The suppression of boric oxide solubility in themixed sodium-potassium system tends to disappear with rising temperature, although the pH relationships remain much the same. The solubility depression i s still evident at 300 C. (first, third, and fifth experiments in Table 11); but at 400 C. the mixed system has a higher boric oxide solubility than either alkali separately. This i s due to a widening of the solubility peak for each individual alkali, so that the intermediate pH i s no longer a region of particularly low solubility for each individual alkali system. The effect of mixing all three alkalies i s shown in the seventh experiment in Table I. Here excesses of sodium penta- and diborate, ammonium penta- and diborate, and potassium penta- and diborate were shaken with water at 200 C. These results a r e not easy to explain. The pH i s high (9.05) and the potassium ion solubilityapproaches that of the peak potassium solution at pH 9.17. The ammonium content, however, i s higher than in the mixed ammoniumpotassium system, although the pH is further removed from the optimum pH for the ammonium system. Similarly, the sodium content is much the same a s that of the mixed sodium-potassium system, although the pH is higher. These anomalies do not appear in the results of experiments with combinations of all three alkalies at 30° and 40' C. At both these temperatures the pH of the combination i s intermediate between the pH's of the individual alkalies, and between the pH's of the various pairs of alkalies. Moreover, the amount of each alkali dissolving in the combination appears to be controlled by the pH of the final solution. The theory here advanced, that the amount of boric oxide dissolving at any one temperature is dependent mainly on the pH of the final solution, offers an explanation for many of the published figures on the solubility of boric acid in solutions of other salts (11). Thus a number of investigators have measured the solubility of boric acid i n solutions of such compounds a s inorganic acids, sodium chloride, sodium citrate, sodium acetate, and sodium potassium tartrate. A series of such solutions saturated with boric acid at 18' C. was made up following Kolthoff's figures a s quoted by Seidell (11, p. 121) and the pH values were measured at 20° C. 8.0; SOIW"!
I OM hydrochloric acld Warer n 5~ sori~nlsuifatc n 2 5 S~O ~ W oxaiate
1.OM ~ o d i i l r naudIeCe 0 5M a o d i u r , cilratc
ZL
e
2 07 2.56 3 06 3 20 3 79 5 29
"li
0 3 3 3 5 5
ny 76 85 20 80 R9
These figures suggest that the increase in boric oxide solubility i s due to the rise in pH. The pentaborate formed by this increase in pH has its solubility suppressed to some extent by the presence of the common sodium ion of the solvent compound. Work is being continued on this effect of other compounds on the solubility of boric acid, to see how many of the known cases can be explained by this pH theory. A s for the formulation of solutions of maximum boric oxide solubility (the purpose of this investigation), the results show that at 20°, 300, and 40° C. the peak boric oxide solubility of the simple sodium oxide-boric oxide system can be substantially increased by changing to the sodium oxide-ammonium oxide-boric oxide system. Moreover, in this latter system the composition limits of t h e solubility peak a r e no longer narrow, and by varying the sodium oxide-ammonium oxide ratio it i s possible to vary the pH over more than 1pH unit without greatly influencing the boric oxide solubility.
ACKNOWLEDGMENT
The authors wish to express thanks to the director, Dominion Laboratory, for permission to publish these results, and to L. R. L. Dunn for assistance with analyses.
REFERENCES (1) Blasdale, W. C., Slansky, C. M., J. Am. Chem. SOC.61, 917 (1939). (2) Cummins, J. E., J. Council Sci. Ind. Research l2, 30 (1939). (3) Dukelski, M. P., Z. anorg. Chem. 62, 114 (1906). (4) Harrow, K. M., New Zealand J. Sci. Technol. No. 4 , E (1951). (5) Kirk, R. E., Othmer, D. F., "Encyclopedia of Chemical Technology," vol. 2,pp. 600-1, Interscience, New York, 1948. (6) Rollet, A. P., Peng, C. M., Bull. EOC. chim. (5) 2,982-5 (1935). (7) Rosenheim, A , , Leyser, F., Z. anorg. u. allgem. Chem. 119, 1 (1921). (E) Sborgi, U., Gazz. chim. ital. 62, 3 (1932). (9) Sborgi, U., F e r r i , L., Mem. accad. Lincei 13, 570 (1922). (10) Sborgi, U., Gallichi, F., Gazz. chim. ital. 54, 255 (1924). (11) Seidell, Atherton, "Solubilities of Inorganic and Metal Organic Compounds," pp, 119-29, Van Nostrand, New York, 1940.
m,
a
Received for review August 1, 1955
AcceptedSeptember 18, 1955
Density, Electrical Conductance, and pH of Solutions in the System Ca0-P20s-H20 at 25OC. ANTHONY J. SMITH AND E. 0. HUFFMAN Division of Chemical Development, Tennessee Valley Authority, Wilson Dam, Ala.
Information concerning t h e properties of phosphoric acid and calcium phosphate solutions i s applicable to many problems in the phosphate industry, agronomy, and biochemistry. The density, electrical conductance, and pH of solutions i n the system CaO-P205-H20, a s measured by standard methods, a r e reported here. Compositions of the solutions were bounded by the line P205-H2O and the solubility isotherms of anhydrous dicalcium phosphate and monocalcium phosphate monohydrate (3, 6). The electrical conductance of 0.001 to 18.02 molal solutions of phosphoric acid at 25O C. and the limiting conductance of the H2P04 ion have been reported (14). 1956
Precise measurements of the density of solutions of phosphoric acid at 25O C. were reported recently (5). PREPARATION OF SOLUTIONS
Water for preparing the solutions, purified in a conductance water still, had a maximum specific conductance of 2 x ohm-1 cm.-l.Thephosphoricacid was purified by triple crystallization a s either the anhydrous (17) o r hemihydrate (15) form. The concentration of solutions prepared from these crystals was determined from the densities of the solutions ( 5 ) . The two sources of acid CHEMICAL AND ENGINEERING DATA SERIES
99
yielded solutions that in density, conductance, and pH
were indistinguishable. Monocalcium phosphate monohydrate was thrice crystalized from 50% phosphoric acid solution (12) and the crystals, washed' with water-free acetone, had crystallographic and optical properties agreeing with those published (2, 12). A microscopic examination disclosed no extraneous phases, and a spectrographic analysis disclosed no significant amounts of impurities. Solutions of known composition were prepared by mixing weighed amounts of monocalcium phosphate monohydrate, water, and phosphoric acidof known concentration. A series of such solutions, containing different amounts of the calcium salt, was prepared for each concentration of phosphoric acid, and stored in rdber-stoppered, borosilicate glass flasks. Weights were corrected to vacuum. The 1953 atomic weights (18) were used in calculationsof molalities. METHODS OF MEASUREMENT
Density. Densitywas measured inpycnometers fittedwith ground-glass stoppers, This method has been described (4). The density of the standardizing liquid, conductance water at 25' C., was taken a s 0.99707 gram/ml. The solutions were brought to thermal equilibrium in a water bath maintained at 25' 2 0.02O C. The weights were calibrated, and all weighings were corrected to vacuum. Electrical Conductance. Electrical conductance was measured at 250 f O.O0lo C. with the equipment and methods used by Mason and Culvern (14). The results were corrected for calibration of the electrical bridge and for conductance of the water. The cells were standardized with solutions of potassium chloride (13) that had been thrice crystallized from water and fused. The Beckmann thermometer for measuring the temperature of the oil bath was calibrated against a platinum resistance thermometer that had been calibrated by the National Bureau of Standards. The resistance thermometer was read with a calibrated Mueller resistance bridge. pH. Measurements of pH were made at 2S0f 0.02' C. w i t h a modified Hildebrand hydrogen electrode (11) and a Beckman No. 4970 calomel half-cell having a saturated potassium chloride bridge. The pH cell was a borosilicate glass H-cell just large enough to contain the electrodes and 5 ml. of the test solution. The potassium chloride in the salt bridge was purified by three recrystallizations. The hydrogen electrode was made of a 0.5-mm. platinum wire that extended 2.5 cm. beyond its seal in the end of a 5-mm. borosilicate glass tube. Immediately before each use, the electrode was cleaned (1) and platinized in a chloroplatinic acid solution (7). To obtain the recommended current density, a current of 100 ma. was passed during platinization, and the current was maintained for periods ranging from 0 to 180 seconds, depending upon the test solution whose pH was to be measured. The platinized electrode was washed for 1 minute in a voluminous stream of tap water and then rinsed with the test solution. Purified hydrogen (7) was washed in bubblers that were immersed in the bath containing the pH cell, once with water and twice with the test solution. The e.m.f. of the pH cell became constant within 0.1 mv. in 10 to 100 minutes. The time required for equilibration generally increased a s the concentration of the test solution was increased. The calomel half-cell was standardized against four National Bureau of Standards buffer solutions: 0.01-molal borax, 0.025-molal potassium dihydrogen phosphate-disbdium hydrogen phosphate, 0.05-molal potassium acid phthalate, and 0.01-molal potassium hydrogen tartrate. A 0.1-molal hydrochloric acid solution, prepared from the constant-boiling mixture, was an additional standard. From the mean activity coefficient in water at 25' C. of hydrochloric acid (9) and of potassium chloride (8). and an assumption that the activity of the chloride ion in the re-
100
INDUSTRIAL AND ENOINEERINO CHEMISTRY
spective solutions is the same when the solutions have the same ionic strength, the pH of the 0.1-molal hydrochloric acid solution was calculated to be 1.085. The of the calomel half-cell at 25O C. was 0.2442 volt absolute. The pH values were calculated from the equation
E pH
a
- EiH
2.30259RT/P
E 3c
-
0.2442 0.059156
where the values for R , T, and F a r e those published in 1952 (16); E is the measured e.m.'f. in volts absolute; and E;H is treated a s a constant (10). RESULTS
To make the results readily usable, the observed values were used to derive a table giving secondary values for the properties at round values in molal concentrations of phosphoric acid and monocalcium phosphate. Interpolations were made on the assumption that, over small ranges of composition, the values of density,specific conductance,and pH a r e linear functions of composition. The interpolations were calculated by the equation
where Nj = interpolated value of density, specific conductance, o r pH N = measuredvalue mA = molality of HaPOd ma -p molality of Ca(H,PO& Most of the adjusted concentrations differed from the primary values by only a few thousandths of a molal unit. The adjustments in values of density, specific conductance, and pH, correspondingly small, were made with sufficient accuracy by taking the slopes, 3 N/ 3 m, from large plots of the measured values against the molalities of the acid or of the salt. The values at roundmolalities a r e shown in Table I. Tables giving values for the properties at round concentrations in weight per cent of phosphorous pentoxide and calcium oxide were derived from the data in Table I. The interpolated values of density in Table 11, of specific conductance in Table 111, and of pH in Table IV, were read from large- scale plots of the respective quantities against the per cent of phosphorus pentoxide. Each of these plots contained lines of constant per cent of calcium oxide. From the deviations between the measured and interpolated quantities it was calculated that the probable e r r o r of the interpolated values of density and specific conductance i s fO.0002, with a 99% confidence limit of f0.0005. The probable e r r o r of the interpolated pHvalues is fO.01, with a 99% confidence limit of f0.026. Within the limits of concentration covered in this study, values for density andeither specific conductanceor pH a r e sufficient to define the composition of a solution in the system CaO-P205-H20 at 250 C. The interpolated values a r e expected to be useful in the development and control of processes in which phosphoric acid and calcium phosphate solutions a r e involved. The densities and specific conductances a r e fundamental physicochemical properties of the solutions. The significance and practical utility of pH values a r e reviewed elsewhere (10). ACKNOWLEDGMENT
T. H. Sherer assisted in the preparation of the tables of interpolated values. VOL. 1, NO. 1
TABLE 1. DENSITY, SPECIFIC CONDUCTANCE, AND pH OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C.
Composition of Solution Molality Weight H3P04 Ca(H2P04)2 0.1
0.01042 0.00928 0.00967 0.01049 0.01150 0.01255 0.01360 0.01456 0.01562 0.01653 0.01743 0.01834 0.01913
1.586 1.790 1.930 2.052 2.133 2. 206 2.258 2.309 2.350 2.385 2.409 2.438 2.463
3.38 3.64 3.89 4.14 4.39 4.63 5.83 6.98 8.08 9.13 10.14
0.000 0.106 0.212 0.317 0.420 0.523 1.024 1.503 1.963 2.405 2.829
1.02277 1.02610 1.02934 1,03270 1,03593 1.03939 1,05591 1.07177 1,08742 1.10287 1.11766
0.03193 0.02954 0.02813 0.02731 0.02692 0.02701 0.02873 0.03134 0.03373 0.03592 0.03762
1.102
1.4
1.166 1.231 1.293 1.351 1.408 1.587 1.697 1.777 1.838 1.897
1.6
5.27 7.57 9.69 11.65 13.46
0.000 0.997 1.914 2.761 3.545
1,03704 1.06900 1.09974 1.12690 1.15698
0.04613 0.03839 0.04145 0.04455 0.04635
0.947 1.315 1.503 1.613 1.677
0.0 0.2 0.4 0.6 0.8
6.46 8.68 10.72 12.61 14.36 15.99
0.000
1.04662 1.07786 1,10796 1.13691 1.16446 1,19087
0.05535 0.04538 0.04683 0.04913 0.04991 0.05119
0.851 1.155 1.329 1.423 1.493 1.525
0.0
9.28 11.30 13.16 14.89 16.49 17.99 19.79
0.000 0.940
1.06926 1.09914 1,12776 1.15562 1.18185 1.20703 1.23137
0.07966 0.06477 0.06204 0.06202 0.06202 0.06161 0.06056
0.673 0.916 1.075 1.168 1.229 1.271 1.300
0.20 0.22 0.24 0.00
0.02 0.04 0.06 0.08 0.1
0.2 0.3 0.4 0.5 0.6 0.0 0.2 0.4 0.6 0.8
1.o
1.5
pH
1.00243 1.00595 1.00954 1.01303 1.01661 1.02011 1.02356 1,02696 1.03041 1.03379 1.03727 1.04061 1.04400
0.18
1.o
Composition of Solution Weight ipo ' Density, Molality CaO Grarns/MI I. H3PO4 Ca(HzP04)~ P2O5 2.0 11.87 0.0 0.000 1.09069 13.71 0.903 1.11898 0.2 15.41 1.740 1.14652 0.4 16.99 2.518 1.17304 0.6 3.243 1.19845 18.47 0.8 19.85 3.922 1.22298 1.0 21.15 1.24654 4.557 1.2 22.36 5.153 1.26912 1.4
0.000 0.111 0.220 0.329 0.436 0.543 0.648 0.753 0.857 0.960 1.062 1.163 1.263
0.10 0.12 0.14 0.16
0.8
Specific Conductance, Ohm-l Crn.-l
0.70 0.98 1.25 I .53 1.79 2.06 2.33 2.59 2.85 3.10 3.36 3.61 3.86
0.00 0.02 0.04 0.06 0.08
0.5
Density, Grams/Ml
0.2 0.4 0.6 0.8 1.0
1.2
0.980 1.883 2.717 3.491 4.210
1.808
2.613 3.363 4.061 4.713
2.121
0.000 0.894 1.724 2.496 3.216 3.889 4.520 5.113 5.670
1.09576 1.12371 1.15091 1.17691 1.20222 1.22614 1.24910 1.2i138 1.29264
0.10669 0.9922 0.08135 0.07818 0.07599 0.07385 0.07138 0.06874 0.06597
0.499 0.680 0.805 0.887 0.943 0.986 1.021 1.046 1.O60
20.40 21.71 22.93 24.08 25.17 26.19 27.15 28.07
0.000
0.780 1.510 2.196 2.841 3.449 4.023 4.566
1.16689 1.19097 1,21403 1.23659 1.25805 1.27940 1.29891 1.31893
0.17372 0.15059 0.13492 0.12312 0.11411 0.10825 0.09960 0.09335
0.123 0.198 0.276 0.308 0.358 0.399 0.412 0.455
1.o 1.2
26.82 27.79 28.70 29.57 30.39 31.16 31.90
0.000 0.686 1.334 1.947 2.527 3.078 3.601
123012 1.25075 1.27059 1.28979 1.30850 1.32673 1.34394
0.21445 0.19011 0.17037 0.15464 0.14126 0.12978 0.11990
-0.157 -0.120 -0.076 -0.049 -0.014 0.014 0.035
0.0 0.2 0.4 0.6 0.8 1.0 1.2
31.83 32.56 33.27 33.93 34.57 35.17 35.75
0.000
0.613 1.195 1.748 2.276 2.779 3.259
1.28366 1.30158 1.31930 1.33724 1.35164 1.36740 1.38275
0.23120 0.20748 0.18744 0.17001 0.15513 0.14226 0.13058
-0.345 -0.335 -0.318 -0.306 -0.294 -0.286 -0.269
0.0 0.2 0.4 0.6 0.8
35.85 36.42 36.97 37.49 37.99 38.47
1.32918 1.34528 1.36067 1.37477 1.38908 1.40342
0.23284 0.21071 0.19145 0.17478 0,16001 0.14690
-0.516 -0.517 -0.538 -0.536 -0.568 -0.571
0.0
0.2 0.4 0.6 0.8 1.o
1.2 1.4 6.0
0.0 0.2
0.4 0.6 0.8
8.0
10.0
p~
0.509 0.695 0.825 0.916 0.972 1.014 1.048 1.073
12.46 14.26 15.93 17.48 18.93 20.28 21.55 22.75 23.87
0.0
0.2 0.4 0.6 0.8 1.o 1.2
4 .O
Specific Conductance, ohm-1 Crn.-l 0.10094 0.08341 0.07874 0.07478 0.07307 0.07 124 0.06919 0.06686
1.0
0.000
0.553 1.082 1.587 2.070 2.533
TABLF 14. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM C&-P205-H20 AT 25'C. (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P$5 AND COO)
P2O5,
%
0.0
0.1
0.2
0.3
0.4
0.5 0.6
0.7
0.8
CaO, % 1.0
0.9
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
20
0.0 0.9971
0.2 0.9987 0.4 1.0002 014 0.6 1.0017 031 045 0.8 1.0032 046 060 074 1.0 1.0048 062 075 089 1.2 1.4 1.6 1.8
1.0063 1.0077 1.0092 1.0107 2.0 1.0122
1956
076 090 090 105 105 120 120 135 135 150
104 119 134 149 164
118 133 148 163 178
147 163 178 192 193 206 221
2.2 1.0137 151 165 2.4 1.0152 166 180 2.6 1.0167 181 195 2.8 1.0183 196 210 3.0 1.0198 212 225
179 194 209 224 240
193 208 223 238 254
206 223 238 253 268
221 237 252 266 281
236 250 265 280 295
263 278 291 293 307 308 321 336
CHEMICAL AND ENGINEERING DATA SERIES
10 1
TABLE II. DENSITY IGRAMS/ML.) OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (Contd.) (VALUES INTERPOL'ATED AT ROUND WEIGHT PERCENTAGES OF P205 AND COO)
p205~ % 0.0 3.2 1.0213 3.4 1.0229 3.6 1.0244 3.8 1.0259 4.0 1.0274
CaO,
0.1 0 . l 226 241 242 256 257 272 273 287 288 302
0.3 255 270 285 300 316
0.4 269 284 299 315 330
0.5 0.6 0.7 283 296 310 298 311 325 314 327 341 329 342 356 344 358 371
332 347 363 378 393
345 361 377 392 407
360 375 391 406 421
0.9 337 352 367 383 398
1.0 351 365 380 396 411
1.1 1.2 1.3 1 . 4 364 380 395 408 410 423 437 425 438 453
373 387 400 388 402 415 404 418 430 419 433 446 435 448 461
413 429 444 459 475
426 444 457 473 488
441 454 457 470 472 486 488 502 503 517
491 506 522 537 553
504 519 520 534 535 550 551 565 567 582
4.2 4.4 4.6 4.8 5.0
1.0289 1.0304 1.0321 1.0336 1.0351
303 319 334 350 366
318 333 348 364 380
5.2 5.4 5.6 5.8 6.0
1.0367 1.0383 1.0398 1.0414 1.0429
381 397 412 428 443
395 409 411 425 427 440 442 456 458 472
423 437 450 464 438 452 465 480 454 468 481 495 470 483 497 511 486 499 513 526
6.2 6.4 6.6 6.8 7.0
1.0445 1.0461 1.0476 1.0492 1.0508
459 475 491 507 523
473 489 505 521 537
487 503 519 535 550
501 516 532 548 564
514 530 546 562 578
7.2 7.4 7.6 7.8 8.0
1.0524 1.0540 1.0556 1.0572 1.0588'
539 553 566 555 569 582 571 585 598 587 601 614 603 617 631
580 596 612 628 644
593 607 609 623 625 639 641 655 657 671
8.2 8.4 8.6 8.8 9.0
1.0604 1.0620 1.0637 1.0653 1.0669
619 633 635 649 651 666 667 682 683 698
647 661 663 677 679 693 695 709 711 725
674 690 706 722 738
9.2 9.4 9.6 9.8 10.0
1.0685 1.0702 1.0718 1.0735 1.0751
700 717 733 749 765
715 731 748 764 780
728 744 761 777 793
742 758 774 790 807
755 769 783 796 771 785 799 813 787 802 815 829 804 818 832 846 820 834 848 862
10.2 10.4 10.6 10.8 11.0
1.0768 1.0784 1.0801 1.0817 1.0834
782 799 815 832 848
796 813 829 846 863
809 826 843 859 876
823 840 856 873 889
836 853 870 886 903
851 868 884 901 918
865 878 892 906 881 895 908 923 898 912 925 939 914 928 941 956 931 945 958 973
865 879 882 896 899 913 916 930 932 947
893 909 926 943 960
906 923 940 957 973
920 937 954 971 987-'
935 952 969 985
948 965 982 998
1004 020 037 026 040 054 030 044 057 071
045
1004 021 038 055 059 072
019 036 053 070 087
032 049 067 084 101
047 064 081 099 116
061 078 095 112 129
075 092 109 126 144
105 119 122 136 139 153 141 157 170 158 174 188
133 151 168 185 202
147 164 182 199 216
161 178 196 213 231
11.2 1.0850 11.4 1.0868 11.6 1.0885 11.8 1.0901 12.0 1.0918
13.0 1.1003 017
1 02
70
0.8 323 338 354 369 384
031
528 544 560 576 591
477 493 508 524 539
468 484 500 515 531
499 514 530 545 546 561
532 548 564 579 596
546 562 577 593 610
562 577 593 608 624
611 627 643 659 675
625 641 657 673 689
662 677 691 678 693 707 694 709 723 710 725 739 726 741 755
705 721 737 753 769
542 555 568 582 558 571 584 598 574 586 600 614 589 602 616 630 605 618 632 646 621 637 653 669 685
634 648 651 664 667 680 683 696 699 712
598 613 629 645 661
687 702 715 729 742 757 772 785 704 718 731 745 758 773 788 801 720 734 747 761 774 789 804 818 736 750 764 777 790 805 820 834 752 767 780 793 807 821 836 850 809 823 838 826 839 854 842 856 871 859 873 887 875 889 903
853 869 886 902 919
2.0
589 605 621 635 636 651 652 667
681
640 655 656 671 672 686 687 702 703 718
668 684 699 715 731
683 698 714 730 746
697 713 727 728 742 744 758 774 760 774 789
719 735 751 767 783
747 763 779 795 811
762 776 790 805 778 792 806 821 794 808 822 837 810 824 838 853 826 840 853 869
734 750 766 782 798
799 814 815 831 832 847 848 863 864 879
827 842 857 871 886 845 859 873 887 902 860 875 889 903 918 876 891 905 919 935 892 907 921 935 951
881 898 914 931 947
909 923 938 952 968 925 940 954 968 984 941 956 958 973 975 989
895 912 929 945 962
020 034 050 036 051 068 053 067 084 070 084 100 087 101 117
047 062 064 079 080 095 098 113 114 128
075 090 104 092 107 121 109 124 138 126 142 156 142 158 172
117 135 153 170 187
088 105 123 139 157
103 120 138 155 172
118 135 152 169 186
131 149 165 183 200
146 164 181 198 216
160 178 195 212 230
176 193 210 228 246
190 207 224 242 260
204 220 222 238 240 256 257 273 274 290
175 192 210 227 244
190 207 225 242 259
204 221 239 256 274
218 235 253 270 288
233 251 268 285 303
247 265 282 299 317
263 281 298 316 333
278 295 312 330 347
292 310 327 345 362
308 325 343 361 379
234 248 262 277 291 306 251 266 279 294 309 324 269 284 297 312 327 341 287 301 315 330 345 359 305 318 333 348 363 377
321 338 356 374 391
334 352 370 388 406
350 368 386 404 422
365 383 401 419 436
380 398 416 434 452
396 414 432 450 467
394 412 430 448 466
409 427 445 463 481
424 441 459 477 495
439 457 476 493 512
454 469 472 488 490 506 508 524 526 542
485 503 521 539 557
1.1107 1.1124 1.1142 1.1160 1.1177
121 138 156 173 191
135 152 169 187 205
148 162 176 191 166 179 193 208 184 197 210 225 201 215 228 243 219 232 246 261
205 220 223 237 240 255 258 272 275 290
15.2 15.4 15.6 15.8 16.0
1.1195 1.1212 1.1230 1.1248 1.1266
208 226 244 261 279
223 241 258 275 293
236 254 272 290 307
293 308 322 336 351 366 311 326 340 354 368 384 329 343 358 371 386 402 347 361 376 389 404 420 365 379 394 408 422 438
INDUSTRIAL AND ENGINEERING CHEMISTRY
1.9
034 050 067 084 101
14.2 14.4 14.6 14.8 15.0
264 279 282 297 299 315 317 333 335 351
1.8
019 035 052 069 086
035 049 062 052 066 079 069 083 096 086 100 113 103 118 131
250 268 285 303 321
1.7
1006 023 039 056 073
1.1021 1.1038 1.1055 1.1072 1.1089
089 107 124
867 883 899 916 933
576 592 607 623 639
1.6
920 937 953 970 987
13.2 13.4 13.6 13.8 14.0
076 093 110 128 145
1.5
381 398 416 434 452
135 152 169 186 204
VOL. 1, NO. 1
TABLE II. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (tontd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO) P 205
%
CaO, % 0.9 1.0
1.1
1.2
1.3
397 415 433 451 469
412 430 448 466 484
426 444 462 481 498
440 458 476 495 513
456 474 492 510 528
470 484 488 502 506 521 524 539 541 556
473 491 510 528 546
487 506 524 543 561
502 521 539 557 576
516 534 553 571 589
531 549 567 585 604
546 564 583 601 619
560 579 597 615 634
550 568 587 605 624
565 583 601 620 638
580 594 608 598 612 626 617 631 644 634 649 663 653 668 683
623 641 660 679 697
627 646 665 684 703
642 661 679 698 717
657 672 676 691 694 709 713 727 732 746
687 706 724 743 761
701 719 738 757 775
716 735 754 772 791
721 742 761 780 799
736 756 775 794 813
751 770 789 809 828
766 786 805 824 843
774 789 793 808 812 827 832 847 851 866
803 818 832 847 822 837 851 866 841 857 871 885 861 876 890 905 880 896 909 924
862 882 901 920 939
871 890 910 929 949
885 905 925 945 964
899 919 938 958 978
063
2013 027 042 033 047 062 053 067 082 073 086 101 077 092 106 121
0.0
0.1
0.2
0.3
0.4
0.5
0.6
16.2 16.4 16.6 16.8 17.0
1.1284 1.1301 1.1319 1.1338 1.1355
296 315 333 351 369
310 328 346 364 383
325 343 360 379 398
339 357 375 393 411
353 371 389 407 426
369 383 386 401 404 419 422 437 440 455
17.2 17.4 17.6 17.8 18.0
1.1374 1.1391 1.1410 1.1428 1.1446
387 406 424 441 460
401 419 437 456 474
416 434 452 470 489
430 448 466 484 502
444 458 462 476 480 495 499 513 516 531
18.2 18.4 18.6 18.8 19.0
1.1465 1.1483 1.1501 1.1520 1.1538
478 492 497 511 515 529 534 548 552 567
507 520 525 538 544 557 562 576 581 595
535 552 571 590 609
19.2 19.4 19.6 19.8 20.0
1.1557 1.1576 1.1594 1.1613 1.1632
572 589 608 626 644
586 604 623 641 659
599 618 637 655 673
613 632 650 669 687
20.2 20.4 20.6 20.8 21.0
1.1651 1.1670 1.1689 1.1707 1.1727
663 683 702 721 740
677 697 716 736 755
693 712 731 750 769
706 726 745 764 783
21.2 21.4 21.6 21.8 22.0
1.1746 1.1765 1.1784 1.1803 1.1823
759 778 797 817 836
22.2 22.4 22.6 22.8 23.0
1.1841 1.1861 1.1880 1.1900 1.1920
856 875 895 914 934
24.0 1.2018
1956
0.8
I
033
048
0.7
1.6
1.7
498 517 535 554 572
514 532 550 569 587
530 544 548 563 566 581 584 599 603 618
576 594 611 630 649
590 608 626 645 664
605 624 642 661 679
621 639 658 676 695
638 652 656 670 675 689 694 707 712 726
667 685 704 722 741
682 700 719 738 756
698 717 735 754 772
714 729 733 748 751 766 769 784 788 803
731 749 768 787 806
744 763 782 801 821
759 777 796 815 836
774 793 812 831 852
791 810 829 847 867
807 826 844 863 882
779 799 818 837 856
794 811 826 814 830 846 833 849 865 852 868 884 871 887 903
840 860 879 897 917
856 875 894 914 933
871 891 910 929 949
887 902 907 922 926 942 945 961 964 980
876 894 914 933 953
891 910 928 948 968
915 935 953 973 993 072 092 111 131 151
086 106 126 146 166
102 122 142 162 182
1.8
019 039 059 078 098
034 050 066 053 069 085 073 089 105 094 109 125 113 128 145
1.9
2.0
560 578 596 614 633
575 594 612 630 649
636 651 667 654 669 685 613 688 704 691 706 722 710 725 741 744 763 781 799 819
759 778 797 816 834
822 837 841 856 859 874 878 893 897 913
853 872 890 910 928
917 936 955 975 994
947 967 987
2000 014 019 034 038 053 058 073 077 092
907 926 945 965 984 2003 023 043 062 082
057 077 097 117 136
1.41.5
933 952 972
030 045 050 065 069 084 089 104 108 124
082 102 121 140 160
097 117 137 156 176
112 132 151 171 191
128 148 167 187 207
143 163 183 203 223
197 217 237 257 277
212 232 252 272 292
228 248 268 288 308
243 263 284 304 323
312 329 333 349 353 370 374 391 394 411
344 365 385 406 426
118 133 148 138 153 168 158 173 188 178 193 208 198 214 229
165 185 205 224 244
181 202 222 241 261
24.2 24.4 24.6 24.8 25.0
1.2037 052 068 082 096 1.2058 072 087 102 117 1.2078 092 107 123 137 1.2097 112 127 143 157 1.2118 132 147 163 177
112 132 152 172 192
126 146 L66 187 206
141 161 182 202 222
156 171 176 191 197 212 217 232 237 252
186 202 206 223 227 243 247 263 267 283
218 239 259 280 300
234 254 274 295 315
249 269 279 310 331
265 285 306 326 347
282 297 302 318 323 338 343 359 364 379
25.2 25.4 25.6 25.8 26.0
1.2138 1.2158 1.2178 1.2198 1.2219
152 172 192 212 232
167 187 207 227 247
183 203 223 243 264
197 217 237 258 279
212 233 253 274 294
226 247 267 288 308
242 262 283 303 323
257 272 277 293 298 314 319 334 339 354
287 307 328 349 369
320 341 361 382 402
336 356 376 397 418
351 371 391 412 432
367 387 408 429 449
384 405 426 446 466
400 421 442 462 482
26.2 26.4 26.6 26.8 27.0
1.2239 1.2259 1.2280 1.2300 1.2321
253 274 295 315 335
268 285 289 305 310 326 330 346 350 367
299 319 340 361 382
314 335 356 376 397
328 344 350 365 370 385 390 406 412 427
375 390 406 423 396 411 427 444 417 432 448 465 437 452 469 486 458 473 490 507
439 460 480 501 522
454 475 495 516 537
470 491 512 533 554
487 508 529 550 571
502 518 524 540 545 561 566 582 587 602
535 556 577 598 619
27.2 27.4 27.6 27.8 28.0
1.2342 1.2362 1.2383 1.2403 1.2425
356 377 398 418 440
371 392 413 433 455
388 408 429 450 471
403 423 444 465 486
417 438 459 480 501
432 453 474 495 517
448 463 468 485 490 506 511 526 532 547
480 501 522 543 563
543 565 585 606 628
558 580 600 621 642
575 596 617 638 660
592 613 634 655 677
609 630 651 672 693
624 645 667 688 710
641 657 662 677 684 699 705 720 726 742
28.2 28.4 28.6 28.8 29.0
1.2446 1.2466 1.2488 1.2509 1.2530
461 482 503 524 545
476 497 518 539 560
492 513 534 555 576
507 528 549 570 592
522 543 564 585 607
538 560 580 601 623
553 575 595 617 638
585 600 606 621 627 642 649 664 670 685
616 634 649 637 655 671 659 676 693 681 698 715 703 720 736
664 686 708 730 751
681 702 724 746 766
698 720 742 763 784
715 736 758 779 800
731 753 774 796 817
747 768 790 812 833
360 380 401 422 442
569 590 611 632 653
495 515 536 557 578
304 325 345 366 386
511 531 552 574 594
527 549 570 591 612
415 436 457 477 497
432 447 452 467 473 488 494 509 514 530 550 571 592 614 635
764 785 807 828 850
CHEMICAL AND ENGINEERING DATA SERIES
103
TABLE II. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM Cd-P205-H20 AT 2Sb c. (C0ntd.J (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P205 AND C d )
P2O5, o.o
w
CaO,
0.8 0.9
1.0 1.1
1.2 1.3
1.4 1.5
29.2 1.2552 29.4 1.2572 29.6 1.2594 29.8 1.2615 30.0 1.2637
566 587 609 630 651
581 602 623 645 666
598 619 640 662 683
614 635 656 677 700
628 649 671 692 715
644 665 687 709 731
660 681 702 724 746
675 697 718 740 761
692 714 736 757 778
707 729 751 773 793
724 746 767 789 810
742 763 785 806 827
758 779 801 822 843
773 794 815 837 858
788 810 831 853 875
30.2 30.4 30.6 30.8 31.0
1.2658 1.2680 1.2702 1.2723 1.2745
673 695 717 738 760
688 710 732 753 775
704 726 748 770 792
721 742 764 785 808
735 757 779 800 823
752 774 796 817 839
769 790 811 833 854
784 805 826 848 869
800 821 843 865 886
815 836 858 880 902
832 853 875 897 918
849 871 892 914 936
864 886 908 930 951
880 902 923 945 967
896 913 918 934 940 956 962 978 984 3000
929 950 973 995 017
945 967 990 3012 033
963 985 3007 028 050
979 3001 023 045 067
31.2 31.4 31.6 31.8 32.0
1.2767 1.2789 1.2811 1.2833 1.2855
782 804 826 848 870
797 819 841 863 885
814 836 857 879 901
829 851 873 895 917
844 866 889 910 932
861 883 905 926 948
876 898 921 942 964
891 913 936 958 979
908 930 953 975 997
022 045 067 089 111
039 061 083 105 127
056 078 100 123 144
073 095 117 139 161
089 111 134 156 178
32.2 32.4 32.6 32.8 33.0
1.2877 1.2900 1.2922 1.2944 1.2966
892 915 937 959 981
907 930 952 974 996
3002 024 047 069 091
019 041 064 086 108
035 057 080 102 125
051 074 096 118 140
068 091 113 135 157
084 107 129 152 174
100 117 123 145 168 190
139 162 184 207
133 156 178 201 224
150 173 196 218 241
167 189 212 234 257
183 206 228 251 274
200 223 246 269 291
33.2 33.4 33.6 33.8 34.0
1.298813003 1.3012 026 1.3033 048 1.3055 071 1.3078 093
018 041 063 086 108
035 057 080 103 125
051 074 096 118 140
066 089 110 134 156
082 105 127 150 172
098 120 143 166 188
113 136 158 182 204
130 153 176 199 222
147 169 192 215 238
163 186 208 231 254
180 202 225 248 270
196 218 241 264 286
213 236 258 281 304
230 252 275 298 321
246 269 292 315 338
264 287 310 332 355
280 303 326 348 371
297 320 343 366 388
314 336 360 383 406
34.2 34.4 34.6 34.8 35.0
1.3102 1.3125 1.3148 1.3171 1.3194
117 140 162 185 208
132 155 177 200 223
148 170 193 217 239
163 186 209 232 255
178 202 224 247 270
194 218 241 263 286
210 233 256 279 302
226 249 272 295 318
244 267 290 313 336
261 284 306 330 353
277 300 324 346 369
293 316 340 362 384
309 332 356 378 401
327 350 374 396 419
344 367 390 413 436
361 384 407 430 452
379 401 425 448 470
394 418 441 464 486
411 434 458 481 504
429 451 475 498 521
35.2 35.4 35.6 35.8 36.0
1.3217 1.3240 1.3263 1.3285 1.3309
231 254 277 301 324
246 270 292 316 339
262 286 309 332 356
279 302 325 348 372
294 317 340 363 387
310 333 356 379 403
326 349 372 396 419
341 365 388 411 435
359 382 405 428 452
376 399 423 446 469
392 416 439 462 485
408 432 455 478 502
425 448 471 494 518
442 466 489 511 536
459 482 506 529 553
476 500 523 546 570
494 517 541 564 588
510 533 557 580 604
528 551 574 598 621
545 569 592 615 638
36.2 36.4 36.6 36.8 37.0
1.3332 1.3356 1.3380 1.3403 1.3427
347 371 395 418 442
362 386 410 433 457
379 402 426 449 473
395 418 442 465 489
410 433 457 480 504
426 449 473 496 520
443 466 490 512 537
459 482 505 528 553
476 499 523 546 570
493 516 540 564 587
509 532 556 580 603
525 549 572 596 619
541 565 588 613 636
559 583 606 631 654
576 600 624 649 672
593 617 641 665 689
611 635 659 683 707
627 651 675 699 724
645 669 693 717 742
662 686 710 735 758
37.2 37.4 37.6 37.8 38.0
1.3450 1.3474 1.3498 1.3522 1.3546
465 489 513 537 561
480 504 528 552 576
497 520 544 568 592
512 536 560 584 608
527 551 575 599 623
544 567 591 615 638
561 584 608 632 656
576 601 624 648 671
593 618 641 665 689
611 635 659 683 707
628 651 675 700 724
644 667 691 715 740
660 684 707 732 756
678 702 726 750 774
696 720 744 768 792
713 737 761 785 809
731 755 779 803 827
747 771 795 819 843
765 789 813 837 861
782 806 831 855 879
38.2 38.4 38.6 38.8 39.0
1.3569 1.3593 1.3618 1.3642 1.3666
584 609 633 657 681
600 624 648 672 696
616 640 664 688 712
632 656 681 705 729
647 671 696 720 744
663 687 712 736 760
680 704 728 753 777
696 720 744 769 792
714 737 762 787 810
732 755 780 806 828
749 772 797 822 846
764 788 812 838 861
781 805 829 854 878
799 824 848 873 897
817 841 866 891 914
833 858 882 907 931
851 876 900 925 949
868 894 916 941 966
886 912 934 959 985
904 928 953 978 4002
39.2 39.4 39.6 39.8 40.0
1.3691 1.3715 1.3739 1.3763 1.3788
706 730 754 779 803
721 745 769 794 818
736 762 786 810 834
753 778 802 827 850
768 793 817 842 866
785 809 834 858 883
801 826 851 875 900
816 841 866 891 915
834 859 884 908 933
852 877 902 926 951
870 895 920 944 969
885 910 936 960 985
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0 3.1
3.2
3.3
3.4
3.5
3.6 3.7
820 837 853 870 886
853 870 886 903 902 920
R
1.6 805 827 849 869 891
1.7 821 843 865 886 907
1.8 838 860 881 902 924
1.9 2.0 854 875 897 919 941
871 892 914 936 957
r
CaO, %
p2051 2.0
7.0 1.0789 7.2 1.0805 7.4 1.0821 7.6 1.0837 7.8 1.0853 8.0 1.0869
104
%
0.1 0.2 0.3 0.4 0.5 0.6 0.7
INDUSTRIAL AND ENGINEERING CHEMISTRY
3.8 3.9
4.0
VOL. 1, NO. 1
p205
X
TAbLE II. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM C d - P 2 0 ~ - H 2 0AT 250 C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO) CaO.
X
2.0
8.2 1.0886 8.4 1.0902 8.6 1.0933 8.8 1.0935 9.0 1.0951 9.2 9.4 9.6 9.8 10.0
2.1
2.2 2.3 2.4 2.5
902 919 935 951 967
919 935 952 968 9
1.0968 984 1001 018 1.1001 017 034 1.1017 034 051 1.1033 050 067
3.9
4.0
936 951 952 967 968 982 985 999 1014 8 4 d 031 018 035 052 067 084
032 048 064 082 098
048 064 081 097 113
062 078 095 109 110 125 126 141 157
10.2 1,1050 10.4 1.1068 10.6 1.1084 10.8 1.1100 11.0 1.1117
067 084 101 118 134
084 101 117 134 151
101 118 134 152 168
115 131 148 165 181
130 146 164 180 196
143 160 178 193 210
158 174 191 208 225
174 190 207 224 241
205 222 239 252 256 269
11.2 1.1135 11.4 1.1152 11.6 1.1169 11.8 1.1186 12.0 1.1204
151 168 185 202 219
168 183 202 219 235
184 200 219 235 253
198 215 233 249 269
213 230 247 264 283
227 244 262 279 296
242 259 276 294 311
258 275 292 309 326
273 290 308 324 342
285 304 322 338 356
304 320 338 356 355 374 373 391 407
12.2 12.4 12.6 12.8 13.0
1.1220 1.1238 1.1256 1.1273 1.1289
237 254 271 288 305
253 270 287 304 321
270 286 303 320 338
284 300 317 334 352
299 316 333 350 368
313 331 348 366 383
328 345 363 381 398
344 361 379 396 414
359 377 395 413 430
374 392 410 428 445
391 408 426 444 461
408 426 443 460 478
423 442 458 474 476 492 493 510 527
13.2 1.1308 13.4 1.1325 13.6 1.1343 13.8 1.1361 14.0 1.1379
323 340 358 376 394
339 357 374 392 410
356 373 391 408 426
370 388 405 423 441
386 403 421 439 456
401 419 436 454 471
416 434 452 469 487
432 450 467 485 503
448 465 483 501 519
463 480 498 516 534
479 497 514 532 551
496 513 531 549 567
511 529 547 564 582
528 546 563 581 599
545 562 580 580 597 598 615 633 616 633 651
14.2 1.1396 14.4 1.1414 14.6 1.1432 14.8 1.1450 15.0 1.1467
411 420 447 465 482
427 445 463 481 499
444 462 480 497 515
458 477 495 513 530
474 493 511 528 546
489 507 525 543 561
504 523 540 558 576
520 538 556 574 592
537 554 573 591 609
552 570 588 606 624
568 586 604 622 640
584 603 620 638 657
600 619 637 655 674
617 635 654 672 690
634 652 670 688 706
652 670 688 706 724
669 687 705 723 741
706 723 741 759 759 777
15.2 1.1485 1$.4 1,1503 15.6 1.1521 15.8 1.1539 16.0 1.1557
500 518 536 554 572
517 535 553 570 588
533 550 568 586 604
548 566 584 602 619
564 582 600 618 636
579 597 615 634 652
594 612 630 649 667
610 629 647 665 683
627 645 663 681 700
642 660 679 697 715
659 677 695 713 731
675 693 712 730 748
691 709 728 746 765
708 726 744 763 781
724 743 761 779 798
742 761 779 797 815
759 777 795 814 832
777 795 813 832 850
795 812 830 848 866
830 848 865 883
16.2 1.1575 16.4 1.1594 16.6 1.1612 16.8 1.1630 17.0 1.1649
590 608 626 644 662
606 624 642 661 678
622 640 658 676 694
638 656 674 692 711
654 672 690 709 727
670 688 706 725 743
685 703 721 740 558
702 720 738 756 775
718 736 754 772 791
734 752 771 789 808
750 769 787 805 824
766 785 803 821 840
784 802 820 839 858
800 819 838 856 875
816 834 854 872 890
833 851 870 888 906
850 869 887 905 923
868 886 905 923 941
884 903 921 940 958
901 920 938 956 974
17.2 1.1667 17.4 1.1685 17.6 1.1704 17.8 1.1722 18.0 1.1741
681 699 718 736 755
697 716 734 752 771
713 731 749 768 787
729 747 765 784 804
746 764 783 801 820
761 780 799 817 836
777 795 814 833 851
793 812 831 849 868
810 829 848 866 885
826 845 864 883 901
842 861 880 899 917
859 878 896 915 934
876 895 914 933 951
894 913 931 950 968
909 928 946 965 984
925 942 960 976 993 943 962 980 999
18.2 1.1759 18.4 1.1778 18.6 1.1797 18.8 1.1816 19.0 1.1834
774 793 812 830 849
790 809 827 846 865
806 824 843 861 880
822 841 859 878 897
839 858 876 895 914
854 873 892 911 929
870 888 907 926 945
887 905 924 943 962
904 923 942 960 979
920 939 958 976 995
19.2 1.1853 19.4 1.1872 19.6 1.1890 19.8 1.1910 20.0 1.1928
868 886 905 925 943
884 902 922 941 960
899 918 937 956 975
916 934 953 972 992
2012 031 051 20.8 1.2007 021 037 054 070 21.0 1.2026 041 057 073 090
1956
2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
029 048 067 087 107
044 064 083 103 122
060 080 099 119 138
078 098 117 137 156
095 114 133 153 173
2003 023 041 060 079
018 038 057 076 095
036 055 074 093 112
053 072 091 110 129
070 089 108 128 148
088 107 126 146 165
2014 033 052 072 091
030 049 069 088 108
047 067 086 105 125
066 085 104 123 142
083 102 121 141 160
098 118 137 157 177
114 133 153 173 192
131 151 170 190 209
149 168 187 207 227
167 186 205 224 244
185 204 224 243 262
111 131 151 171 190
128 148 167 187 207
144 164 183 203 223
162 182 201 220 240
180 199 218 238 258
197 217 236 256 275
212 233 253 272 292
230 250 269 288 308
247 266 286 306 326
263 282 302 322 342
281 300 319 338 358
CHEMICAL AND ENGINEERING DATA SERIES
105
TABLE 11. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25oC. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO)
p2059
%
106
CaO,
2.0
X
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
21.2 1.2045 21.4 1.2065 21.6 1.2084 21.8 1.21'24 22.0 1.2124
060 080 100 120 139
077 097 117 136 156
093 113 132 152 172
110 129 148 168 188
126 146 166 186 205
142 162 182 202 222
157 177 197 217 237
174 194 216 236 256
193 213 233 253 273
210 230 250 269 288
227 247 266 286 306
243 263 282 302 322
259 279 299 319 339
277 297 317 337 356
295 315 334 354 373
311 331 351 371 391
328 348 368 388 407
346 366 385 405 424
362 382 401 421 441
378 398 418 438 458
22.2 1.2143 22.4 1.2163 22.6 1.2183 22.8 1.2203 23.0 1.2213
159 179 198 218 238
176 195 215 235 255
192 212 231 252 272
208 228 248 268 288
226 246 265 286 305
242 262 282 302 322
257 277 297 317 337
275 295 315 335 355
293 313 333 352 373
308 329 349 369 389
326 346 366 386 407
342 362 382 403 423
359 379 399 419 439
376 396 4'17 437 457
393 413 433 453 473
411 431 450 470 491
427 447 466 487 507
444 464 484 504 524
461 481 501 521 542
477 497 517 537 558
23.2 1.2243 23.4 1.2263 23.6 1.2284 23.8 1.2304 24.0 1.2323
259 279 299 320 340
276 296 316 336 356
292 312 332 352 372
308 328 349 369 389
326 346 367 387 407
342 362 382 403 423
358 378 399 419 439
376 397 417 437 457
394 414 435 455 475
409 430 451 471 491
427 447 467 487 509
443 463 484 505 525
460 480 501 521 541
478 498 518 539 559
494 514 534 555 575
511 532 552 572 592
527 547 568 588 608
545 565 586 606 626
562 582 602 623 643
579 599 619 640 660
24.2 1.2344 24.4 1.2365 24.6 1.2385 24.8 1.2406 25.0 1,2426
361 381 401 422 442
377 397 417 438 458
393 413 434 455 476
410 430 451 471 492
428 448 469 489 510
444 464 485 505 526
460 480 501 521 542
479 499 520 540 560
496 517 538 558 579
512 532 553 573 594
529 549 571 591 6L2
545 565 586 607 628
562 582 603 623 644
579 599 620 641 661
595 615 636 657 676
612 633 654 674 694
629 649 670 691 712
647 667 687 708 729
664 684 705 725 746
681 702 722 742 764
25.2 1.2447 25.4 1.2467 25.6 1.2488 25.8 1.2509 26.0 1.2530
463 484 505 526 546
480 501 521 542 562
497 518 538 558 579
513 534 554 575 595
531 552 572 593 613
547 567 588 609 629
563 583 604 625 646
581 602 624 643 665
599 619 640 661 682
615 635 656 676 697
632 652 674 694 715
649 670 690 710 731
664 685 706 726 747
681 703 724 744 765
697 719 740 762 782
716 736 757 778 799
732 753 774 795 815
750 770 791 812 832
767 787 808 830 850
784 804 826 847 868
26.2 1.2550 26.4 1.2571 26.6 1.2592 26.8 1.2614 27.0 1.2635
567 588 609 630 652
584 604 625 646 668
600 620 641 662 684
617 637 658 680 702
635 656 677 698 720
650 672 693 715 736
667 688 710 732 753
685 706 726 748 769
702 723 744 766 787
718 740 760 781 803
736 757 778 798 820
752 773 794 815 836
768 790 811 832 853
786 806 828 849 871
802 824 845 866 887
820 842 862 883 904
836 858 879 900 921
854 875 896 918 938
871 892 913 935 956
889 910 931 952 974
27.2 1.2657 27.4 1.2677 27.6 1.2699 27.8 1.2720 28.0 1.2742
674 694 716 736 758
689 711 732 753 775
706 727 749 770 792
723 744 766 786 808
742 762 782 804 825
758 779 800 821 843
775 795 817 838 860
790 812 833 853 875
808 829 850 870 892
824 845 866 886 908
841 863 884 905 926
858 879 901 922 943
875 896 918 938 960
892 914 935 956 978
909 926 942 959 977 996 930 952 973 994
28.2 1.2764 28.4 1.2785 28.6 1.2807 28.8 1.2828 29.0 1.2850
780 800 822 844 865
797 818 839 861 882
813 834 856 877 899
830 851 872 894 916
847 869 890 911 933
865 886 907 929 950
881 902 924 945 967
897 914 918 936 940 957 961 978 98313000
929 952 973 994 016
29.2 1.2871 29.4 1.2892 29.6 1.2914 29.8 1.2936 30.0 1.2957
887 909 930 952 974
904 925 947 969 991
30.2 1.2979 30.4 1.3001 30.6 1.3023 30.8 1.3045 31.0 1.3067
99613013 018 035 039 057 061 079 084 101
030 051 073 095 117
046 069 090 112 134
064 086 108 130 152
081 103 125 147 169
31.2 1.3089 31.4 1.3111 31.6 1.3134 31.8 1.3156 32.0 1.3178
106 128 150 172 194
123 145 167 190 212
139 162 184 206 228
157 179 201 224 246
175 197 219 241 264
32.2 1.3200 32.4 1.3223 32.6 1.3246 32.8 1.3269 33.0 1.3291
217 240 262 285 307
235 258 280 303 325
251 274 297 320 342
269 292 314 336 360
33.2 1.3314 33.4 1.3336 33.6 1.3360 33.8 1.3383 34.0 1.3406
330 353 377 400 423
348 371 394 417 440
365 388 411 434 458
383 405 428 451 474
3000 021 042 064 086
016 037 059 080 102
033 055 076 098 120
050 072 092 114 136
067 089 110 132 153
085 106 128 150 172
103 125 147 168 190
3005 026 048 070 092
022 044 066 087 109
037 060 082 103 125
055 077 099 121 142
072 094 116 138 159
090 112 134 156 177
108 130 152 174 195
124 146 168 191 212
142 164 186 207 230
158 180 202 224 248
175 197 219 241 263
194 216 238 259 282
212 234 256 278 300
097 119 141 163 186
114 137 158 179 202
131 153 175 197 220
i47 170 192 213 236
165 187 209 231 254
182 204 226 249 271
200 223 245 267 289
218 240 263 285 307
234 257 279 301 323
252 275 297 319 341
268 290 313 335 357
285 307 330 352 374
303 325 347 370 392
322 344 366 389 410
192 214 237 259 281
208 231 253 275 298
224 247 269 291 314
242 265 287 309 332
258 281 303 326 349
276 299 321 344 366
293 316 338 361 383
312 334 357 380 402
329 352 375 397 420
345 368 391 413 436
363 386 408 430 452
380 402 425 447 469
396 419 442 464 486
414 436 459 482 504
432 455 477 500 523
287 309 332 355 377
304 326 349 372 396
321 344 366 389 412
337 360 383 406 428
355 378 400 423 446
371 394 417 439 463
389 412 434 457 480
406 429 452 474 497
424 448 470 493 516
442 465 488 511 534
458 481 505 528 551
476 499 523 545 568
492 516 539 561 583
509 526 545 532 549 556 572 577 599
401 423 447 469 493
418 441 464 486 510
435 457 480 503 526
451 474 496 519 543
469 491 514 537 561
486 509 531 554 577
503 526 549 573 595
519 542 566 590 612
537 561 585 608 630
556 579 603 626 649
574 596 619 641 665
590 606 612 628 636 651 658 681
INDUSTRIAL AND ENGINEERING CHEMISTRY
VOL. 1, NO. 1
TABLE 11. DENSITY (GRAMS/ML.) OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25' C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO) CaO,
2.0
%
2.1
2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
34.2 1.3429 34.4 1.3451 34.6 1.3475 34.8 1.3498 35.0 1.3521
446 469 492 515 538
463 486 509 532 556
481 504 526 550 574
497 521 544 567 590
515 539 563 586 609
533 556 580 603 626
550 574 597 620 644
566 589 613 636 660
584 607 631 654 677
600 624 648 671 694
618 642 665 688 712
636 659 682 706 729
35.2 1.3545 35.4 1.3569 35.6 1.3592 35.8 1.3615 36.0 1.3638
562 586 609 632 656
580 603 626 650 674
597 620 644 667 692
614 638 662 686 709
633 656 680 704 727
650 674 697 720 744
667 691 714 738 761
683 707 730 754 777
701 725 748 771 795
717 741 764 788 812
735 759 782 806 829
753 771 775 793 799 823
36.2 1.3662 36.4 1.3686 36.6 1.3710 36.8 1.3735 37.0 1.3758
680 703 727 752 776
698 721 745 770 794
715 739 763 788 812
733 756 781 806 830
751 774 799 824 848
769 792 817 841 866
785 809 833 858 882
801 825 849 874 898
818 841 866 890 913
836 853 859 883 907
37.2 1.3782 37.4 1.3806 37.6 1.3831 37.8 1.3855 38.0 1.3879
800 824 849 873 897
818 842 866 890 915
836 860 884 908 933
854 878 902 926 951
872 896 920 944 969
890 906 922 937 914 931 946 938 955 970 962 979 987 4003
655 678 701 725 748
674 687 697 711 720 744
39.0 1.4002 020 037 056 073 092 062 087 111 136 161
081 098 105 123 130 154 179
39.2 1.4027 39.4 1.4051 39.6 1.4076 39.8 1.4101 40.0 1.4126
045 069 094 119 144
P205~% 4.0
4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
CaO,
% 5
15.4 1.1830 15.6 1.1848 15.8 1.1865 880 16.0 1.1883 899 16.2 1.1901 917 934 16.4 1.1920 935 952 16.6 1.1938 953 971
1956
17.21199312010 17.4 1.2012 029 17.6 1.2031 048 17.8 1.2050 066 18.0 1.2069 085
028 046 065 084 104
045 064 083 101 121
061 080 099 116 118 135 136 153
18.2 1.2088 18.4 1.2107 18.6 1.2126 18.8 1.2146 19.0 1.2165
106 124 143 162 181
123 142 160 179 198
140 158 177 197 216
156 175 194 213 232
173 192 211 230 249
190 209 228 244 248 263 267 273
19.2 1.2185 19.4 1.2204 19.6 1.2224 19.8 1.2242 20.0 1.2262
201 221 240 259 278
218 237 257 276 295
235 254 273 292 312
251 270 289 309 328
268 287 306 326 345
286 305 324 343 362
302 321 339 358 378
318 337 356 373 375 391 394 409
20.2 1.2281 20.4 1.2300 20.6 1.2319 20.8 1.2338 21.0 1.2358
298 317 337 357 376
314 334 354 373 393
332 352 371 391 410
348 368 387 407 426
364 382 384 ,402 404 421 424 441 443 461
398 418 437 457 477
413 432 452 472 492
429 449 469 489 509
447 466 487 503 507 523 527 543
CHEMICAL AND ENGINEERING DATA SERIES
107
c.
TABLE II. DENSITY (GRAMS/ML.J OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O IContd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND Cao)
P205
9
%
4.0
cao, % 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7
21.2 1.2378 21.4 1.2398 21.6 1.2417 21.8 1.2438 22.0 1.2458
396 416 436 456 476
413 433 452 472 491
429 449 469 489 509
446 466 486 506 526
463 483 503 523 543
481 501 520 540 559
498 518 538 557 577
512 532 552 572 592
529 549 569 589 609
547 567 587 607 627
562 582 602 622 642
578 598 618 638 657 658 677
22.2 1.2477 22.4 1.2497 22.6 1.2517 22.8 1.2537 23.0 1.2558
495 515 535 555 576
511 531 551 572 592
529 549 569 588 609
546 566 586 607 627
563 582 602 622 643
579 600 620 640 661
597 617 637 657 677
612 632 652 672 693
629 649 669 690 710
647 667 687 707 727
662 683 703 723 743
678 699 719 739 759
696 717 737 758 778
714 734 754 775 791 796 812
23.2 1.2579 23.4 1.2599 23.6 1.2619 23.8 1.2640 24.0 1.2660
597 617 638 658 678
613 633 654 674 694
630 650 671 692 712
647 667 688 709 729
664 684 705 725 745
681 701 721 742 762
698 718 739 759 778
714 734 754 774 794
731 751 771 791 812
748 769 789 810 830
764 785 805 826 846
780 801 822 843 862
799 820 841 861 880
817 837 858 878 898
24.2 1.2681 24.4 1.2702 24.6 1.2722 24.8 1.2742 25.0 1.2764
699 720 740 761 782
715 735 756 777 798
732 752 773 794 815
749 770 791 812 832
766 787 807 828 849
782 804 824 845 866
800 821 842 862 883
816 837 858 878 899
833 853 874 894 916
851 871 892 913 934
867 887 908 930 951
883 904 925 946 967
902 920 938 957 976 923 940 959 978 997 943 961 979 998 964 985
25.2 1.2784 25.4 1.2804 25.6 1.2826 25.8 1.2847 26.0 1.2868
802 823 844 865 886
818 839 860 881 902
836 856 877 898 919
852 874 895 916 936
870 891 912 932 953
887 907 928 950 971
904 924 946 967 987 3008 030 052 074 094
025 046 068 090 110
042 063 085 106 128
060 081 102 124 144
076 093 110 098 114 120 136 141 163
132 154 175 196 218
150 166 184 171 187 192 208 214 235
27.2 1.299613014 27.4 1.3017 036 27.6 1.3039 056 27.8 1.3061 078 28.0 1.3082 100
030 052 073 094 116
046 068 089 111 132
064 086 107 128 150
081 103 125 146 168
098 119 141 162 184
115 137 159 180 201
28.2 1.3103 28.4 1.3125 28.6 1.3147 28.8 1.3168 29.0 1.3190
121 143 165 186 208
137 159 181 202 224
154 176 198 220 242
171 193 215 237 259
189 211 233 255 276
205 227 249 271 292
223 239 245 261 267 289 310
29.2 1.3212 29.4 1.3234 29.6 1.3256 29.8 1.3278 30.0 1.3300
230 252 274 296 318
246 264 281 268 286 302 290 306 324 312 329 346 335 352 368
30.2 1.3322 30.4 1.3348 30.6 1.3366 30.8 1.3389 31.0 1.3410
340 362 384 406 428
356 377 399 422 444
833 854 875 896 917
851 873 894 915 934 936 954
298 314 320 336 342 364
374 391 396 417 440
31.2 1.3432 450 466 31.4 1.3455 472 31.6 1.3477 493 31.8 1.3500 32.0 1.3523 32.2 1.3545
108
INDUSTRIAL AND ENGINEERING CHEMISTRY
VOL. 1, NO. 1
TABLE 111. SPECIFIC CONDUCTANCE (Ohm-1 Cm.-l) OF SOLUTIONSIN THE SYSTEM CaO-P205-H20 AT 25O C. (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO 1
p2°5p
%
0.0
0.0 0.1 0.2 0.4 0.6 0.8 1.0
0.0000 0.0027 0.0044 0.0071 0.0094 0.0114 0.0134
040 062 041 081 057 054 097 079 073
1.2 1.4 1.6 1.8 2.0
0.0152 0.0168 0.0185 0.0200 0.0215
112 127 142 157 173
096 110 122 134 148
2.2 2.4 2.6 2.8 3.0
0.0228 0.0244 0.0259 0.0275 0.0290
3.2 3.4 3.6 3.8 4.0
0.1
0.2
0.4
0.5
087 100 112 123 134
084 097 107 117 127
095 104 112 110 123 120 119
188 162 204 177 219 191 235 204 250 217
146 158 171 184 197
137 148 159 172 183
132 142 152 162 174
128 138 148 157 166
0.0305 0.0320 0.0335 0.0350 0.0365
265 232 281 247 294 262 309 276 323 291
211 225 239 254 268
196 209 222 236 250
184 196 207 223 237
177 173 187 183 198 193 210 203 223 214
4.2 4.4 4.6 4.8 5.0
0.0381 0.0396 0.0411 0.0427 0.0442
337 352 366 381 396
305 319 334 349 363
282 296 310 324 338
263 249 236 277 263 248 291 276 262 305 290 274 319 303 286
5.2 5.4 5.6 5.8 6.0
0.0458 0.0474 0.0489 0.0505 0.0520
412 426 442 457 472
378 394 408 423 438
352 366 380 394 409
333 317 347 331 360 344 374 358 388 372
6.2 6.4 6.6 6.8 7.0
0.0536 0.0552 0.0568 0.0583 0.0600
488 453 503 468 519 484 536 500 551 516
7,2 7.4 7.6 7.8 8.0
0.0616 0.0632 0.0648 0.0665 0.0682
567 532 498 474 453 432 415 400 583 548 514 489 467 446 428 412 600 564 529 503 481 459 441 425 616 580 545 517 493 473 453 437 633 596 561 533 507 486 466 450
8.2 8.4 8.6 8.8 9.0
0.0698 0.0715 0.0731 0.0748 0.0765
650 667 683 700 717
613 629 645 662 679
577 548 522 592 563 536 609 578 551 626 594 566 642 610 581
9.2 9.4 9.6 9.8 10.0
0.0781 0.0798 0.0816 0.0832 0.0849
734 750 767 785 802
695 712 729 746 762
658 675 692 708 725
626 642 657 674 691
597 613 629 646 663
10.2 0.0866 819 10.4 0.0883 836 10.6 0.0900 853 10.8 0.0917 871 11.0 0.0933 888
779 796 813 831 848
742 759 775 792 810
707 724 740 757 775
11.2 0.0951 906 865 11.4 0.0968 923 882 11.6 0.0985 940 900 11.8 01003 0958 917 12.0~0:102O)O976 934
1956
0.3
423 403 437 417 452 431 467 445 482 460
827 792 844 809 861 825 879 843 895 860
0.6
0.7
127 136 147 155 163
226 238 250 262 275
0.8
CaO, % 0.9 1.0
1.1 1.2 1.3 1.4
1.5
1.6
1.7
1.8
1.9
2.0
135 146 145 153 152 160 159 158 167 175 184 193 203
165 173 181 189 198
164 172 179 178 187 186 185 196 194 193
218 212 229 222 240 233 251 244 264 256
208 217 227 238 248
204 202 213 210 223 218 233 227 242 237
168 178 187 197 207
199 208 215 224 232
205 213 220 218 229 226
299 288 312 300 325 313 338 326 352 339
276 288 301 313 326
268 259 252 280 271 263 292 283 275 303 294 286 316 306 297
247 257 267 278 289
242 251 262 266 283
237 247 256 261 276
234 243 252 257 271
230 238 247 253 266
243 249 262
258
365 378 392 405 418
338 351 363 376 388
327 317 339 329 352 341 364 352 376 364
309 320 332 343 354
301 312 323 334 345
294 304 315 326 337
287 298 308 319 329
282 292 302 312 322
276 286 296 306 316
272 282 292 301 310
267 277 273 286 282 295 291 304 300
387 399 411 423 434
376 388 399 411 422
366 377 388 400 411
356 367 378 389 400
348 339 359 350 369 361 380 372 391 382
332 343 353 363 374
326 336 346 356 366
320 314 329 323 339 333 348 342 358 351
500 514 527 542 557
478 462 446 492 475 458 504 487 470 518 500 483 533 513 496
434 446 458 469 481
423 434 446 457 468
411 422 433 444 455
401 392 412 402 423 413 434 424 444 434
384 394 404 414 424
376 367 386 377 396 387 406 396 416 406
360 369 379 388 397
354 363 372 382 391
346 355 364 372 381
572 587 601 617 632
547 562 576 591 607
527 541 555 569 584
509 492 480 522 505 492 536 518 504 550 530 517 564 543 529
466 477 488 500 513
455 466 477 487 498
444
455 466 476 486
435 445 455 466 476
426 436 446 456 466
407 417 426 436 445
400 409 418 427 437
391 400 409 418 427
679 648 695 664 712 680 729 696 746 712
622 638 653 669 685
598 612 628 643 668
578 592 606 621 636
556 542 570 556 584 569 598 583 6 i 2 596
526 511 538 524 551 536 564 550 577 562
497 509 521 533 545
486 497 508 519 531
475 465 455 446 437 485 475 464 455 447 495 485 474 464 456 506 495 484 474 466 517 506 493 483 475
763 729 701 779 745 717 796 761 733 814 778 750 831 795 766
674 688 703 720 736
650 665 681 696 712
625 640 654 669 684
557 570 583 596 610
542 555 567 580 592
529 517 504 541 529 516 553 541 527 566 553 539 578 565 550
385 398 412 426 439
352 364 377 390 402
610 591 624 605 638 619 652 632 666 645
575 588 602 615 628
416 426 436 446 455
284 294
309 302 318 311 327 319 336 328 345 337
493 503 514 525 537
485 494 505 516 527
CHEMICAL AND ENGINEERING DATA SERIES
109
TABLE 111. SPECIFIC CONDUCTANCE (Ohm-' Cm.-') OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaOl
p205,
%
CaO,
0.0
0.1
0.2
0.3 913 930 948 0965 0982
1 10
0.4
0.5
877 847 894 864 912 881 930 899 946 915
0.6 0.7 812 829 845 862 879
0.8
0.9
%
1.0
1.1
1.2 1.3
1.4
1.5
1.6
1.7
1.8
782 751 726 699 800 768 742 714 816 785 759 729 833 802 775 744 850 819 791 760
681 695 709 724 738
660 674 688 702 716
642 655 669 683 697
624 637 650 663 677
606 619 632 646 659
592 604 616 629 642
577 590 602 615 627
563 549 538 575 561 550 587 573 562 600 584 574 612 596 585
13.2 13.4 13.6 13.8 14.0
0.1126 082 039 0.1143 100 057 0.1161 117 075 0.1178 135 093 0.1196 152 110.
000 0964 017b82 036 000 055 017 072 035
932 950 0966 0982 000
14.2 14.4 14.6 14.8 15.0
0.1213 0.1232 0.1250 0.1267 0.1286
170 188 205 223 240
128 145 163 180 198
089 106 125 142 160
053 070 087 105 122
018 036 052 070 087
15.2 15.4 15.6 15.8 16.0
0.1303 0.1321 0.1338 0.1356 0.1372
258 276 293 310 327
216 177 232 194 250 212 266 229 284 246
139 156 174 192 209
104 121 138 155 171
069 086 103 120 137
037 054 071 087 104
004 020 037 053 069
16.2 16.4 16.6 16.8 17.0
0.1390 345 0.1408 362 0.1425 379 0.1443 397 0.1459 414
301 319 336 353 370
263 280 297 314 330
225 242 259 276 293
188 205 221 237 253
153 171 187 203 219
121 137 153 169 186
086 102 118 134 150
052 068 084 100 116
021 037 053 068 084
17.2 17.4 17.6 17.8 18.0
0.1476 0.1494 0.1510 0.1527 0.1544
386 403 420 437 453
347 363 380 395 412
309 270 326 286 342 303 358 318 374 334
236 201 252 217 267 233 283 248 299 264
166 182 198 214 229
131 147 162 178 194
100 116 131 147 162
072 088 102 118 134
043 058 074 089 103
015 030 044 060 074
18.2 18.4 18.6 18.8 19.0
0.1561 514 469 428 0.1577 531 486 444 0.1594 547 503 460 0.1610 564 518 475 0.1626 580 533 490
389 405 421 436 451
350 365 382 397 412
315 331 346 361 376
280 245 209 295 260 224 310 275 239 325 291 254 340 306 269
177 193 208 223 237
149 163 178 193 208
119 134 149 164 179
089 103 117 132 146
063 077 092 106 120
036 051 065 079 093
013 027
19.2 19.4 19.6 19.8 20.0
0.1643 596 548 0.1658 612 564 0.1674 627 581 0.1690 643 596 0.1706 658 611
506 522 536 552 566
466 481 496 510 524
428 443 458 473 487
391 406 420 434 449
354 369 384 398 412
320 335 349 364 378
284 299 313 328 342
251 222 266 236 281 250 295 264 310 279
194 209 223 237 250
161 175 190 204 218
134 149 164 178 192
107 122 136 150 164
20.2 20.4 20.6 20.8 21.0
0.1722 0.1737 0.1754 0.1769 0.1785
674 689 703 717 732
626 581 640 595 656 609 670 623 684 637
539 554 567 581 595
501 516 530 543 557
463 477 491 505 518
426 439 453 467 481
392 406 419 433 446
356 370 383 397 410
324 337 350 363 377
294 264 307 278 320 291 334 304 347 318
232 246 259 272 286
21.2 21.4 21.6 21.8 22.0
0.1800 0.1815 0.1831 0.1845 0.1859
747 762 775 789 803
699 713 727 742 755
652 666 679 692 705
609 624 637 650 663
570 584 598 612 625
532 546 559 573 586
494 460 424 390 507 474 437 404 520 487 450 417 534 500 463 430 547 512 471 443
360 374 386 399 411
331 343 356 368 381
22.2 22.4 22.6 22.8 23.0
0.1873 0.1887 0.1900 0.1914 0.1927
817 831 843 857 871
768 782 796 809 822
718 731 744 756 769
676 688 701 714 727
638 651 664 676 689
599 561 524 480 456 424 612 574 537 494 468 436 625 586 550 506 480 449 636 599 563 518 493 461 648 611 575 531 506 473
394 406 418 431 442
23.2 23.4 23.6 23.8 24.0
0.1940 875 0.1953 889 0.1965 901 0.1978 914 0.1991 927
824 837 850 862 876
780 792 805 817 830
739 699 752 710 765 722 778 735 785 748
431 448 464 481 498
897 914 932 948 0966
c
INDUSTRIAL AND ENGINEERING CHEMISTRY
655 666 679 692 704
866 884 901 917 935
620 631 643 656 667
1.9
2.0
835 851 868 884 902
808 824 841 857 874
775 792 808 824 841
753 768 784 800 816
732 746 761 776 792
712 691 672 726 704 686 740 718 700 755 733 713 769 747 727
655 668 682 695 708
641 654 667 680 694
625 637 650 663 676
609 621 634 646 659
597 609 622 634 646
919 936 953 0971 0988
890 907 923 939 956
858 875 890 907 924
832 848 864 880 897
806 822 837 853 869
784 799 814 829 845
762 776 791 806 821
741 755 770 784 799
722 736 750 764 778
707 720 734 747 761
689 702 716 729 743
672 684 697 710 723
658 671 684 696 709
913 930 945 962 0977
885 901 917 933 950
860 875 890 906 922
836 851 866 882 896
813 828 843 858 872
792 806 821 835 850
775 789 802 817 831
756 769 783 796 810
736 750 762 776 789
721 734 747 760 773
912 927 943 958 0973
887 903 918 933 948
864 845 824 803 786 879 860 838 817 799 894 873 851 830 812 908 887 865 843 825 924 902 879 857 838
584 594 606 619 631
543 555 566 580 591
518 530 543 555 566
4 83 494 505 517 529
916 930 945 960 0974
893 906 921 935 949
870 884 898 912 925
083 097 111 124 137
058 072 086 099 112
033 047 060 074 086
008 0986 022\0999 035 012 048 026 061 038
206 176 219 190 233 203 246 216 259 229
150 163 176 189 201
125 138 150 163 176
099 112 124 137 150
074 087 099 112 124
051 064 076 089 101
300 313 326 338 351
272 285 297 309 321
241 254 267 280 292
215 227 239 251 263
188 200 212 224 236
162 174 186 198 209
136 149 160 172 184
113 125 137 149 161
364 376 388 400 412
335 347 360 372 384
305 276 248 317 287 260 329 299 272 341 311 283 353 325 295
221 196 233 207 244 219 256 230 269 242
172 184 196 207 218
452 424 464 434 476 446 487 458 499 470
3 95 369 4 07 382 419 394 431 405 442 416
851 865 878 892 904
041
055 069
339 350 362 374 384
308 320 332 344 355
282 294 306 317 327
255 230 267 242 278 254 290 265 300 276
VOL. 1, NO. 1
TABLE 111. SPECIFIC CONDUCTANCE (Ohm-' Cm-1) OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO)
p2059
CaO,
%
0.0
0.1
0.2
0.3
0.4
0.5
0.6 0.7
24.2 24.4 24.6 24.8 25.0
0.2003 0.2015 0.2026 0.2038 0.2050
1940 1952 1964 1977 1988
888 901 913 925 938
842 855 867 880 892
797 810 822 835 847
760 772 784 797 810
716 729 741 753 766
680 692 704 716 727
642 654 666 678 690
25.2 25.4 25.6 25.8 26.0
0.2061 0.2072 0.2083 0.2093 0.2104
000 013 025 036 047
1950 1962 1974 1985 1997
904 916 928 939 950
860 872 884 896 908
822 834 846 859 871
778 790 802 814 826
739 751 763 776 787
26.2 26.4 26.6 26.8 27.0
0.2114 0.2124 0.2134 0.2143 0.2153
838 850 861 872 884
27.2 27.4 27.6 27.8 28.0
0.2162 0.2171 0,2180 0.2189 0.2198
28.2 28.4 28.6 28.8 29.0
0.2206 0.2214 0.2222 0.2230 0.2238
156 165 173 181 188
116 125 133 142 150
070 080 089 098 107
028 038 048 057 066
29.2 29.4 29.6 29.8 30.0
0.2245 0.2252 0.2258 0.2265 0.2271
196 203 210 216 221
158 165 172 178 185
115 122 130 136 142
30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0
0.2285 0.2297 0.2307 0.2315 0.2322 0.2328 0.2332 0.2334 0.2335 0.2334
236 249 260 270 277 283 286 288 288 286
197 207 216 225 232 238 243 245 245 245
35.5 36.0 36.5 37.0 37.5
0.2331 0.2327 0.2320 0.2311 0.2301
284 280 276 269 263
244 242 240 236 231
1.1
1.2 1.3
1.4
1.5
1.7
1.8
1.9
2.0
602 614 626 638 650
578 590 601 613 6 24
541 552 564 576 587
510 521 533 544 555
481 492 504 516 527
453 464 476 488 499
427 396 366 439 407 377 450 418 389 461 429 400 472 440 410
339 350 361 372 382
312 323 334 345 356
287 298 309 319 329
702 714 726 738 749
662 674 686 697 708
636 647 658 669 680
599 610 621 632 643
566 577 589 600 611
538 549 560 570 581
510 521 532 543 553
483 494 504 514 525
451 461 471 482 492
421 432 442 452 463
394 404 415 425 435
366 376 386 397 406
340 350 360 370 380
799 810 821 832 844
761 772 784 795 806
720 732 743 754 765
691 702 712 722 732
654 665 676 686 696
622 632 642 652 662
591 601 611 622 632
564 574 584 594 604
535 545 555 564 574
502 512 522 532 542
474 483 492 502 512
445 455 465 475 484
416 426 436 446 455
389 399 408 417 426
895 906 916 926 936
855 865 876 886 896
817 827 838 849 859
776 786 797 807 817
74 2 752 762 772 781
706 716 727 737 746
672 683 692 702 711
641 651 661 670 679
613 623 631 640 649
583 592 601 610 618
551 560 569 578 586
521 531 540 550 558
494 503 512 521 529
465 475 483 492 500
436 444 453 461 469
947 1957 1966 1976 1986
907 916 926 936 945
869 879 888 898 907
828 838 849 858 867
791 800 809 819 828
756 766 776 785 793
721 730 739 748 757
689 697 706 714 723
658 666 675 683 690
627 635 643 651 659
595 603 612 620 628
567 575 583 591 598
538 546 554 562 570
509 516 525 533 540
478 486 494 502 509
075 083 091 099 105
037 955 916 045 1963 925 053 1972 934 061 019'1980 941 068 02711987 950
876 885 893 902 910
837 845 854 861 870
802 810 819 826 834
766 775 783 791 800
730 738 746 754 761
699 706 714 721 728
666 674 681 688 695
635 643 650 657 665
606 614 621 628 635
578 586 593 600 607
548 555 562 569 576
516 524 530 537 544
158 170 179 188 195 200 204 206 207 207
119 131 141 149 156 160 164 166 168 168
083 044 094 058 105 069 114 078 121 083 126 086 129 088 130 090 130 090 130 090
888 904 918 930 939 943 947 950 950 950
851 867 880 891 900 905 909 912 914 915
818 836 850 860 867 874 879 882 884 885
779 794 807 820 830 838 844 846 849 850
744 760 774 786 797 806 813 817 820 821
711 726 739 752 763 771 777 781 784 785
682 696 711 723 732 739 744 747 750 750
651 665 678 689 699 706 712 715 717 719
624 639 653 664 672 678 683 686 689 690
593 608 621 634 643 650 655 660 661 664
561 576 589 600 610 617 622 625 628 630
206 205 201 197 191
166 164 161 156
128 126 123 120
950 949 946 945 941
915 914 912 910 908
885 886 883 880 879
850 849 847 845 842
821 820 819 815 811
785 784 781 778 775
750 750 749 745 743
719 718 716 715 711
690 690 688 686 684
664 664 662 660 659
630 630 629 627 625
038 000 1966 043 006 1975 047 011 1979 050 014 1982 052 016 1984 053 017 1984 052 051 050 047 045
017 016 015 013 010
p2°5*
%
2.0
2.1
2.2
2.3
2.4
2.5
2.6
0.9
%
1.0
089 086 085 082 150 115 079
0.8
2.7
2.8
1982 1980 1979 1976 1974
CaO,
%
2.9
3.0
3.1
3.2
3.3
3.4
3.5
1.6
3.6
3.7
3.8
3.9
4.0
6.8 0.0284 7.0 0.0294
1956
7.2 7.4 7.6 7.8 8.0
0.0302 0.0311 0.0319 0.0328 0.0337
298 306 315 324 333
302 310 318 313 327 321
8.2 8.4 8.6 8.8 9.0
0.0346 0.0355 0.0364 0.0372 0.0381
342 350 358 367 375
335 343 352 360 368
330 338 347 355 363
327 335 342 350 346 358 353
CHEMICAL AND ENGINEERING DATA SERIES
111
TABLE III. SPECIFIC CONDUCTANCE
(mrn-1
Crn.-l) OF SOLUTIONS IP THE SYSTEM CaO-P205-H20 AT 250 C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P205 AND CaO) CaO,
p2°51
%
2.0
9.2 0.0391 9.4 0.0400 9.6 0.0409 9.8 0.0418 10.0 0.0427
384 394 402 411 420
377 386 394 403 411
372 381 389 398 406
366 374 382 390 398
361 368 377 384 392
356 363 370 366 378 373 385 380 375
10.2 0.0437 10.4 0.0447 10.6 0.0456 10.8 0.0466 11.0 0.0475
429 438 447 456 460
420 429 438 447 456
414 422 431 439 447
406 414 422 430 438
400 407 415 422 431
393 400 408 416 424
387 395 402 409 417
382 389 396 403 411
384 391 398 395 405 402
11.2 0.0485 11.4 0.0494 11.6 0.0505 11.8 0.0516 12.0 0.0527
475 484 494 503 514
465 475 484 493 504
456 466 475 484 493
447 456 465 474 483
439 448 457 466 474
432 440 449 458 467
425 433 442 450 457
418 426 434 442 450
413 420 427 436 443
409 416 424 431 438
407 414 420 415 427 421 434 427 420
12.2 0.0538 12.4 0.0550 12.6 0.0562 12.8 0.0574 13.0 0.0585
524 536 547 568 570
514 525 536 546 557
503 513 524 534 545
493 503 513 524 534
483 493 502 512 522
476 485 494 503 513
466 475 484 493 502
458 467 476 485 494
452 460 468 477 486
446 454 462 470 478
442 448 455 463 471
13.2 0.0597 13.4 0.0609 13.6 0.0622 13.8 0.0634 14.0 0.0646
582 593 606 618 630
568 579 591 603 615
556 567 579 590 602
544 556 567 578 590
533 544 554 565 576
524 534 545 556 567
513 504 495 487 479 470 461 454 451 524 534 545 556
514 525 535 546
504 514 525 536
497 506 515 525
487 497 506 516
478 487 496 506
469 477 487 497
462 470 479 488
457 464 471 480
448 457 464 462 472 467
14.2 0.0658 14.4 0.0671 14.6 0.0684 14.8 0.0696 15.0 0.0709
642 655 667 680 692
627 640 652 664 676
614 626 638 650 662
601 613 625 636 648
588 599 611 622 634
577 588 600 611 622
566 577 588 600 611
556 566 577 588 600
546 556 567 577 588
535 546 556 566 576
526 537 547 557 567
516 526 536 546 556
506 516 526 536 546
498 507 517 527 537
489 499 508 518 527
481 490 499 509 518
474 482 490 500 509
476 484 493 485 502 494
15.2 0.0721 15.4 0.0734 15.6 0.0747 15.8 0.0760 16.0 0.0773
705 717 730 743 755
689 701 713 726 738
675 687 699 711 723
660 672 684 695 707
645 657 669 681 692
634 645 656 668 679
622 633 644 655 667
611 621 632 643 654
599 610 621 631 642
587 597 608 619 629
577 588 598 609 619
566 576 587 597 607
556 566 576 586 597
547 557 567 577 587
537 547 557 567 576
527 537 547 557 566
518 527 537 547 556
511 519 529 538 547
503 512 520 529 538
504 512 520 529
16.2 0.0786 16.4 0.0799 16.6 0.0812 16.8 0.0825 17.0 0.0838
767 781 794 807 820
751 764 777 789 802
735 747 759 772 784
719 731 743 756 768
704 716 728 739 752
691 702 714 725 737
678 689 700 712 723
666 676 687 699 709
652 664 674 685 696
640 650 661 672 683
629 640 650 661 671
617 628 638 648 658
607 617 627 637 647
598 608 618 628 637
586 596 606 617 627
575 585 594 604 614
565 575 584 594 603
557 566 575 585 594
547 556 566 575 585
538 548 556 565 574
17.2 0.0851 17.4 0.0865 17.6 0.0878 17.8 0.0892 18.0 0.0904
834 846 860 872 886
815 827 840 853 866
797 809 822 834 847
781 793 805 817 830
764 776 788 800 811
748 759 771 783 795
734 746 756 768 780
721 732 743 753 765
707 718 729 739 750
694 704 715 726 736
682 692 702 713 724
669 679 689 699 709
657 667 677 687 697
648 657 667 677 686
636 645 655 665 675
624 633 643 652 662
613 622 632 641 650
603 613 622 631 641
593 603 612 622 630
583 592 600 610 618
18.2 0.0918 18.4 0.0932 18.6 0.0945 18.8 0.0959 19.0 0.0972
899 912 924 937 950
878 891 904 916 928
860 872 885 897 909
842 855 867 879 891
824 836 848 859 871
807 819 831 842 854
792 803 815 827 838
776 787 799 810 821
761 772 783 794 805
747 758 769 780 790
734 745 755 766 776
719 730 740 750 761
707 717 727 737 747
696 706 716 726 735
684 693 702 712 722
671 681 690 699 709
660 669 679 688 697
650 659 668 677 686
639 648 657 665 674
627 636 645 654 662
19.2 0.0986 962 941 19.4 0.0999 975 953 966 0978 0990
922 935 947 959 972
903 915 927 939 951
883 895 906 918 930
866 877 889 901 912
850 861 872 884 896
832 843 855 866 877
816 826 837 848 859
801 812 822 833 844
787 797 807 818 829
771 782 792 802 812
757 767 777 787 797
745 754 764 774 784
732 742 751 761 770
719 728 738 748 757
707 716 726 736 745
695 705 714 723 732
683 692 700 709 718
671 681 689 698 707
i
888 898 909 920 931
870 881 892 902 913
855 865 876 886 896
839 849 860 870 880
823 833 843 853 863
807 817 826 836 846
794 804 813 823 832
780 789 799 809 818
767 776 786 795 805
754 764 773 782 791
741 750 759 768 777
727 736 745 754 763
716 725 733 742 751
1 12
026 039 051 063 075
003 015 027 039 051
0983 0995 007 020 032
963 975 0987 0999 010
942 953 965 976 0988
INDUSTRIAL AND ENGINEERING CHEMISTRY
924 936 947 958 970
2.7
907 918 929 941 952
2.8 2.9 3.0
3.1 3.2 3.3
2.2
20.2 0.1051 20.4 0.1064 20.6 0.1076 20.8 0.1089 21.0 0.1101
2.3 2.4 2.5 2.6
%
2.1
434 440 447 454 462
3.4 3.5
3.6 3.7
3.8 3.9
4.0
426 432 438 433 445 439 452 447 444
VOL. 1, NO. 1
TABLE 111. SPECIFIC CONDUCTANCE (mrn-1cm.-l)OF SOLUTIONSIN THE SYSTEM CaO-P205-H20 AT 2 9 C. (Contd.) (VALUES INTERPOLATED AX ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO) 00,%
pZ05,
%
2.0
2.1
2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1
3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
21.2 0.1113 21.4 0.1125 21.6 0.1137 21.8 0.1149 22.0 0.1161
087 063 100 075 111 087 122 099 134 111
044 056 067 079 091
022 034 045 057 068
OOO
011 022 034 046
906 917 927 938 948
890 900 911 921 931
873 883 893 903 913
856 866 876 886 896
842 851 861 871 881
828 837 847 856 866
814 824 833 842 851
800 810 819 827 836
786 795 804 814 824
772 781 789 798 807
760 769 777 786 795
22.2 0.1172 22.4 0.1184 22.6 0.1196 22.8 0.1207 23.0 0.1218
147 158 170 181 192
123 134 146 157 169
103 114 125 136 147
079 090 101 112 123
056 067 078 089 100
958 969 978 0988 0998
941 951 961 970 980
924 934 944 953 963
906 915 925 934 944
890 900 909 918 926
875 884 894 903 912
860 869 879 888 897
846 855 864 872 881
832 840 849 857 866
816 825 833 842 851
803 812 821 829 831
23.2 0.1230 23.4 0.1242 23.6 0.1254 23.8 0.1265 24.0 0.1276
204 215 226 236 247
181 192 203 214 225
157 168 179 191 201
134 145 156 167 177
112 123 134 144 154
090 101 112 123 123
068 079 089 100 110
047 057 067 077 088
028 038 048 058 067
009 019 029 039 049
935 944 954 964 974
922 932 942 950 960
905 914 924 932 940
890 899 907 916 925
875 883 892 900 909
860 869 877 886 894
845 854 862 871 880
24.2 0.1287 24.4 0.1298 24.6 0.1309 24.8 0.1319 25.0 0.1329
258 269 280 290 300
235 246 256 266 276
212 222 233 243 254
188 199 209 219 229
165 175 185 195 205
142 152 162 172 182
120 130 140 150 159
098 107 117 127 137
077 087 097 106 116
058 068 077 086 096
949 958 966 975 0984
933 942 950 959 966
917 926 934 943 951
902 911 919 927 936
888 896 904 912 920
25.2 0.1340 25.4 0.1350 25.6 0.1360 25.8 0.1370 26.0 0.1380
311 321 331 340 350
286 296 306 316 326
264 274 283 293 302
239 249 259 269 278
215 225 235 245 254
192 202 212 221 230
169 179 188 197 206
146 156 165 174 183
126 135 144 152 162
26.2 0.1389 26.4 0.1399 26.6 0.1408 26.8 0.1417 27.0 0.1426
360 369 378 387 396
335 344 353 362 371
312 321 330 339 348
287 296 305 314 322
263 272 281 290 298
239 247 256 265 273
215 224 232 241 250
192 201 209 208 226
27.2 0.1436 27.4 0.1444 27.6 0.1453 20.8 0.1461 28.0 0.1469
406 414 423 431 439
380 389 397 405 413
356 365 373 381 389
331 339 347 355 363
306 315 322 330 339
281 290 297 306 313
257 266 274 282 289
28.2 0.1478 28.4 0.1486 28.6 0.1494 28.8 0.1502 29.0 0.1509
447 455 464 471 478
421 429 436 444 450
397 404 412 419 426
371 378 386 393 400
346 354 361 367 375
321 329 336 343 350
29.2 0.1516 29.4 0.1524 29.6 0.1530 29.8 0.1537 30.0 0.1544
486 492 499 506 512
457 464 471 477 485
433 440 446 453 459
407 414 421 427 433
381 388 394 400 407
30.5 0.1561 31.0 0.1576 31.5 0.1589 32.0 0.1600 32.5 0.1610
528 542 556 568 579
499 512 525 536 545
474 488 499 510 519
447 460 472 484 492
33.0 0.1617 33.5 0.1622 34.0 0.1625 34.5 0.1628 35.0 0.1630
588 592 596 600 600
553 558 561 564 565
526 530 534 536 538
499 503 506 509 510
35.5 0.1630 36.0 0.1630 36.5 0.1629 37.0 0.1627 37.5 0.1625
600 600 599 596 594
565 565 565 562 560
538 538 537 535 534
L
0990 972 952 000 0982 963 010 0990 973 020 000 0983 030 01 0992 039 049 059 068 077
019 029 038 048 056
002 011 020 029 038
105 114 122 131 140
086 095 104 113 121
066 075 084 093 101
047 056 065 074 082
028 037 046 055 063
011 019 028 036 044
171 180 188 196 204
149 157 166 174 182
130 138 146 154 162
109 117 125 134 141
090 098 106 114 121
070 077 085 093 100
052 060 068 075 082
033 041 048 056 063
014 022 029 036 043
234 242 250 258 266
212 221 228 236 243
190 198 205 213 221
170 177 184 192 199
148 156 163 170 177
129 136 143 150 157
107 115 122 129 136
089 096 103 110 116
071 077 084 091 097
051 057 064 071 077
034 041 048 055 061
018 025 031 038 044
001 008 014 020 026
297 305 312 320 327
273 281 288 296 302
250 257 264 271 277
227 235 242 249 256
206 213 219 226 232
185 191 197 204 210
165 171 177 184 190
143 149 156 162 168
123 129 136 142 148
104 111 117 123 129
085 091 097 103 109
067 074 080 085 091
051 057 063 069 075
033 039 045 050 056
356 363 369 375 381
334 341 348 354 360
309 316 323 329 335
284 291 297 303 309
262 269 275 282 287
239 245 250 256 263
216 222 229 234 240
196 202 208 214 219
174 180 186 191 197
154 159 165 171 176
135 141 147 152 158
115 121 126 131 137
096 102 107 112 116
080 085 090 095 100
062 066 071 076 081
421 435 447 457 466
395 408 421 431 440
376 388 400 410 418
350 362 374 384 392
324 336 349 359 367
301 316 327 337 344
276 290 302 312 321
253 266 277 288 296
231 243 253 262 270
211 224 234 243 249
188 170 200 182 210 191 218 199 225 205
148 158 168 175 181
127 137 146 154 159
111 121 130 137 142
092 102
474 477 480 482 484
448 452 456 458 460
424 428 431 433 434
398 402 406 409 410
374 378 382 384 385
350 355 358 360 361
327 332 335 337 339
303 309 312 315 316
276 280 283 285 286
255 259 261 264
230 235 236 239
510 485 510 485 510 484 509 483 507 481
460 460 460 459 457
435 435 435 433 431
410 410 410 409 406
386 361 340 316 385 361 339 385 360 385
111
119
210 185 164 212 188 215
38.0 0.1622 590 558 531 505 480 455 430
1956
CHEMICAL AND ENGlkEERlNG DATA SERIES
113
TABLE 111. SPECIFIC CONDUCTANCE (0tm-l Crn.-ll OF SOLUTIONSIN THE SYSTEM CaO-P205-H20 AT 25O C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaOl
p2°5*
%
4.3
4.4
4.5
4.6
4.7
CaO,
%
4.8
4.9
5.0
5.1
5.2
5.3
4.1
15.4 15.6 15.8 16.0
0.0504 0.0512 0.0520 0.0529
514 522
16.2 16.4 16.6 16.8 17.0
0.0538 0.0548 0.0556 0.0565 0.0574
531 540 549 557 566
527 535 543 550 545 558 552
17.2 17.4 17.6 17.8 18.0
0.0583 0.0592 0.0600 0.0610 0.0618
575 584 592 601 609
566 574 582 590 598
559 567 574 582 590
557 564 570 566 577 572 585 578
18.2 18.4 18.6 18.8 19.0
0.0627 0.0636 0.0645 0.0654 0.0662
618 627 636 644 652
606 614 623 632 641
598 606 615 623 631
591 599 606 614 621
19.2 19.4 19.6 19.8 20.0
0.0671 0.0681 0.0689 0.0698 0.0707
661 670 679 687 696
649 658 666 675 683
640 629 620 648 637 627 656 646 635 665 654 643 673 662 651
611 617 625 632 640
603 610 617 624 630
594 600 607 599 614 605 620 611
20.2 20.4 20.6 20.8 21.0
0.0716 0.0725 0.0733 0.0742 0.0751
705 713 721 730 739
692 700 709 717 726
681 690 698 706 714
670 678 686 695 703
659 667 675 683 691
648 656 663 672 680
638 646 654 661 669
627 635 643 650 658
618 625 632 640 647
21.2 21.4 21.6 21.8 22.0
0.0760 0.0769 0.0777 0.0786 0.0795
748 735 722 711 757 743 731 719 765 752 739 726 774 760 747 735 782 768 756 744
699 707 715 722 730
687 695 703 711 718
676 684 692 700 708
665 673 681 688 696
654 643 633 623 662 650 640 630 670 658 648 637 677 665 654 644 633 684 672 662 651 640
22.2 22.4 22.6 22.8 23.0
0.0803 0.0812 0,0821 0.0829 0.0837
791 777 799 785 807 793 815 801 824 810
764 772 781 788 796
752 738 759 746 767 754 775 762 783 770
726 734 742 750 758
716 723 731 738 746
704 711 719 726 734
692 699 707 714 721
680 687 694 701 709
23.2 23.4 23.6 23.8 24.0
0.0845 0.0854 0.0862 0.0871 0.0880
831 839 847 856 864
818 825 832 841 849
804 812 820 827 836
791 779 799 787 806 795 814 803 822 810
766 754 742 774 761 749 782 769 756 789 777 764 797 784 772
729 737 744 751 759
718 705 694 726 712 701 734 719 708 740 726 715 747 734 722
24.2 24.4 24.6 24.8 25.0
0.0888 0.0896 0.0904 0.0912 0.0920
872 857 880 865 888 873 896 881 904 889
843 851 859 866 874
830 818 804 792 778 837 825 812 799 786 844 833 819 806 793 852 840 826 814 800 859 847 834 820 807
25.2 25.4 25.6 25.8 26.0
0.0928 0.0936 0.0944 0.0951 0.0959
912 919 927 934 941
896 904 911 919 926
882 889 896 903 910
866 874 881 888 895
855 841 827 862 848 834 869 855 841 875 862 848 882 869 855
814 821 827 834 841
26.2 26.4 26.6 26.8 27.0
0.0966 949 933 0.0974 956 940 0.0981 963 947 0.0987 970 954 0.0994 977 961
918 925 931 938 944
902 909 916 922 929
888 895 901 907 914
849 854 861 867 874
~~
1 14
4.2
4.0
585 592 599 606 613
5.4
5.5
5.6
5.7
576 583 590 583 597 590 604 596
875 882 888 895 901
861 868 874 881 887
609 615 622 612 629 619 636 626
660 676 683 690 698
658 665 672 679 686
648 637 654 644 661 651 669 657 646 675 664 653 682 670 688 677 695 684 702 690 709 697
660 666 674 680 685
649 654 661 667 655 674 661
704 710 717 724 730
692 699 706 712 719
681 667 687 674 694 700
766 754 740 773 761 747 780 767 754 787 775 760 794 782 767
728 735 742 749 756
716 722 729 736 742
801 808 815 821 827
788 795 802 809 815
774 781 787 794 801
762 769 776 782 789
749 736 725 756 742 762 749 769 755 775
834 841 847 854 860
822 828 835 841 847
807 795 782 814 801 820 808 826 833
~~~
INDUSTRIAL AND ENGINEERING CHEMISTRY
VOL. 1, NO. 1
TABLE 111. SPECIFIC CONDUCTANCE (Ohm-' Cm.") OF SOLUTIONS IN THE SYSTEM CaO-P205-H2O AT 250 C. (cartdl (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF CaO,
p205.
%
4.0
4.1 4.2 4.3 4.4 4.5
967 974 980 0986 0993
951 957 964 970 976
936 942 948 954 960
920 926 932 938 944
4.6 4.7
907 913 919 925 931
t
28.2 0.1033 28.4 0.1039 28.6 0.1045 28.8 0.1050 29.0 0.1056
016 021 027 033 039
0999 004 010 016 021
29.2 0.1062 29.4 0.1066 29.6 0.1071 29.8 0.1676 30.0 0.1081
044 049 054 059 064
026 031 037 041 047
982 966 950 936 0988 971 956 942 0994 977 961 947 000 0983 966 953 005 0988 972 958
893 899 905 911 917
%
4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7
880 886 892 897 903
866 853 839 872 859 878 865 884 890
923 909 928 914 934 940 945
010 015 020
025 030 013
30.5 0.1092 076 058 041 31.0 0.1102 086 068 31.5 0.1111 096 32.0 0.119
TABLE IV. pH OF SOLUTIONS IN THE SYSTEM CaO-P205-H2O AT 25' C. (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF Pfls AND CaO)
Phosphoric acid solutions
P205, % 0,0000 0.0005 0.0010 0.0015 0.0022 0.003 0.004 0.006 0.008 3.57 3.40 3.28 3.12 3.01 3.69 pH 7.00 4.16 3.86 P2O5, % 0.010 pH 2.92
0.015 2.77
0.02 2.68
0.03 2.53
0.04 2.44
0.06 2.32
0.08 2.23
0.10 0.20 2.16 1.95
Solutions in the system CaO,
p2059
% 0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
%
0.8
0.9
1.0
2.45 2.16 1.94 1.79 1.57
2.34 2.07 1.90 1.64
2.52 2.23 2.42 2.02 2.16 2.31 2.45 1.73 1.82 1.92 2.03 2.15 2.28
1.1
1.2
1.3
1.4
1.5
0.3 1.83 2.60 0.4 1.75 2.32 0.5 1.68 2.15 2.85 0.6 1.63 2.02 0.7 1.59 1.92 4.8 1.55 1.84 0.9 1.52 1.78 1.0 1.49 1.72
2.60 2.38 2.22 2.78 2.10 2.57 2.02 2.41
1.2 1.4 1.6 1.8 2.0
1.43 1.39 1.35 1.31 1.28
1.64 1.57 1.52 1.47 1.42
1.88 1.78 1.69 1.62 1.57
2.18 2.03 1.91 1.82 1.74
2.56 2.32 2.15 2.02 1.92
2.67 2.44 2.26 2.54 2.11 2.36 2.62
2.5 3.0 3.5 4.0 5.0
1.21 1.15 1.09 1.04 0.96
1.32 1.24 1.18 1.12 1.02
1.45 1.35 1.27 1.21 1.09
1.58 1.47 1.37 1.30 1.16
1.73 1.59 1.48 1.39 1.24
1.87 1.71 1.59 1.49 1.33
2.06 1.85 1.70 1.58 1.39
2.24 1.99 1.81 1.67 1.48
6.0 0.88 0.94 7.0 0.81 0.87 8.0 0.75 0.80 9.0 0.69 0.73 10.0 0.63 0.68
1.00 0.91 0.84 0.78 0.71
1.06 0.97 0.89 0.82 0.75
1.12 1.02 0.94 0.86 0.79
1.19 1.08 0.98 0.90 0.83
1.26 1.14 1.04 0.95 0.86
1.33 1.40 1.46 1.53 1.20 1.27 1.32 1.39 1.09 1.15 1.20 1.26 1.00 1.04 1.09 1.14 0.91 0.95 0.99 1.04
1.61 1.45 1.31 1.19
1.68 1.51 1.37 1.24 1.08 1.12
1.76 1.56 1.41 1.29 1.17
1.83 1.62 1.46 1.33 1.22
1.93 1.70 1.52 1.39 1.26
11.0 0.58 0.61 0.65 0.69 0.73 0.76 0.80 0.84 0.88 0.91 0.94 0.98 1.02 1.06 1.10 1.15 0.52 0.56 0.59 0.63 0.66 0.70 0.73 0.77 0.80 0.83 0.86 0.90 0.93 0.97 1.01 1.05
12.0 13.0 14.0 15.0
1956
0.47 0.50 0.54 0.57 0.60 0.64 0.66 0.70 0.73 0.76 0.79 0.82 0.85 0.89 0.92 0.95 0.42 0.45 0.48 0.51 0.54 0.58 0.60 0.63 0.66 0.69 0.72 0.75 0.78 0.81 0.84 0.87 0.38 0.40 0.43 0.46 0.49 0.52 0.54 0.57 0.60 0.62 0.65 0.68 0.71 0.73 0.76 0.79
CHEMICAL AND ENOINEERINO DATA SERIES
1 15
TABLE IV. pH OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (Cartd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P2O5 AND CaO)
P2O5,
% 0.0
CaO,
%
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.54 0.56 0.48 0.50 0.42 0.44 0.36 0.38 0.30 0.32
16.0 17.0 18.0 19.0 20.0
0.33 0.28 0.23 0.19 0.14
0.35 0.30 0.26 0.21 0.16
0.38 0.33 0.28 0.23 0.18
0.41 0.35 0.30 0.25 0.20
0.43 0.38 0.32 0.27 0.22
0.46 0.40 0.35 0.29 0.24
0.48 0.43 0.37 0.32 0.26
0.51 0.45 0.39 0.34 0.28
21.0 22.0 23.0 24.0 25.0
0.10 0.05 0.01 -0.03 -0.08
0112 0.07 0.03 -0.02 -0.06
0.13 0.09 0.04 0.00 -0.05
0.15 0.11 0.06 0.01 -0.03
0.17 0.12 0.07 0.03 -0.02
0.19 0.14 0.09 0.04 0.00
0.21 0.16 0.11 0.06 0.01
0.18 0.13 0.08 0.03
26.0 27.0 28.0 29.0 30.0
-0.12 -0.16 -0.20 -0.24 -0.28
-0.10 -0.15 -0.19 -0.23 -0.27
-0.09 -0.14 -0.18 -0.22 -0.27
-0.08 -0.12 -0.17 -0.21 -0.26
-0.07 -0.11 -0.16 -0.20 -0.25
-0.05 -0.10 -0.14 -0.19 -0.24
-0.04 -0.08 -0.13 -0.18 -0.22
-0.02 -0.07 -0.12 -0.17 -0.21
31.0 32.0 33.0 34.0 35.0
-0.32 -0.37 -0.41 -0.44 -0.48
-0.31 -0.36 -0.40 -0.44 -0.48
-0.31 -0.35 -0.39 -0.43 -0.47
-0.30 -0.34 -0.38 -0.43 -0.47
-0.29 -0.33 -0.38 -0.42 -0.46
-0.28 -0.32 -0.37 -0.41
-0.27 -0.31 -0.36 -0.41 -0.45 -0.45
-0.26 -0.31 -0.35 -0.40 -0.45
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0.59 0.53 0.47 0.41 0.35
0.61 0.55 0.49 0.43 0.37
0.64 0.57 0.51 0.45 0.39
0.66 0.60 0.53 0.47 0.41
0.69 0.62 0.55 0.49 0.43
0.72 0.65 0.58 0.51 0.45
0.23 0.25 0.27 0.29 0.31 0.33 0.35 0.37 0.39 0.19 0.21 0.14 0.16 0.09 0.11 0.04 0.06
0.23 0.18 0.12 0.07
0.25 0.19 0.14 0.08
0.27 0.21 0.15 0.10
-0.01 -0.06 -0.11 -0.16 -0.20
0.01 -0.04 -0.10 -0.15 -0.19
0.02 -0.03 -0.08 -0.13 -0.18
0.03 -0.02 -0.07 -0.12 -0.17
0.05 -0.01 -0.06 -0.11 -0.16
0.06 0.01 -0.04 -0.10 -0.15
0.08 0.02 -0.03 -0.08 -0.14
0.09 0.04 -0.02 -0.07 -0.13
-0.25 -0.30 -0.34 -0.39 -0.44
-0.24 -0.29 -0.34 -0.39 -0.43
-0.23 -0.28 -0.33 -0.38 -0.43
-0.22 -0.27 -0.32 -0.37 -0.42
-0.21 -0.26 -0.31 -0.36 -0.41
-0.20 -0.25 -0.30 -0.35 -0.41
-0.19 -0.24 -0.30 -0.34 -0.40
-0.18 -0.23 -0.29 -0.34 -0.39
0.29 0.31 O.Q3 0.23 0.25 0.26 0.17 0.19 0.20 0.12 0.13 0.15
36.0 -0.52 -0.52 -0.51 -0.51 -0.51 -0.50 -0.50 -0.49 -0.49 -0.48 -0.48 -0.47 -0.46 -0.46 -0.45 -0.45 37.0 -0.56 -0.56 -0.56 -0.56 -0.55 -0.55 -0.55 -0.54 -0.54 -0.53 -0.53 -0.53 -0.52 -0.52 -0.51 -0.51 38.0 -0.60
p205.
%
1 16
1.5
1.6
1.7
5.0 6.0 7.0 8.0 9.0 10.0
2.28 1.93 1.70 1.52 1.39 1.26
2.02 1.77 1.58 1.43 1.31
11.0 12.0 13.0 14.0 15.0
1.15 1.05 0.95 0.87 0.79
16.0 17.0 18.0 19.0 20.0
CaO, 5 2.2 2.3
1.9
2.0
2.1
2.13 2.25 1.84 1.91 1.64 1.69 1.48 1.53 1.35 1.40
2.00 1.76 1.58 1.45
2.09 1.83 1.64 1.50
2.20 1.89 1.98 2.07 1.69 1.75 1.81 1.87 1.94 2.02 1.55 1.59 1.63 1.69 1.74 1.81 1.87 1.92
1.19 1.08 0.99 0.90 0.82
1.23 1.12 1.03 0.93 0.85
1.27 1.16 1.06 0.97 0.88
1.32 1.20 1.10 1.00 0.91
1.36 1.24 1.13 1.03 0.94
1.41 1.28 1.17 1.07 0.97
1.46 1.33 1.21 1.10 1.00
1.50 1.37 1.25 1.13 1.03
0.72 0.65 0.58 0.51 0.45
0.74 0.67 0.60 0.53 0.47
0.78 0.70 0.63 0.56 0.49
0.80 0.72 0.65 0.58 0.51
0.83 0.75 0.67 0.60 0.53
0.86 0.77 0.70 0.62 0.55
0.88 0.80 0.72 0.64 0.57
0.91 0.83 0.74 0.67 0.59
21.0 22.0 23.0 24.0 25.0
0.39 0.33 0.26 0.20 0.15
0.41 0.34 0.28 0.22 0.17
0.43 0.36 0.30 0.24 0.18
0.45 0.38 0.32 0.26 0.20
0.47 0.40 0.34 0.27 0.21
0.49 0.42 0.35 0.29 0.23
0.51 0.44 0.37 0.31 0.25
0.53 0.46 0.39 0.33 0.27
26.0 27.0 28.0 29.0 30.0
0.09 0.04 -0.02 -0.07 -0.13
0.11 0.12 0.14 0.05 0.07 0.08 -0.01 0.01 0.02 -0.06 -0.04 -0.03 -0.11 -0.10 -0.09
0.15 0.10 0.03 -0.02 -0.08
0.17 0.11 0.05 -0.01 -0.07
31.0 32.0 33.0 34.0 35.0
-0.18 -0.23 -0.29 -0.34 -0.39
-0.17 -0.22 -0.28 -0.33 -0.38
-0.13 -0.19 -0.25 -0.30 -0.36
-0.12 -0.18 -0.24 -0.29 -0.35
-0.15 -0.21 -0.27 -0.32 -0.37
1.8
-0.14 -0.20 -0.26 -0.31 -0.37
INDUSTRIAL AND ENGINEERING CHEMISTRY
2.4
2.5
2.6
2.7
2.8
2.9
3.0
1.55 1.59 1.41 1.45 1.28 1.32 1.17 1.20 1.06 1.09
1.64 1.50 1.36 1.24 1.13
1.69 1.54 1.40 1.28 1.16
1.74 1.58 1.44 1.31 1.20
1.79 1.63 1.49 1.35 1.23
1.84 1.67 1.52 1.39 1.27
0.94 0.97 0.85 0.88 0.77 0.79 0.69 0.71 0.62 0.64
1.00 0.91 0.82 0.74 0.66
1.03 0.94 0.85 0.76 0.68
1.06 0.97 0.88 0.79 0.71
1.09 1.00 0.91 0.82 0.74
1.12 1.02 0.93 0.84 0.76
1.15 1.05 0.96 0.87 0.78
0.55 0.48 0.41 0.34 0.28
0.57 0.50 0.43 0.36 0.30
0.59 0.52 0.45 0.38 0.31
0.61 0.54 0.47 0.40 0.33
0.63 0.56 0.49 0.42 0.35
0.66 0.58 0.51 0.44 0.37
0.68 0.60 0.53 0.46 0.38
0.70 0.62 0.55 0.48 0.40
0.19 0.13 0.06 0.01 -0.06
0.20 0.22 0.24 0.14 0.16 0.17 0.08 0.09 0.11 0.02 0.03 0.05 -0.05 -0.04 -0.02
0.25 0.19 0.12 0.06 -0.01
0.27 0.20 0.13 0.08 0.00
0.28 0.22 0.15 0.09 0.02
0.30 0.23 0.16 '0.11 0.03
0.31 0.25 0.18 0.12 0.04
0.33 0.26 0.19 0.13 0.06
-0.11 -0.16 -0.23 -0.28 -0.34
-0.10 -0.15 -0.22 -0.27 -0.33
-0.06 -0.12 -0.19 -0.24 -0.30
-0.05 -0.11 -0.18 -0.23 -0.29
-0.03 -0.09 -0.17 -0.22 -0.28
-0.02 -0.08 -0.16 -0.21 -0.27
-0.01 -0.07 -0.14 -0.19 -0.26
0.01 -0.06 -0.13 -0.18 -0.25
-0.08 -0.14 -0.21 -0.26 -0.32
-0.07 -0.13 -0.20 -0.25 -0.31
VOL. 1 , NO. 1
TABLE IV. pH OF SOLUTIONS IN THE SYSTEM CaO-P205-H20 AT 25O C. (Contd.) (VALUES INTERPOLATED AT ROUND WEIGHT PERCENTAGES OF P205 AND CaO)
p205.
%
1.5
1.6
1.7
1.8
1.9
2.0
2.1
CaO, % 2.2 2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
36.0 -0.45 -0.44 -0.43 -0.43 -0.42 -0.41 -0.40 -0.40 -0.39 -0.38 -0.37 -0.36 -0.35 -0.34 -0.33 -0.32 37.0 -0.51 -0.50 -0.50 -0.49 -0.49 -0.48 -0.47 -0.47 -0.46 -0.45 -0.45 -0.44 -0.43 -0.42 -0.41
p205.
% 3.0
3.1
3.2
3.3
3.4
3.5
3.6
CaO, % 3.7 3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
11.0 12.0 13.0 14.0 15.0
1.84 1.67 1.52 1.39 1.27
1.71 1.56 1.43 1.30
1.77 1.60 1.46 1.33
1.81 1.65 1.69 1.73 1.50 1.54 1.58 1.62 1.65 1.37 1.41 1.44 1.48 1.51 1.55 1.58
16.0 17.0 18.0 19.0 20.0
1.15 1.05 0.96 0.87 0.78
1.18 1.08 0.99 0.89 0.80
1.22 1.11 1.01 0.92 0.83
1.25 1.14 1.04 0.95 0.86
1.28 1.17 1.07 0.97 0.88
1.31 1.20 1.10 1.00 0.91
1.35 1.23 1.13 1.03 0.93
1.38 1.27 1.16 1.06 0.96
1.42 1.30 1.19 1.09 0.94
1.44 1.32 1.21 1.11 1.01
1.47 1.35 1.24 1.14 1.04
1.50 1.38 1.27 1.16 1.06
1.41 1.44 1.30 1.33 1.36 1.39 1.19 1.22 1.25 1.28 1.09 1.12 1.15 1.17
21.0 22.0 23.0 24.0 25.0
0.70 0.62 0.55 0.48 0.40
0.72 0.64 0.57 0.49 0.42
0.75 0.66 0.59 0.51 0.44
0.77 0.69 0.61 0.53 0.46
0.79 0.71 0.63 0.55 0.48
0.82 0.73 0.65 0.58 0.50
0.84 0.76 0.67 0.59 0.52
0.87 0.78 0.69 0.61 0.53
0.90 0.81 0.72 0.64 0.56
0.92 0.83 0.74 0.66 0.58
0.95 0.85 0.77 0.68 0.60
0.97 0.88 0.79 0.70 0.62
1.00 0.90 0.81 0.73 0.64
1.02 0.93 0.83 0.75 0.66
1.05 0.95 0.85 0.77 0.68
1.07 0.98 0.88 0.79 0.70
26.0 27.0 28.0 29.0 30.0
0.33 0.26 0.19 0.13 0.06
0.35 0.28 0.21 0.15 0.07
0.37 0.30 0.23 0.16 0.08
0.39 0.32 0.24 0.18 0.10
0.40 0.33 0.26 0.19 0.11
0.43 0.35 0.27 0.21 0.13
0.44 0.37 0.29 0.23 0.14
0.46 0.38 0.31 0.24 0.16
0.48 0.50 0.52 0.40 0.42 0.44 0.32 0.34 0.36 0.26 0.27 0.29 0.17 0.19 0.20
0.54 0.46 0.37 0.31 0.22
0.56 0.48 0.39 0.32 0.23
0.58 0.50 0.40 0.34 0.25
0.59 0.51 0.42 0.35 0.26
0.62 0.53 0.44 0.37
31.0 32.0 33.0 34.0 35.0
0.01 -0.06 -0.13 -0.18 -0.25
0.02 -0.04 -0.12 -0.17 -0.24
0.04 -0.03 -0.11 -0.16 -0.23
0.05 -0.02 -0.09 -0.15 -0.22
0.06 0.00 -0.08 -0.13
0.07 0.01 -0.07 -0.13
0.09 0.10 0.12 0.13 0.15 0.16 0.02 0.04 0.05 0.06 0.08 -0.06 -0.05 -0.03 -0.12
0.17
4.7
4.8
4.9
5.0
18.0 1.39 19.0 1.28 1.31 1.34 20.0 1.17 1.20 1.23
1.25
1.28
21.0 22.0 23.0 24.0 25.0
1.07 0.98 0.88 0.79 0.70
1.15 1.04 0.95 0.85 0.76
1.17 1.07 0.97 0.87 0.78
1.20 1.09 0.99 0.90 0.80
26.0 27.0 28.0 29.0
0.62 0.63 0.65 0.67 0.53 0.55 0.57 0.59 0.44 0.45 0.47 0.49 0.37 0.39 0.40
0.69 0.60 0.50
0.71 0.73 0.75 0.62 0.64
36.0 -0.32 -0.31 P205?
% 4.5
4.6
1.10 1.00 0.90 0.81 0.72
1.12 1.02 0.93 0.83 0.74
CaO, % 5.1 5.2
1.22 1.12 1.02 0.92 0.82
1.14 1.04 0.94 0.84
5.4
5.5
5.6
5.7
1.16 1.06 1.08 1.10 0.96 0.98 1.00 1.02 1.04 0.86 0.88 0.90 0.77
(10) Harned, H. S., Owen, B. B. “The Physical Chemistry of Electrolytic Solutions,” 2nd ed., pp. 317-18, Reinhold, New York,
LITERATURE CITED
2
(1) ikerlof, G., Teare, J. W., J. Am. Chem. SOC. 1855-68 (1937). (2) Bale, W. F., Bonner, J. F., Hodge, H. C., Adler, H., Wreath, A.R., Bell, K., lnd. Eng. Chem., Anal. Ed. 491-5 (1945). (3) Bassett. H., J r . , Z. anorg. Chem. 59, 1-55 (1908). (4) Bauer, N., “Physical Methods of Organic Chemistry,” (Weissberger, A., editor), vol. p. 77, Interscience, New York, 1945. (5) Christensen, J. H., Reed, R. B., Ind. Eng. Chem. 47, 1277-80 (1955). (6) Elmore. K. L., F a r r , T. D., Ibid., 32, 580-6 (1940). (7) Hamer, W. J., Acree, S. F., J. Research Natl. Bur. Standards 23, 647-62 (1939). (8) H a z e d , H. S . , Cook, M. A., J. Am. Chem. SOC.59, 1290-2 (1937). 2179-93 (1933). (9) Harned, H. S., E N e r s , R. W., Ibid.,
5
a
1956
5.3
1950. (11) Hildebrand, J. H., J. Am. Chem. S O C .847-71 ~ (1913). (12) Hill, W. L., Hendricks, S. B., Ind. Eng. Chem. 28, 440-7 (1936). (13) Jones, G., Bradshaw, B. C., J. Am. Chem. S O Y E , 1780-1800 (1933). (14) Mason, C. M., Culvern, J. B., Ibid., 71, 2387-93 (1949). (15) Ross, W. H., Jones, R. M . , Ibid., s x 6 5 - 7 0 (1925). (16) Rossini, F. D., Gucker, F. T., J r . , Johnston, H. L., Pauling, L., Vinal, G. W., Ibid., 74, 2699-701 (1952). (17) Simon, A., Schulze, Z . anorg. allgern. Chem. 242, 313-68 (1939). (18) Wichers, E., J. Am. Chem. Soc.?, 2033-5 (1954). Received for review December 12, 1955 Accepted January 13,1956 CHEMICAL AND ENGINEERING DATA SERIES
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