Analytical Chemistry, Volume II: Quantitative Analysis. Ninth English

Analytical Chemistry, Volume II: Quantitative Analysis. Ninth English edition (Treadwell, F. P.; revised and enlarged by William T. Hall.) Mary L. She...
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ELEMENTARY PHYSICAL&EMISTRY. Merk Randall. Professor of Chemistry, University of California. Berkeley. California, and Leona Esther Y o w g , Professor of Chemistry, Mills College, Oakland, California. Randall and Sons, 2512 Etna Street. Berkeley. California, 1942. xiv f 455 pp. 279 figs. 15 X 23 cm. $4.50. The authors wrote this hook primarily for sophomore and junior students and particularly for those not majoring in chemistry. To arouse interest, applications are stressed in both illustrations and problems. As a further stimulus, "The order of presentation is arranged t o parallel the work in several courses beyond the first year." This results in an outline samewhat as follows: Introduction.. ~ o o r i z a t i o nand activitv. .. auantitative analysis, fugacity and perfect solutions, general ionic equilihria, g a w , thermochemistry, liquid mixtures, colligativc properties, phase rule, free energy, electromotive force, volumetric relations, solubility and activity, special ionic equilibria. viscosity, conductivity, polarization, kinetics and radioactivity. Moreover, the various subjects are so interwoven that selection of chapters alone will not suffice t o fit the book t o the more traditional order. The hook is called "elementary" and in part it is. But the reader may question the justification for using this term when he considers the twelve pages spent on kinetic theory, sixteen more on the solubility of "insoluble" salts, and other things of like character. I n its parts the h w k is well written and interesting. Especially well done are the sections on ionic equilibria, indicators and buffers, free energy and equilibrium, phase diagram interpretation. etc. As might he expected, the thermodynamic approach is emphasized throughout. The solution of problems by the method of successive approximations is carefully demonstrated in several connections. There is an unusually extensive discussion of calorimetry. Six hundred and ninety-four problems provide a most liberal collection. Each of the numerous figures is accompanied by an explanatory paragraph. There are abundant references and ample tables of data (96, including those in the prohlems and appendix). The h w k is a photolith reorduction. - =~ This hook is recommended far reference purposes, for individual study, and as a text when the conditions of its use approximate the authors' intentions. MALCOLM M. H m o

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values, and logarithm tables. The application of instrumental methods t o analvsis is de6nitelv excluded from the scone of the ~~hook, and micro and semimicro methods have not been included. A major change is the rcnrrangement of the cations according to the usual scheme of qualitative analysis. As in previous editions most of the analytical theory is relegated to "Volume I. Qualitative Analysis," but thc esscntinl theoretical material for acidimetry and alkalimetry is given and the Briinsted concept of Acid-Base is introduced. The theory relating to indicators, buffer solutions. and oxidation-reduction has been exnanded. The section on weighing and manipulative tcrhnic is dehitely improved by the replacement of the Kohlrauxh mrthad of weight calibration by a trsnsposition method, by theelimination of some figures representing old type equipment, and by the introduction of a brief discussion of colloidal solutions and coprecipitatton. This edition retains all the advnntages of the previous editions, and in addition has brought in same bewer analytical methods. The use of the term "polarity" (p. 449) affects this reviewer very much as the same usage affected the reviewer of Professor Hall's "Textbook of Quantitative Analysis."' Thereviewer regrets too that a considerable number of references are given without the year, thereby making it difficult for the reader to determine quickly the applicability of a given method t o a present problem. The hook is an excellent reference text far advanced analytical students, teachers, and investigators. It also serves most admirably as a reference b w k for beginning analytical students hecause i t offers a wrietv of methods for a eiveu determination and therefore gives definite training in choice of analysis. The details of procedure arc clear cut and accurate. The hook is well arranged, the type, paper, and binding ewellent. It will be welcomed not only by those who have consistently used the preceding editions but by the younger analysts who are beginning t o realize that the choice in method of analysis depends not alone on the constituent saueht hut on manv other factors.

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AN OUTLINE OF OROASIC NITROGEN COKPOUNDS. Ed. F. Dqtri n g . Purdue University; Cod Sordcnco. Alabama Polytechnic Institute; and G. H. Gym. Westvaco Chlorine Products Company. Third ~ d i t i o n . .John S. Swift. Inc., Cincinnati, Ohio, U m s s m OP M U Y L ~ D co,..srs P-. MAIIYL*ND 1942. 381 pp. 15 X 23 cm. $6.00. This book represents in planographed form material accumulated by the authors over a period of many years, and in part inANALYTICAL CHEMISTRY. VOLUME 11. QUANTITATIVE! ANALYSIS. cluded in courses given a t Purdue University. I t fallows in Based on the text of F. P. Treadwell, revised and enlarged by general the type of "Outlines of organic chemistry" by Degering, William T. Hell. Massachusetts Institute of Technology. Nelson and Harrod, and although written in outline form i t Ninth English Edition. John Wiley and Sons, Inc.. New nevertheless contains enough discussion and explanation t o York, 1942. xi 808 pp. 121 figs. 15 X 23 (m. $6.00. permit of its use as a textbook. One may also add that it will Since 1904 when the first English edition of this text appeared. make a very useful reference work of moderate size in this field. the book has been a standard reference work far analytical methThe 6rst chapter, entitled "General Concepts," deals with ods. During the last four decades there have been few students questions concerning atomic structure, relative electronegativity, of quantitative analysis who did not seek and find valuable and the mechanism of reactions. There follow a few pages an the analytical methods in the Treadwell and Hall. fixation of nitrogen and the ammonia system, and then an exIt is significant that there is a Ninth Edition t o review and this, tended treatment of the more important classes of open chain in itself, speaks for the value and importance of the book. This nitrogen compounds (242 pp.). Alkaloids are treated brietly edition is certainly not a translation of the German text, and i t is (12 pages) and nitrogen ring compaunds somewhat more fully, more than a revision of the eighth English edition. Professor though here only the methods of preparation are given. The Hall has expanded many parts, introduced new methods, com- book concludes with short sections on explosives and on the isopletely rearranged the sequence of metallic elements, and yet, by merism of organic nitrogen compounds. The arrangement of a elimination of some of the older material, has kept the size of the tVDical The section (dinhatic amines) is the followine: . . " A. hook practically the same as in previous editions. This is in geueral rclatmnship of the amincs nnd their natural occurrence; accord with the author's purpose to have i t "an inexpensive B . Somenclaturc; C. Preparation; D. Physical Yroperties: textbook, which is meant to be useful t o students of chemistry E. Reactions. who desire precise information concerning well-known analytical The printing, typography and binding are good, although the methods." As in previous editions the author has limited himself reviewer has noticed a few minor misprints. The price seems a t o the methods of Gravimetric, Volumetric (Titrimetric), and trifle high for a planomphed book of this size. Gab Analysis. These constitute three of the four parts of the hook. The fourth part is composed of informational and useful data, as density tables of acid and base solutions, molecular and equivalent weights, chemical factors based on 1941 atomic weight 1 HALL, J. CHBM. E ~ u c . ,19,350 (1942).

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