SEW BOOKS Organic rinalgtical Rengents. I-oZ. ZI. By E‘RASK J . WELCHEK. 530 p p . S c j v Y o r k : 1). Van S o s t r a n d Co., I n c . , 1947. Price: $8.00 (series price, $ 7 . 0 0 ~ . The first volume of this “handbook” was published early in 1947 antl was reviewed i n this .Journal ( J . Phys. Colloid Cheni. 51, 1035 (1Ni)I . The rapid publication of 1-olumr: I1 of this series will he appreciated by all analytical ch(Lmists and o t h r r chemists w h o arc’ iriterested in t h e analytical application of organic reagcnts antl solvents. The general nature of the book and the classification of the various conipounde havr k e n descrihetl i n t h e review of tlic first volume. The present volume comprises t e n chapters dealing v;ith organic acids:, halogen-substit u t e d acids, hydroxy acids. amino acids, niiscellancous acids, acyl halides, acid anhydrides, esters, amines, and quaternary ammonium compounds. .is in the first volume a n index of names and synonyms of organic reagents and a n index of the uses of organic reagents are given at the end of the book. The application of t h e reagents is confined t o inorganic analysis. A s in the first volume the literature is covered thoroughly up t o January 1,1946, and the revicwcr did not discover any serious omissions. ‘I-nder safraninc the application of this substance as a n adsorption indicator in argentonietric titrations might have been mentioned. -41~0.a brief general discussion of the use of various compounds as oxidation-reduction indicators (e.g., benzidine, diphenylamine, diphenylbenzidine, etc.) with a list of osidation potentials would be desirable. This second volume is a welcome addition t o the library of analytical chemists. I. 31. KOLTHOFF.
Symposium on Plasticizers. 85 pp. 1-ew T o r k : Interscience Publishers, Inc.. 1947. Price: $1.75. This volume consists of five papers which \I ere given at a Symposium on Plasticizers held a t the Pniversity of Buffalo on J u n e 7 and 8, 1946, together with a brief introduction by E. F. h a r d . The papers are reprinted u-ithout change from the Journal of Polymer Science, Vol. 2 , S o . 2 (194i). T h e papers are: “Survey of Plasticizers for Vinyl Resins” by 31.C. Reed; “Application of a 5lechanistic Theory of Solvent Action t o Plasticizers and Plasticization” by Arthur K. Doolittle; “Internal Plasticization; T h e Effect of Chemical Structure” by IT.L. Simril; “Effect of Plasticizers on Second-order Transition Points of High Polymers” by R . F.Boyer and R. S. Spencer; and “Creep Behaviour of Plasticized I-inylite V Y S W ” by W.Cuken, T. Alfrey, J r . , A . Janssen, and H . AIark. Workers in t h e field of plasticizers nil1 find it convenient t o have this collection of articles if they do not have access t o the journal in 15 hich they appeared. I t seems t h a t such a publication as this might be increased in value if t h e informal discussion held a t the Symposium \$ere given in abbreviated form. E. .I. J I E E H l h . Physzcal C h e m z s t i y . First edition. By E. D. E k V r v k h ASU G . K . ROLLEFSOS. viii 4-504 p p . Xew T o r k and London: 11cGraa-Hi11 Book Company. Inc., 1947. Price: S4.50. This excellent introductory text in physical chemistry has been prepared by revision and extension of a syllabus i n use a t the ITniversity of California since 1942. I t s publication, delayed by the untimely death of Professor Eastman, nil1 be of interest t o those n ho wish more descriptive material t h a n most such text? provide, particularly with respect t o t h e more recent ideas in chemistry. T h e arrangement of subject matter is somenhat unusual in some respects. The chapters are generally short, ttith numerous exercises and problems at the end of nearly all. The first law of thermodynamics I S introduced immediately after t h e descriptions of the intertcms. 2nd i s folloncd hy i t - applicantions in thermocahcmartions and qtatrs of material
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istry. The chaptclr o n thc liquid state follons t h e chapters relating to the g states. a n arrangeincnt which permits discussion fro:ii both of tlic applicable points of view. T h e chapters o n atomic structure, molccdar structure, :tnd radioactivity and nuclear reactions a r e particularly good, as arc also the nutnerous other discussions throughout from t h e structural point of view. The second lan. of therniodynatnics is introduced after a short chapter on solutions, and i j follon-et1 b y a discussion of pliaie equilibria i n oiie-co!iiponent s y s t e x s . Then, before introducing tlie stutlcnt to niorc co:iiplicated phase equilibria in niu1tico:nponnt systems. thc authors ninlcr a careful unification and extension of concepts in discmssions of cscaping tendcnc,y and thc propertics of ideal solutions. T h e erc~ellent chapters on cheniicnl cquilibria ; m i lcinet ics contain nuni(’rous exercises n o r k e d out i n detail and, subsequently, nunicrous prohlenis for t h e student. The chapters on conductance and transference ant1 on electromotive f o r c e are well done: as :ire also the final chapters on interactions of light lvith :nattcr and o n surface phenometm. .is a result of the sonicwhat niorc descriptive point of view cven sonie of the simple derivations are licit includcd, hut i,cfercnces t o standard norlcs Tvhere they inay be found are given, and they may usually easily h e supplied in the lectures. T h e literature references are soincivhat too few, arid very often quite troublesome t o follo\V up n-hen only t h e author and year arc given; this tendency detracts someiyhat froin t h e book’s value as a reference n-ork. The first editions of all t echnicnl hooks contain errors, a n d a fctv of t h e important ones prescnt here m a y be \vorth noting. Cerium is not t h e only rare e s r t h i n ( p . lSI)), as is evidenced by higher valence states which the 4.f electrons play n c.hcniiral 1.61~ of praseodymium and terhiuw. T h e authors have confused t h e meanings of the terins “lattice” and “structure” in t h c r-hapter on t h e crystalline s t a t e , and have used them interchangeably. A number of tlie rostrictions on thermodynamic variables in statements and equations i n C‘1iaptc.r ST- have, h c n omitted. Thus ( p . 1.56) & = I0 for a reversible process only if I!‘ (as x e l l as T ) is constant. Equation (4) on p . 2.57 and t h e statements regarding AF i n Section 10, belon-. arc, of (’ourse, true with t h e restrictions t h a t both p and 7’ arc cons t a n t . Equation (S) on p . 260 and t h e first equation on p . 267 need the restriction t h a t p is constant. The soc~ontlc,luation on p. 267 is true only \rhen 1’ is constant, and is given correctly on p. 259. T h e publishers have ~ ~ o i ~ i i r r a ?in e i lpresenting this book estremely well, on escellent paper, and with very few n i i ~ p r i n t s , 1,-nder t h e guidance of a c*o::ipetent teacher t h e student !Till find this a n escellent beginning t e s t in physical chemistry, and it is most heartily recommended. W I r m . < x S.LIPSCOVB.
X i c h l c , - d , i s c i i ~ t l t : The Che!nislr?/ oj” / h a Corimn COmpOUlkdS. 1’02. Iv. T h e H e t e r o c y c l i c C o m p o u n d s a n d Orgnnir Free Ra(1icnIs. Third English edition, based upon t h e twelfth German edition. Translatetl tiy 11. I-. Ilarlicn and A . J . l l e e . s v C 408 pp. S e w York: Elsevier Puhlishing C‘onipmy, 1917. Price: $12.00. This is the fourth. and final, volumc of the literal translation of Richter-rlnschutz. T h e t e s t is that of the tn-clfth Gernian etlitiun, published in 1935; t h e material in this translation corresponds t o Volume I11 (hetero:.yclic co:iipountls) and t o a portion of 1-olume 11,part 2 (radicals), of the German edition. T h e section on t h e heterocyclic compounds was written h:; F. Reindcl and the translation is b y 11.F.Darken; the section on radicals was written by Ludn-ig ;inschutz and the translation of this is by -4. J . X e e . T h e hook is t h e standard “Richter”, n-ell known t o all chemists. T h e conventional plan of treatment has been follon-ed. The btiok-~iial;ing is good but, all in all, i t is difficult t o understand the necessity f o r a translation of a book now tnelve years old-a book which can hardly be of much more t h a n historical value, and this reviewer feels that t h e energy put into the niaking of this book could \vel1 have been expended more profitably on soniething else. The price ($12.00) is excessive. I,EE IRVISSIIITH.
