NEWS by P. W. West for Volume I, has been included in Volume II. "Furthermore, all tests for inorganic materials which are left in the residue after organic samples are decomposed, have been described in sufficient detail, so that reference to Volume I in such cases will not be necessary, except for amplifica tion of background information." The author emphasizes, however, that this monograph is not intended to replace the well-tested manuals dealing with quali tative organic analysis but merely to supplement such works, 12 being listed at the end of Chapter I. The chapter on preliminary tests has been entirely rewritten and many new tests for functional groups and individ ual compounds have been added. The book contains the complete or orienting description of more than 200 tests. The underlying chemical reactions have been stressed when possible, the perti nent data regarding sensitivity and reli ability have been included for most of the tests, and many references (558) to the original literature will be found at the end of the chapters. The last chapter (Chapter VII) is a tabular summary of the limits of identification attained by spot tests for certain elements (those more frequently present in organic com pounds), characteristic groups, and
many individual compounds. There is an author index (6 pages) and an ex tensive subject index (48 pages). R. E. Oesper, well-known translator of FeigFs books, is to be congratulated for making Volume II and its counterpart, Volume I, available in clear and concise English. Volume II should be extremely valu able not only to analytical chemists but also to organic chemists, biologists, and pharmaceutical chemists, as well as to advanced chemical students. Un doubtedly it will stimulate studies in the field of organic spot test analysis; this was one of the objectives expressed by the author. Semimicro Qualitative A n a l y s i s .
E.
Reviewed by WILLIAM E. CALDWELL,
Oregon State College, Corvallis, Ore. This book is very desirable for use in a sophomore course in qualitative analy sis, where the aim can also be to use the excellent chapters on theory involved. The book might also be used for chemis try major or advanced groups of stu dents in the last half or third of the freshman year. This reviewer con siders the theoretical chapters, which
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Wiig, W. R. Line, and / . F. Flagg. vii + 238 pages. D. Van Nostrand Co., Inc., New York, Ν. Υ., 1954.
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are very well done in the book, too difficult for the average nonmathematically minded students, and feels that the bulk of students should in the second half of the freshman year be ex posed to more descriptive chemistry relating to industrial chemistry. The qualitative analytical part of this book can be used to advantage by second semester freshmen, or by sophomore students. The usual qualitative scheme of analysis is presented with separation of common cations into five groups prior to group analysis. More diagrammatic schemes should be used to augment written directions. Use is made of hydrogen sulfide in groups two and three; the authors should add possible use of thioacetamide. Anion analysis of unknowns is of student interest and the section of the book on this topic is adequate. The final procedural part of the book gives special attention to ferrous alloy and high aluminum alloy analysis. Since the technique of qualitative analysis presented in the book is the usual with few new tests or procedures, this reviewer thinks the outstanding feature of the book is the very well-done eight chapters on theory underlying qualitative analysis. Theory is ex tended to cover even such topics as hydrolytic constants and diverse ap plications of the Nernst equation. Numerous excellent problems, with many answers in the appendix follow theoretical chapters. Die Chemische Analyse in der Stahlind υ strie. Robert Weihrich and August Winkel. viii + 223 pages. Ferdinand Enke Verlag, Stuttgart, Germany, 1954. Paper, DM 29.50; stiff cover DM 32. Eeviewed by HAEBY A. BRIGHT, National Bureau of Standards, Washington, D. C. The revision of the third edition of this text, issued in 1942, was prepared by Winkel, subsequent to the death of R. Weihrich in 1950. The procedures described for the analysis of steels, irons, ferroalloys, ores, and slags are essentially rapid control methods. In line with the increasing use of physicalchemical methods of analysis, potentiometric (including coulometric), pho tometric, and polarographic methods are given in separate chapters, which include discussions on theory and gen eral principles. However, to avoid in creasing the size of the new edition, methods of analyses for some of the less common alloy constituents (Nb, Ta, Be, B, U, Ce, and Th) were omitted or significantly condensed. The subject matter is well presented and represents a good concise documen tation of established analytical methods used in the German steel industry.
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