NEW BOOKS
GUIOC FOR P U B C H A S I N e ALLOY S M t B T FABRICATION
Valuable guide
For Purchasing Complex and Unusual Alloy Sheet and Light Plate Fabrication As processing techniques have become more complex, the use of specialized alloys and light metals in process equipment has become a necessity. Consequently, we have found you, the purchaser, wanting more and more detailed information and documentation on the technical abilities of equipment fabricators. In this guide, we have used specific examples and photographs from our own operations to "codify" the essentials of our service in fabricating alloy sheet metal equipment involving • • • • •
Intricate shapes special welding skills close tolerances high finishes mechanical components
For your FREE copy, mail the coupon below.
S. BLICKMAN, INC. 9612 Gregory Ave. * Weehawken, N. J. Π Π Π
Please send purchasing guide Also send book on safety enclosures Also send catalog on laboratory furniture
NAME TITLE COMPANY ADDRESS CITY
STATE
Blickman-Built
(H (/eau of yMaéle Setvice
Circle No. 112 on Readers' Service Card
58 A
·
ANALYTICAL CHEMISTRY
preliensive. The first few chapters treat the basic chemistry and physics of the ion exchange process and the theory of ion exchange columns. There is a chapter on testing and evaluation of ion exchanging materials, then a long chapter, occupying one third of the book, on the applications of ion exchange to inorganic analysis. Examples are given of procedures for the analysis of water, alloys, ores, petroleum, beet-sugar juice, and many other materials. This chapter includes a 20page table of chromatographic separations of inorganic ions. The last part of the book discusses applications to organic analysis and such special topics as redox exchangers, ion exchange papers, "liquid ion exchangers" and the analytical uses of ion exchange membranes. It is natural to compare this book with Olof Samuelson's "Ion Exchange Separations in Analytical Chemistry" (Wiley, 1963). Samuelson's book is more detailed, has better figures, and devotes more space to American researches, especially the elegant work of K. A. Kraus and his group at Oak Ridge. Inczédy does not ignore this work, however. His account of the zirconium phosphate-type exchangers is skimpy, but he does justice to anion exchange in metal chloride solutions. Inczédy's book covers a wider field than Samuelson's and complements it nicely. Those who work with ion exchange in analytical chemistry should have both books.
Identification of Materials via Physical Properties, Chemical Tests, and Microscopy. A. A. BenedettiPichler. 492 pages. Academic Press, Inc., Ill Fifth Ave., New York 8, Ν. Υ. 1964. $18. Reviewed by Howard J. Francis, Jr., Pennsalt Chemicals Corp., King of Prussia, Pa. This book is concerned with the in vestigation and description of things as they are, presenting information and techniques accumulated by workers primarily interested in the microchemical discipline, and flavored with the author's more than forty years experi ence as a leading proponent and teacher in the field. This work contains in an ex tremely well organized form, the infor mation and instruction needed to en able the uninitiated to identify and describe that class of samples generally submitted as "what is it?" While the main emphasis is placed on equipment and techniques designed for working in the micro and sub-micro
range, and for the examination of small amounts of material, the author does not limit himself to any self imposed restrictions as to method, tools, or sam ple size. In keeping with Professor Benedetti-Pichler's philosophy, he em phasizes his belief that the most impor tant tools that a scientist works with are those that are already inherent in any successful person; proper use of the senses, and the application of good sense. In reviewing this book one can not help but notice Professor BenedettiPichler's many bon mots that have the property of suggesting that one "use one's head" in a far more polite man ner than is usually encountered. For example, the author states in discussing the problem of sampling . . . "Sampling and analysis are related as question and answer are. Just as a foolish ques tion will rarely lead to a useful answer, an analysis will not be able to solve the problem in the mind of the person sug gesting it if the sample has not been selected so that knowledge of its com position will shed light upon the situa tion on hand." The book is arranged in four parts: The "Introduction," in which the neces sary background and fundamental in formation is discussed, working param eters are defined, as well as the factors which govern the relationship of size of sample to size of equipment and choice of method. Part I, "The Tech nique of Observation and Manipula tion," discusses the microscope, its proper selection and use, along with detailed directions for its adjustment and care. Fourteen experiments are proposed to familiarize the worker with techniques such as: illumination, cali bration, determination of physical properties, the use of optical crystallographic observations, and the often ig nored use of schlieren. Fifty-six fur ther experiments, with accompanying discussion are offered to demonstrate the techniques of thermal operations in various atmospheres, the determination and use of physical constants, and the determination of elements, groups, and compounds by specific and selective reagents and tests. These experiments are designed to demonstrate operations on the gram, centigram, milligram, and submilligram scale. In part II, the "Systematic Analysis" of unknown substances is outlined. Proper record keeping, preliminary ex amination, nondestructive as well as destructive classification testing, and confirmatory tests arranged by groups to more closely describe the sample are discussed. The final part of the book, the "Appendix," contains besides the usual information on the preparation of re-
