# Book Review Lehrbuch der Elektrochemie (Textbook of Electrochemistry). By G. Kortm

код для вставкиСкачатьBOOK REVIEWS Lehrhuch der Elektrochemie (Textbook of Electrochemistry). By G. Kortiim. Verlag Chemie GmbH, WeinheimIBergstr. 1966. 4th Edit., xvi, 592 pp., illustrations and 72 tables, D M 52.-. Originally written for science students in their later semesters, this book has acquired a very much wider circle of readers owing t o the increasing importance of electrochemistry for many areas such as biochemistry, analysis, chemical kinetics, industrial processes, and new methods of generating electricity. Basically, the book is devoted to the fundamental aspects. Only occasionally are indications of industrial use to be found in the text. The presentation of the principles covers much material. Thus the first 40 pages are reserved for the fundamental laws, and 45 pages are devoted to chemical thermodynamics. In the preliminary chapter o n the preparation of pure substances the band model for the solid state is taken up anew, thereby laying the ground for the later treatment of electrode kinetics at semiconductor electrodes. A third of the total number of pages is devoted solely to the theory of electrolytes. I t contains a new section on concentrated solutions and molten salts (7 pages; the most recent papers cited there were published in 1962). The phase boundary electrode/electrolyte occupies the main part of the book (five chapters). Analytical uses are here treated at reasonable length. The accounts of studies of the structure of the electrochemical double layer and of the types of polarization have been thoroughly revised. Numerous references to original papers make for easier access to the specialist literature in these fields. The last of the 15 chapters has the title “Uses of electrochemical processes”. Here are t o be found very condensed but clear treatments of galvanic elements, of analysis, of the problems of electrodeposition, and of corrosion. Industrial electrochemical processes are not described, a fact that need not be deplored in this case, for a n increased consideration of uses and industry in this book, which is directed to fundamental theories, would have destroyed the remarkable flexibility of the presentation and exceeded the limits of the treatment. A chapter on photopotentials and electroluminescence in electrochemical systems could, however, have rounded off the picture of modern electrochemistry and should indeed find a place in this monograph. I t is not hard to prophecy that the fourth edition will confirm the view that G . Kortiim’s book is a standard work on electrochemistry, and is recognized as such beyond the boundaries of Germany. F. v. Sturm [NB 680 IE] Physikalisch-chernisches Rechnen in Wissenschaft und Technik (Physicochemical Calculation in Science and Industry). By H . Fromherz. Verlag Chemie GmbH., WeinheimIBergstr. 1966. 3rd Edit., xvi, 341 pp., 43 illustrations, D M 35.-. On the assumption that the fundamental physicochemical laws can be learnt and mastered only by using them for relevant numerical examples, the author has collected 210 problems that are taken from actual practice or are met with daily by the physical chemist in his industrial work or in purely scientific work in the laboratory. I n general, the present edition does not range beyond the limits of the second edition [*I, but a number of formal details have been modified t o meet recent international agreements. Each of the 14 chapters is introduced by a preliminary statement of the important laws and the corresponding dimensions; but the main emphasis is always placed on setting and solving special problems. These exercises deal with problems of distillation technique, as well as others such as arise in Angew. Chem. internat. Edit. f VoI. 7 (1968) J No. 4 connection with rocket propulsion, operation of a nuclear reactor, or medico-physiological work. Approximations are often used in solving the problems, since without approximations it is often impossible to make progress in practice. For example, the degree of dissociation is occasionally treated as identical with the conductivity coefficent, although these two concepts have somewhat different meanings; yet, in practice, treating the two numerical values as if they were equal often gives a better quantitative solution t o an equilibrium problem than is obtained by the usual neglect or idealization of the degree of dissociation. This book can certainly be recommended, not only to the beginner, but also to the expert, for it contains many hints o n how to handle special problems more quickly. KI. Schafer [*I Cf. [NB 679 IE] Angew. Chem. 73, 634 (1961). Landolt-Bornstein, Zahlenwerte und Funktionen aus Naturwissenschaften und Technik (Landolt-Bornstein, Numerical Values and Functions from Science and Technology). Edited by K.-H. Hellwege. Gruppe 11: Atom- und Molekularphysik. Band 11. Magnetische Eigenschaften der Koordinations- and metallorganischen Verbindungen der Ubergangselemente (Group I1 : Atomic and Molecular Physics. Vol. 11: Magnetic Properties of Coordination and Organometallic Compounds of the Transition Elements). By E . Konig. Springer Verlag, Berlin-Heidelberg-NewYork 1966. xii, 578 pp., D M 232.-. The present volume fully justifies the concept behind the “New Series” of Landolt-Bornstein, according to which a loosely connected series of rather small volumes on special areas is separated from the rigid arrangement into a few volumes covering wide fields. Research o n magnetic properties, which has developed so rapidly, would have been very difficult t o include clearly within the framework of the “Old Series”. Specialized information o n the magnetic properties of coordination and organometallic compounds of transition elements is collected in the volume under review. The first part contains theresults of measurements of magnetic susceptibility together with the temperature of measurement, the data being arranged according to the transition element concerned. The methods of determination and, for paramagnetic substances, the resulting magnetic moments and 0 values are also given. The arrangement thus corresponds with the established form of the Fuex and Gorter publication of 1957; the arrangement of literature references also corresponds to theirs. The references extend to 1965 but are not complete for the end of that year. The tables are preceded by a brief introduction in which the fundamental equations for determination of magnetic moments from susceptibility values are given, together with diamagnetic corrections and also the calculation of moments with consideration given to the influence of ligand fields and the orbital momentum components. Ferro- and antiferromagnetic interaction are also briefly mentioned but ferrimagnetic interaction i s not. The most important and fundamental facts are skilfully extracted. Moreover, a comprehensive review of the literature makes it possible for the reader to obtain further information from more detailed works (for which purpose Figgis and Lewis’ reviews seem particularly suitable). The tabular section (379 pages), which is supplemented by graphical presentation of magnetic measurements (29 pages), contains a few misprints (e.g. the reference for NbF4 is to be found under A 65 Gi, not under 65 Gi), but these should not escape the critical user. 315

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