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Book Review The Industrial Chemistry of the Lanthanons Yttrium Thorium and Uranium. By R. J

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The appearance of the extensive cumulative index at last
permits the work to be used to the full, as in the past a
thorough knowledge of enzyme chemistry was sometimes
needed to find one’s way through the haphazardly classified
material. The index contains several references to compounds
which appear in the text under different names and the
reader is expected to know that he will have to consult
“adenylic acid” for full information about AMP after
studying “adenosine monophosphate” and “adenosine phosphate”. The coenzyme of numerous dehydrogenases is found
both under “NAD” and “DPN”. Once again two camps the adherents to modern and to old nomenclature - are found
in a book where uniformity is so desirable. Finally, depending
on whether the contributions happen to be English or German, there are references to the same enzyme as e.g. “pancreatic carboxypeptidase” and “pancreas carboxypeptidase”.
Surprisingly, the action of amethopterin (and the same
holds for aminopterin) on deoxyribonuclease is recorded,
but not the much more significant action o n the folic aciddependent enzymes (e.g. Part B, p. 196).
The contents of the third part are assembled in a similar way
to those of the first two. In some instances literature references
extending to very recent times are included, in others (e.g.
aconitase, carboanhydrase, thiamine pyrophosphate-containing enzymes) only those to the end of the fifties. Both encyclopedic articles and short contributions restricted to
descriptions of methods are found side by side. The absence
of an article on catalases or peroxidases is regrettable.
Handbooks such as this quickly become dated, especially,
if some of the contributions are already out of date on the
day of publication. Will it be wise to bring out a new edition
soon? The reviewer thinks not, unless the structure of the
handbook is fundamentally altered. Articles more than 100
pages in length will make it increasingly difficult to find
qualified authors who will deliver on time manuscripts incorporating the latest advances. A large number of short
articles would surely be entirely adequate for a book of
enzyme methods. The editors would then have to coordinate
the contributions and edit them systematically.The “Methods
in Enzymology” should serve as a model. If each enzyme
were treated by one author, it would be possible to go one
step further in a future edition to keep the handbook abreast
of new developments. Law books have for some time been
issued in the form of loose-leaf editions, so that parts can be
replaced as required. This arrangement seems eminently
suited for a handbook on enzymology and should be imitated.
H . Sund
[NB 705 IE]
Grundlagen der Tribochemie (Fundamentals of Tribochemistry). By P.-A. Thiessen, K. Meyer, and G. Heinicke. Abhandlungen der Deutschen Akademie der Wissenschaften
zu Berlin, K1. f. Chemie, Geologie und Biologie, 1966,
No. 1. Akademie-Verlag, Berlin. 1967, 1st Edit., 194 pp.,
159 figures, 24 tables, cloth, D M 33.-.
The book is divided into three monographs: Physicochemical
investigations of tribomechanical processes (Thiessen),Energetically excited states in tribomechanical processes (Meyer),
Physicochemical investigations of tribochemical processes
(Heinicke); the common introduction is by P.-A. Thiessen.
The first contribution presents an excellent and concise
survey of the phenomena caused by tribomechanical processes. Starting from the investigations by SmekuZ and Bowden on microplasticity and friction in solids, the magmaplasma model is taken as the basis, by virtue of its being
subject to least contradiction. It is shown that the various
associated phenomena of tribomechanical processes, such as
detaching of lattice structural units, generation and migration of dislocations, material transfer, luminescence phenomena, charge transfer, emission of electrons, and increase in
chemical reactivity are in accord with the requirements of
this model.
The second contribution deals at length with fractureless
mechanical deformation and the induced electrical phe-
nomena. In the last contribution the chemical reactions that
occur during mechanical processing are discussed in detail.
The present book gives a good survey of a field which,
scientifically, is still in its infancy, and which is in urgent
need of further experimental and theoretical investigation.
At the same time, the significance of these investigations for
technology becomes evident.
1. N . Stranski [NB 698 IE]
Praktikum der qualitativen Analyse (Practical Handbook of
Qualitative Analysis). By M. Becke-Goehring and J. Weiss.
Theodor Steinkopff. Dresden 1967. 1st Edit., x, 122 pages,
10 figures, DM 10.70.
“Praktikum der qualitativen Analyse” is the continuation of
the successful “Kurze Anleitung zur qualitativen Analyse”
(Short Introduction to Qualitative Analysis) by Medicus/
Goehring, which ran to 28 editions. The concise presentation
is retained in the present revised edition.
The individual elements and their characteristic reactions are
discussed in the sequence of the classical methods of analytical
separation. Special organic reagents are not dealt with apart
from a few exceptions.
The separation processes for cations and anions are compiled
in tabulated form. Supplementary chapters on the individual
groups indicate peculiarities and possible sources of error.
Evidently, it was decided to retain macro-scale analysis even
within the framework of this small volume, so that only a few
short paragraphs are devoted to semimicro methods. Separate discussion of some rarer elements makes the separation
schemes clearer. On the other hand, the presentation is too
condensed for the undergraduate majoring in chemistry,
who will also have to turn to larger, more comprehensive
works. This is all the more true as the theoretical basis has
been almost entirely ignored.
Because of the clear presentation and well arranged content,
the book can be recommended especially to those for whom
E. ~
[ [NB~700 IEI~
chemistry is a subsidiary subject.
The Industrial Chemistry of the Lanthanons,Yttrium, Thorium,
and Uranium. By R. J. Callow, Pergamon Press, OxfordLondon-Edinburgh 1967. 1st Edit. vii, 248 pp.. several
figures, 60 s.
An introductory historical survey is followed by nine chapters that are devoted to the production and technical applications of these elements as well as a discussion of analytical
methods and the purity of commercial compounds and workable ores. A brief concluding chapter deals with problems
associated with the radioactivity of thorium and uranium understandably tailored to a British viewpoint. The individual
chapters are well written and in general offer a clear presentation of the subject. Those dealing with the preparation,
separation, and purification of the elements are particularly
valuable, and reveal the depth of the author’s knowledge of
the field. The excellent flow sheets of the individual processes make a substantial contribution to the ease of comprehension. In the reviewer’s opinion the chapter on the
applications of the elements is a little skimped, not only in
the selection but also in the detail. For example, no mention
is made of the use of europium compounds as lasers, while
that of thorium and uranium for nuclear energy is dismissed
in an entirely inadequate and in some respects out-of-date
section under the heading “Some possible applications”. In
the chapter on analysis the currently very important activation analysis for uranium is restricted to the sentence “neutron
activation is applicable in some cases but necessary facilities
are not generally available”. Revision of certain chapters,
particularly 8 and 9, would considerably enhance the value of
this intrinsically satisfactory and instructive book. The author
should not only discuss the fields that he himself considers
important - as he states in the preface - but also devote to
those problems in which he may be less interested the same
care and thoroughness as he does, for instance, to Chapters 4
to 6.
C. Keller
f l B 716 IE]
Angew. Chem. internat. Edit.
VoI. 7 (1968) / N o . 7
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