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Standards and Tests for Reagent Chemicals (Classic Reprint)




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Partner:buecher.de
Hersteller:Forgotten Books (Murray, Benjamin L.)
Stand:2015-08-04 03:50:33

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Produktbeschreibung

Excerpt from Standards and Tests for Reagent Chemicals The large number of new chemical and allied industries that have sprung up in our country, and the recent extensive expansion of the old, have greatly increased the consumption of reagent chemicals. Research, analytical, and control chemistry have entered upon new and very broad fields of activity as a result of the impulse acquired by manufacturing. New reagent chemicals, as well as more complete and more appropriate lines of earlier reagents, are needed to assist in the vital problem of production, or to suitably control the quality of the factory output. But the very chemicals by means of which this is done must themselves be tested and standardized. In other words, our chemical tools need calibration. Certain desired degrees of purity in our laboratory chemicals must be insured. Recognizing the above condition this text has been prepared. It describes and standardizes the more important testing chemicals used today in factory and other laboratories, particularly those produced successfully on a commercial scale. A few, although very important, are not described, as they are generally prepared extemporaneously. Rather full descriptions of the physical properties of chemicals, action of light and air, precautions to be observed in storing, statement of uses, etc., are made. In many cases, too, the physical constants of reagent chemicals produced in a commercial way, are, for purposes of information, compared with those obtaining on laboratory specimens, doubtless of extreme purity. It is hoped that certain readers, especially younger men, or those without convenient reference works at hand may find these somewhat elementary features of the text of value. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.


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