Chemical Reagents, Their Purity and Tests
| Preis: | 17.95 EUR* (inkl. MWST zzgl. Versand - Preis kann jetzt höher sein!) |
| Versand: | 0.00 EUR Versandkostenfrei innerhalb von Deutschland |
| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Merck, E.) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from Chemical Reagents, Their Purity and Tests: A New and Improved Text Based on and Replacing the Latest Edition of Krauch´s "Die Prüfung Der Chemischen Reagentien Auf Reinheit" As long ago as the early seventies I felt the need of a treatise on Chemical Reagents, and thought of compiling such a work. I was then an assistant in the chemical laboratory of the Government Agricultural Experiment Station at Munster, and in my chemical work there met with constant difficulties on account of the great variations in the chemicals which were graded as "C. P." "puriss," etc. It was my aim to fix uniform standards for such chemicals as are used in analytical work, such standards to define closely the degree of purity of the chemicals and yet to be possible of attainment in practice by the manufacturer. Not until 1888, however, did my work in this direction take the tangible form of a book, "Die Pruefung der Chemischen Reagentien auf Reinheit." A second revised and enlarged edition was published in 1891. In 1896 a third edition, carefully revised and still further enlarged, was published. Since that time a good many changes have taken place, so that my book again needed revision. As I was unable to undertake this work, Mr. E. Merck, appreciating the usefulness of such a work as mine, published in 1905 what might be considered its up-to-date revision. It is a source of gratification to me to see this work translated and placed before my colleagues across the sea. Such changes and additions as the translator has made in order to adapt the book to their particular needs, have my approval. 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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