Researches Upon The Atomic Weights

Author : Theodore William Richards
Publisher : Forgotten Books
ISBN 13 : 9780265367599
Total Pages : 92 pages
Book Rating : 4.3/5 (675 download)

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Download or read book Further Researches Concerning Atomic Weights of Potassium, Silver, Chlorine, Bromine, Nitrogen, and Sulphur (Classic Reprint) written by Theodore William Richards and published by Forgotten Books. This book was released on 2017-10-15 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Further Researches Concerning Atomic Weights of Potassium, Silver, Chlorine, Bromine, Nitrogen, and SulphurThe atomic weight of potassium is a chemical constant of unusual inter est and significance. Standing, as it does, in the middle of the series of five atomic weights of the most electro-positive metals substances which exhibit in a highly marked degree both similarity and progressive change in properties this number must be Of unusual importance in the search for that undiscovered mathematical relationship which undoubtedly exists between these constants. Moreover, the atomic weight of potassium is essentially bound up with the atomic weights of oxygen, chlorine, and silver, this group forming a fundamental basis in the calculation of nearly all the other atomic weights; so that a change in the atomic weight of potassium has a widely ramified effect on the whole table of atomic weights. If any further evidence of this fact were needed, the recent paper of R. W. Gray1 would furnish it.The recent investigation upon the atomic weight of sodium by one of us in conjunction with Dr. R. C. Wells2 showed conclusively that Stas's work, upon which rested earlier knowledge, was somewhat at fault in several respects. The most serious of these errors were, first, the existence of impurity in Stas's silver; secondly, the fact that in his work solid salt was dropped into the argentic solution, causing occlusion of salt; and thirdlv inadequate knowledge concerning solutions of argentic chloride. In View Of these errors it seemed not impossible that a similar revision of potassium might likewise yield slightly lower results for potassium than had been found by this master of exact analysis. For this reason the present investigation was undertaken.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.