Journal Of The Chemical Society 1911 Vol 100 PDF Download

Excerpt from Journal of the Chemical Society, 1911, Vol. 99: Transactions; Part II More recently, however, Browning and Flint (amer. J. Sci, 1909, [iv], 28, 347) asserted that if tellurium tetrachloride, dissolved in hydrochloric acid, is precipitated by a large excess of hot water, some separation of the element is effected. The work was continued by Flint (amer. J. Sci, 1910, [iv], 30, A large quantity of tellurium was purified by precipitation with sulphur dioxide, fusion of the precipitate with potassium cyanide, decomposition of the potassium telluride by air, and distillation of the product in a current of hydrogen. About 1000 grams of this material were converted into the dioxide, and dissolved in the minimum quantity of hydrochloric acid. This was poured into a large excess of boiling water, and allowed to remain. The dioxide which separated was again dissolved in hydrochloric acid, and precipitated by hot water. When this process had been repeated four times, atomic-weight determinations were made with the material, and gave a mean result of and after ten repetitions of the same process the atomic weight obtained was only No atomic weight determinations are given in the paper of the less hydrolysable material. 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.