Journal Of The Chemical Society 1899

Excerpt from The Journal of the American Chemical Society, 1899, Vol. 21: Part II The essential part of the apparatus is the water-cooled stopper for closing the crucible. The construction of this stopper will be readily understood from the sketch. The stopper is made of sheet copper, the joints being brazed. It is, of course, essential that it should be as near perfectly circular as possible, with no indentations or imperfections in the brazing. The sides of the stopper should not are more than the sides of the crucible at the top. Too much are has a tendency to cause the stopper to be forced out of the crucible when under pressure. 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."

Excerpt from The Journal of the American Chemical Society, 1899, Vol. 21 In the investigations of Walker and Aston and also in those of Long the polariscope was used exclusively to follow the prog ress of the inversion. This is no doubt the simplest and most accurate method to use whenever it is applicable. It is evident, however, that the polariscope cannot be used in working with colored solutions and that the accuracy of measurement with this instrument is greatly impaired when the solutions are not perfectly clear. Long cites several instances where, after pro longed heating, the solutions became somewhat colored or turbid, making their polarization difficult. The objects of this investigation are (1) to find a method by means of which the speed of inversion of sugar by colored salts can be determined, and (2) to compare the basicity of the met als as ascertained by the method of sugar inversion with their so-called solution tensions, as found by the measurement of the electromotive forces of galvanic chains. 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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Excerpt from Journal of the Chemical Society, 1899, Vol. 76: Abstracts of Papers on Organic Chemistry; Part I On adding 50 grams of crystalline sodium ferrocyanide dissolved in water (50 c.c.) to a solution of 60 grams of potassium carbonate in 60 c.c. Of water, 93 per cent. Of the potassium ferrocyanide theo retically possible separates on standing. When a solution of 50 grams of sodium carbonate in 150 c.c. Of water is added to 50 grams of potassium ferrocyanide dissolved in 100 c.c. Of water, no crystals separate on standing, but on evaporating the liquid to one-half its volume, sodium and potassium ferrocyanide crystallise together. When, however, an aqueous solution of 60 grams of sodium chloride and 50 grams of potassium ferrocyanide is allowed to crystallise, 91 per cent. Of the sodium ferrocyanide theoretically possible is obtained; on the other hand, a solution of 60 grams of potassium chloride and 50 grams of sodium ferrocyanide deposits 60 per cent. Of the theoretical quantity of potassium ferrocyanide. These phenomena are elucidated by the values given of the solubility of potassium and sodium ferrocyanide in solutions of the alkali chlorides and carbonates at ordinary temperatures, potassium ferrocyanide is very slightly soluble in saturated aqueous potassium chloride, and sodium ferro cyanide in sodium chloride solution. Similarly, each ferrocyanide is very sparingly soluble in a solution of the carbonate of its own metal. 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.

Proceedings of the Society are included in v. 1-59, 1879-1937.