Excerpt from The Nature of the Interfaces Existing in the Pores of Silica Gel and the Retention of Bromine by Silica Gels: Dissertation
The following investigation was undertaken for the pur pose of more definitely establishing the mechanism of the adsorp tion and retention of gases and liquids by silicio acid gels.
It has been well established by Zsigmondy and his cc workers(l) that the hydrate theory of silica gel is no longer tenable. In the absence of air he was able to measure the ad sorption of alcohol and benzol. He obtained curves very similar to Jan Bemmelen's curves for water. It does not seem possible that the gel structure should form even a loose combination with such a material as benzol. It was further shown that the dry gel only took up the various liquids in proportion to the existing free spaces. 'zsi:mondy's work thus leaves little basis for the theory of chemical union between the gel and the liquids taken up.
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.