Publisher's Synopsis
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.
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