Date of Award

5-1930

Document Type

Open Access

Degree Name

Masters of Science

Department

Chemistry

First Advisor

Charles B. Hurd

Language

English

Abstract

The calcium hydride equilibrium has been investigated by a number of men but the results obtained have been almost as diversified as the the number of workers. There is considerable doubt as to the mechanism of the dissociation and the compounds formed. Some workers claim evidence of the two hydrides while others found only the normal hydride, CaH2. In most of the previous work, the equilibrium has been more or less disturbed by the volatility of the calcium and the hydride and also the reaction of the calcium or the hydride on the quartz containers. In this work an attempt has been made to overcome these difficulties by enclosing the solids in an iron or nickel cylinder which is permeable to hydrogen gas at the temperatures of the dissociation. This should give more accurate hydrogen pressures which is a measure of the progress of the reaction since it is the only gaseous component. This method can also be applied to the measurement of dissociation of the hydrides of barium and strontium.

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In Copyright - Educational Use Permitted.