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Chemical potential of water from measurements of optic axial angle of zeolites

Eberlein G. Donald·C. L. Christ
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Abstract

Values of the uncorrected optic axial angle (2H α ) of a crystal of the calcium zeolite stellerite (CaAl 2 Si 7 O l8 · 7H 2 0) immersed in calcium chloride solutions of known activity of water (a w ) are directly proportional to log a w . A general relationship between the chemical potential of water in the crystal and the optic axial angle is obeyed.

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Eberlein G. Donald, C. L. Christ. 1968. Chemical potential of water from measurements of optic axial angle of zeolites. https://doi.org/10.1126/science.162.3858.1145

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