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Some notes on the hydration of montmorillonite

Published online by Cambridge University Press:  14 March 2018

Robert C. Mackenzie
Robert C. Mackenzie*
Affiliation:
Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
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Extract

Two suggestions as to the structure of sorbed water on clays have received considerable attention. Macey (1942), arguing from the similarity between the structure of ice and of the oxygen atoms exposed at a sheet surface, has suggested that the first layers of such water might have a structure similar to that of ice. Hendricks and Jefferson (1938), on the other hand, suggested the well-known “hexagonal-net” structure, a concept which was later extended to montmorillonite (Hendricks, Nelson and Alexander, 1940), and which has recently been used increasingly in the interpretation of the properties of clays (Grim and Cuthbert, 1945; Grim, 1942; Mering, 1946).

Some difficulties in the application of these theories to montmorillonite have already been pointed out by Williamson (1947-48), but some other aspects of the problem appear to merit further consideration. For example, there is an obvious space problem which is influenced by the position of the exchangeable cations and their frequency of distribution in the space available for water.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 0 , Issue 4 , October 1950 , pp. 115 - 119
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1950

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References

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