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Interstratification in Montmorillonite

Published online by Cambridge University Press:  01 January 2024

Rodney Tettenhorst  and
W. D. Johns
Rodney Tettenhorst
Affiliation:
The Ohio State University, Columbus, Ohio, USA
W. D. Johns
Affiliation:
Washington University, St. Louis, Missouri, USA
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Abstract

Direct analysis by Fourier transform methods revealed interstratification of three components for a homogeneous, potassium-treated and organic-solvated montmorillon-ite. An initial simple interpretation based on random mixing of two components was shown to be incorrect. Ethylene glycol solvation showed enhanced expansion in agreement with earlier investigations. Glycerol solvation produced a noteworthy contribution from a 14 Å component. An interpretation of the 14 Å component is suggested, based on an asymmetric distribution of layer charge. Regular interstratification, bending or curling of clay layers and anomalous dehydroxylation temperatures may be a consequence of asymmetric layer charge distribution in montmorillonites.

Type
Symposium on Structural Aspects of Layer Silicate
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 13 , February 1964 , pp. 85 - 93
Copyright
Copyright © The Clay Minerals Society 1964

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