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Potassium retention in montmorillonites

Published online by Cambridge University Press:  09 July 2018

A. H. Weir
A. H. Weir*
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts
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Abstract

The amounts of potassium retained, after exchange with normal ammonium acetate solution at pH 7, were measured with six montmorillonite-beidellite minerals, whose interlayer charge ranged 0·72-1·00 M+/Si8O22 and where tetrahedral substitution of Al for Si ranged 0·14-0·93 M+/Si8O22. The amount of potassium retained increased with increasing interlayer charge, but there was no correlation between the amount of potassium retained and the tetrahedral charge.

Type
Research Article
Information
Clay Minerals , Volume 6 , Issue 1 , July 1965 , pp. 17 - 22
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1965

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