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Cation Exchange Properties of Micas

II. Hysteresis and Irreversibility during Potassium Exchange

Published online by Cambridge University Press:  09 July 2018

A. C. D. Newman
A. C. D. Newman*
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts
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Abstract

The sorption of potassium by mica partially depleted of potassium was studied by adding potassium to a solution of sodium chloride in quasi-equilibrium with the mica. The concentration of potassium in the solution was increased 1·5 times before reverse exchange was initiated. Potassium resorbed by the depleted mica was extracted more readily than potassium from the original mica. Potassium exchange from mica is not reversible; there is irreversible change in the mica when potassium is exchanged and also an additional hysteresis in the forward and reverse exchange.

Type
Research Article
Information
Clay Minerals , Volume 8 , Issue 3 , July 1970 , pp. 267 - 272
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1970

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