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A Study on the Cation Exchange of [Co(NH3)6]3+ from H-Co (NH3)6-Vermiculite by Inorganic and Quaternary Ammonium Ions

Published online by Cambridge University Press:  01 July 2024

J. L. Das Kanungo
J. L. Das Kanungo*
Affiliation:
Department of Chemistry, University of North Bengal, P.O. North Bengal University, Dist. Darjeeling, West Bengal, India
*
*Present address: Department of Soil Science, University of Reading, Reading, England
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Abstract

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The exchange of [Co(NH3)6]3+ from its vermiculite complex has been carried out with a number of inorganic and alkyl quaternary ammonium ions of varying ionic sizes. The distribution and selectivity coefficients of the desorbing ions increase in the order: Li<Na<NH4<K<Rb<H<Cs for the monovalent, Ca<Mg for the bivalent and (C2H5)4N<(CH3)4N≪CTA (cetyl trimethyl ammonium) <CP (cetyl pyridinium) for the organic ions. The ΔG° values of some of the cation exchange reactions have been calculated by an equation of Kielland (1935).

Type
Research Article
Information
Clays and Clay Minerals , Volume 23 , Issue 5 , October 1975 , pp. 361 - 364
Copyright
Copyright © 1975, The Clay Minerals Society

Footnotes

†

Permanent address.

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