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Preparation and Characterization of an 8.4 Å Hydrate of Kaolinite

Published online by Cambridge University Press:  28 February 2024

Jim Tunney  and
Christian Detellier
Jim Tunney
Affiliation:
Ottawa-Carleton Chemistry Institute Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
Christian Detellier
Affiliation:
Ottawa-Carleton Chemistry Institute Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
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Abstract

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A stable 8.4 Å hydrate of kaolinite was prepared by exchanging ethylene glycol for water in the 10.8 Å intercalate of ethylene glycol in kaolinite. The hydrate of kaolinite was characterized by XRD, FTIR and TGA/DSC. From the TGA data, one can estimate that there is 0.60 water molecule per Al2Si2O5(OH)4 units. The IR data suggest a similarity of the local environment of the intercalated water in this 8.4 Å hydrate of kaolinite and the 8.4 Å hydrate of nacrite previously described by Wada (1965).

Keywords

Ethylene glycolHydrate of kaoliniteIntercalationKaoliniteOrgano-clay
Type
Research Article
Information
Clays and Clay Minerals , Volume 42 , Issue 4 , August 1994 , pp. 473 - 476
Copyright
Copyright © 1994, Clay Minerals Society

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