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A Novel Differential Thermal Analysis Method for Quantifying the Sorption Capacity of Smectite Clay

Published online by Cambridge University Press:  02 April 2024

Paul O'Brien  and
Colin J. Williamson
Paul O'Brien
Affiliation:
Department of Chemistry, Queen Mary and Westfield College, University of London Mile End Rd., London El 4NS, United Kingdom
Colin J. Williamson
Affiliation:
Department of Chemistry, Queen Mary and Westfield College, University of London Mile End Rd., London El 4NS, United Kingdom
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Abstract

The enthalpy of freezing of methyl salicylate sorbed by four commercial montmorillonite clays was used to estimate the absorption/adsorption capacity of the clay. Differential thermal analysis was therefore employed to give a quantitative estimate of the sorption capacity of the clay for methyl salicylate. The absorption capacity of the clay depended on the state of hydration and ranged from 30.4% for an 8% water content to 9.7% for a montmorillonite containing 24% water.

Keywords

AdsorptionDifferential thermal analysisHydrationMethyl salicylateSmectite
Type
Research Article
Information
Clays and Clay Minerals , Volume 38 , Issue 3 , June 1990 , pp. 322 - 326
Copyright
Copyright © 1990, The Clay Minerals Society

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