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Determination of the Cation Exchange Capacity of Clays by Surface Tension Measurements

Published online by Cambridge University Press:  09 July 2018

G. Burrafato  and
F. Miano
G. Burrafato
Affiliation:
AG1P S.p.A., Drilling Fluids Laboratory, via Maritano 26, 20097 S. Donato Milanese and
F. Miano
Affiliation:
ENIRICERCHE S.p.A., via Maritano 26, 20097 S.Donato Milanese, Italy
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Abstract

The cation exchange capacity (CEC) of clay minerals has been determined by titration of aqueous suspension of clays with hexadecylpyridinium chloride, monitored using surface tension measurements. In order to make the method suitable for an accurate analysis of the CEC of the clays in drilling fluids or in soils, some parameters affecting the CEC determination (e.g. the presence of carboxymethylcellulose, mixing time and measurement device) have been investigated.

Type
Research Article
Information
Clay Minerals , Volume 28 , Issue 3 , September 1993 , pp. 475 - 481
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1993

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