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Baseline Studies of the Clay Minerals Society Source Clays: Layer-Charge Determination and Characteristics of Those Minerals Containing 2:1 Layers

Published online by Cambridge University Press:  28 February 2024

Ahmet R. Mermut  and
G. Lagaly
Ahmet R. Mermut*
Affiliation:
University of Saskatchewan, Department of Soil Science, Saskatoon, Saskatchewan, Canada S7N 5A8
G. Lagaly
Affiliation:
Institute of Inorganic Chemistry, University of Kiel, 24098, Kiel, Germany
*
E-mail of authors: mermut@sask.usask.ca; h.mittag@email.uni-kiel.de
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Extract

The layer charge is perhaps the single most significant characteristic of 2: 1 layer phyllosilicates. Layer charge affects cation-retention capacity and adsorption of water, and various polar organic molecules. The effects of layer charge on the sorptive properties of organo- clays were illustrated by Lee et al. (1990). It is generally agreed that the classification of 2: 1 silicate clays, which is a continuing problem, may be resolved by taking into account the magnitude of the layer charge (Bailey et al., 1971; Malla and Douglas, 1987). Studies on structural chemistry also confirm the importance of the layer charge for the characterization of the 2:1 phyllosilicates (Newman and Brown, 1987).

Type
Research Article
Information
Clays and Clay Minerals , Volume 49 , Issue 5 , October 2001 , pp. 393 - 397
Copyright
Copyright © 2001, The Clay Minerals Society

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