Cation-Exchange Behavior of Clays and Synthetic Aluminosilica Gels1
Open Access
- 1 January 1979
- journal article
- Published by Springer Nature in Clays and Clay Minerals
- Vol. 27 (2) , 87-90
- https://doi.org/10.1346/ccmn.1979.0270202
Abstract
Cation-exchange capacities determined by methylene blue adsorption (CEC MB) and by the amount of K displaced from a K-saturated clay by NH4 (CEC K//NH4) correlate closely in five soil clays from Pennsylvania, but differ greatly in two soil clays with a large content of amorphous material. CEC MB was found to provide a more precise distinction between montmorillonite and vermiculite than CEC K//NH~. Synthetic aluminosilicate gels showed CEC K//NH4 > CEC Ca/Mg > CEC MB, but no relation to the behavior of the two soil clays with a large content of amorphous material was found.Keywords
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