DETERMINATION OF THE CATION-EXCHANGE CAPACITY OF CLAYS BY SURFACE-TENSION MEASUREMENTS

Authors
BURRAFATO G MIANO F
Citation
G. Burrafato et F. Miano, DETERMINATION OF THE CATION-EXCHANGE CAPACITY OF CLAYS BY SURFACE-TENSION MEASUREMENTS, Clay Minerals, 28(3), 1993, pp. 475-481
Citations number
8
Categorie Soggetti
Mineralogy
Journal title
Clay Minerals → ACNP
ISSN journal
00098558
Volume
28
Issue
3
Year of publication
1993
Pages
475 - 481
Database
ISI
SICI code
0009-8558(1993)28:3<475:DOTCCO>2.0.ZU;2-T
Abstract
The cation exchange capacity (CEC) of clay minerals has been determine d by titration of aqueous suspension of clays with hexadecylpyridinium chloride, monitored using surface tension measurements. In order to m ake the method suitable for an accurate analysis of the CEC of the cla ys in drilling fluids or in soils, some parameters affecting the CEC d etermination (e.g. the presence of carboxymethylcellulose, mixing time and measurement device) have been investigated.