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Characterization method through the electrophoretic behaviour of clays in an aqueous medium

Published online by Cambridge University Press:  09 July 2018

C. A. Piccinini ,
S. Bragança  and
C. P. Bergmann
C. A. Piccinini*
Affiliation:
Ceramic Laboratory, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99/705, Porto Alegre-RS, Brazil
S. Bragança
Affiliation:
Ceramic Laboratory, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99/705, Porto Alegre-RS, Brazil
C. P. Bergmann
Affiliation:
Ceramic Laboratory, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99/705, Porto Alegre-RS, Brazil
*
*E-mail: capicini@uol.com.br
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Abstract

This study investigated a method for characterizing the behaviour of clays in an aqueous medium in the presence of an electric field. The experiments were performed with different clays (kaolinite, smectite, kaolinite-smectite) suspended in deionized water. An apparatus was developed for measuring a continuous electric current under the singular effect of adding sodium silicate to the aqueous suspensions. The results showed that the method allows the differentiation of the investigated clays through their electrophoretic behaviour in an aqueous solution.

Keywords

clay mineralselectric conductanceelectrophoretic behaviourclay properties
Type
Research Article
Information
Clay Minerals , Volume 48 , Issue 3 , June 2013 , pp. 491 - 497
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2013

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