EFFECTS OF CESIUM AND MAGNESIUM CHLORIDE CONCENTRATION ON FLOCCULATION AND PRECIPITATION OF MONTMORILLONITE
2004 Volume 12 Issue 4 Pages 267-269
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2004 Volume 12 Issue 4 Pages 267-269
The flocculation values of Cs-and Mg-montmorillonites were estimated by the relative turbidities of their suspensions in the various concentrations of CsCl and MgCl2 solutions at pH 8.0 after each standing for one day. The outline of result is as follows:
The value of Cs-and Mg-montmorillonite was about 5×10-3 and 2.5×10-4 mol L-1, respectively. Both the Cs-and Mg-montmorillonites should be formed the thin-platy flocs only composed of the “face-to-face” association based on a scheme by Van Olphen (1991). While the montmorillonites saturated with univalent cations were more hydrophilic than the montmorillonites with divalent cations, the Cs-montmorillonite was hydrophobic compared with the Na-montmorillonite of which hydration degree was very high.
