SURFACE-CHARGE OF ALKALI-HALIDE PARTICLES AS DETERMINED BY LASER-DOPPLER ELECTROPHORESIS

被引：87

作者：

MILLER, JD ^{[1
]}

YALAMANCHILI, MR ^{[1
]}

KELLAR, JJ ^{[1
]}

机构：

[1] S DAKOTA SCH MINES & TECHNOL,DEPT MAT ENGN,RAPID CITY,SD 57701

来源：

LANGMUIR | 1992年 / 8卷 / 05期

关键词：

D O I：

10.1021/la00041a036

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nonequilibrium electrophoretic-mobility measurements by laser-Doppler electrophoresis are reported for alkali halide particles. These measurements have been made for the first time and allow for the sign of the surface charge to be predicted for alkali halides in their saturated brines. In general, the results can be explained from the simplified lattice ion hydration theory; however, potassium chloride is, at least, one noteworthy exception. On the basis of this analysis, particle dispersion/aggregation behavior in saturated brines can be explained. Further, the nature of collector (surfactant) adsorption and the flotation behavior of the alkali halide salts from their saturated brines can now be described more accurately.

引用

页码：1464 / 1469

页数：6

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