Zeta potentials in nonaqueous media: how to measure and control them

被引：36

作者：

Kosmulski, M ^{[1
]}

机构：

[1] Abo Akad Univ, Dept Chem Phys, Turku, Finland

[2] Tech Univ Lubin, Dept Eectrochem, Lublin, Poland

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 159卷 / 2-3期

关键词：

solvents; zeta-potential; mobility;

D O I：

10.1016/S0927-7757(99)00273-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of traces of water in nonaqueous solvents on the zeta-potential is overrated, and the role of impurities in presumably pure organic solvents is often overlooked. Oxides can serve as potentiometric sensors to determine the concentration and nature of impurities. Even in very inert solvents the countercharge in solution must exist. Small ions are stabilized by homoconjugation and by amphiphilic nonionic compounds. The electrokinetic phenomena of the second kind are more common in nonaqueous solvents and they lead to very high absolute values of mobility at high field strengths. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：277 / 281

页数：5

共 22 条

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