Decay lengths of double-layer forces in solutions of partly associated ions

被引:24
|
作者
Tulpar, A [1 ]
Subramanian, V [1 ]
Ducker, W [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA
关键词
D O I
10.1021/la001216h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The results of decay lengths of double-layer forces in sodium dodecyl sulfate (SDS) and dodecyltrimethylammonium bromide solutions were studied. The decay lengths were determined by fitting a line to the linear region of ln(force) versus separation plots, at separations greater than one decay length. It was concluded that the equilibrium constant of weak symmetrical electrolytes could be obtained from the measurement of the decay of double-layer forces.
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页码:8451 / 8454
页数:4
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