Interfacial Tension of Electrolyte Solutions

Yan Levin

doi:10.1063/1.1321043

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arXiv · cond-mat/0009092

Interfacial Tension of Electrolyte Solutions

Yan Levin

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Abstract

A theory is presented to account for the increase in surface tension of water in the presence of electrolyte. Unlike the original ``grand-canonical'' calculation of Onsager and Samaras, which relied on the Gibbs adsorption isotherm and lead to a result which could only be expressed as an infinite series, our approach is ``canonical'' and produces an analytic formula for the excess surface tension. For small concentrations of electrolyte, our result reduces to the Onsager-Samaras limiting law.

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Yan Levin. 2000-09-06. Interfacial Tension of Electrolyte Solutions. https://doi.org/10.1063/1.1321043

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