Article,

Rapid aging and dynamic surface tension of dilute aqueous solutions

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Chemical Engineering Science, 26 (6): 817--827 (June 1971)
DOI: 10.1016/0009-2509(71)83043-9

Abstract

The mechanism controlling rapid aging of surfaces of aqueous solutions is considered with reference to the variation of dynamic surface tension with time. The Ward--Tordai and Sutherland results for the diffusion-controlled mechanism are critically discussed and a new surface model is introduced which reduces to the Sutherland result as a special case. The diffusion-controlled mechanism is inadequate for aqueous solutions of mono-alcohols. Satifactory agreement between experiment and theory is obtained through introduction of first-order adsorption kinetics, but only for values of the adsorption rate constant which make the governing relation a complex-variable equation.

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