๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Rapid aging and dynamic surface tension of dilute aqueous solutions

โœ Scribed by C. Tsonopoulos; John Newman; J.M. Prausnitz

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
791 KB
Volume
26
Category
Article
ISSN
0009-2509

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โœฆ Synopsis

The mechanism controllii 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. Satisfactory 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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