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Semiempirical theory of surface tension of binary systems
Author(s) -
Carey B. S.,
Scriven L. E.,
Davis H. T.
Publication year - 1980
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690260502
Subject(s) - surface tension , mixing (physics) , binary number , thermodynamics , surface (topology) , chemistry , binary system , physics , mathematics , geometry , arithmetic , quantum mechanics
Surface tensions of several binary mixtures are computed using the gradient theory of inhomogeneous fluids. The interfacial influence parameters are determined from mixing rules and pure fluid experimental tensions. A comparison of the compositional dependence of the predicted and experimental tensions indicates that the best results for nonpolar hydrocarbons are obtained from a geometric mixing rule for the influence parameter. Predicted tensions vs. composition for nonpolar systems are in excellent agreement with experiment, generally lying within 2% of observed data. Predictions are poor for alcohol solutions.