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A reduced adsorption isotherm for surfactant mixtures
Author(s) -
Scamehorn John F.,
Schechter Robert S.,
Wade William H.
Publication year - 1983
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02702115
Subject(s) - adsorption , pulmonary surfactant , kaolinite , sorption isotherm , chemistry , chromatography , chemical engineering , thermodynamics , inorganic chemistry , organic chemistry , mineralogy , biochemistry , physics , engineering
Abstract The adsorption of surfactants of similar structure on mineral oxide surfaces can be described by a single adsorption isotherm when plotted against reduced concentration. The total adsorption of mixtures of these surfactants and the adsorption of each individual surfactant in the mixture can be estimated from this reduced adsorption isotherm. No mixture data are required for this calculation. The method of calculating the reduced concentration for pure surfactants and surfactant mixtures is discussed. Adsorption data of three isomerically pure alkylbenzene sulfonates and binary mixtures of these surfactants on alumina and kaolinite is used to illustrate this correlation.