Salt effects on the critical micelle concentrations of nonionic surfactants

Journal Article · Thu Oct 15 04:00:00 EDT 1970 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100715a019· OSTI ID:5464308

Mukerjee, P

Gordon has criticized the use of the mass-action model of micelle formation in the previous analysis of the effect of inorganic salts on the critical micelle concentrations (cmc) of nonionic surfactants and has suggested that the 2-phase model of micelle formation accounts reasonably well for the salt effects. This discussion is concerned with the nature of the assumptions involved in the application of the mass- action model and the limitations of the 2-phase model in describing the salt effects. Although the 2-phase and the mass-action models give similar results for the salt effects on the cmc's of octyl glucoside and alkyl betaines, the salt effects on polyoxyethylene-type nonionic surfactants are in poor accord with the 2-phase model of micelle formation, various arguments against which have been summarized elsewhere. The mass-action model, as used earlier, appears to be better. (15 refs.)

• Research Organization: Wisconsin Univ
• OSTI ID: 5464308
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 74:21; ISSN JPCHA
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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CHEMISTRY
COLLOIDS
COMPARATIVE EVALUATIONS
DISPERSIONS
FLUID INJECTION
MATHEMATICAL MODELS
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
SALTS
SURFACTANTS
WELLS