Salt effects on the critical micelle concentrations of nonionic amphiphiles

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

DOI:https://doi.org/10.1021/j100715a018· OSTI ID:5394362

Gordon, J E

Added inorganic electrolyte lowers the critical micelle concentration (cmc) of nonionic as well as ionic amphiphiles. The usual account of the latter case, in terms of the shielding of repulsive interactions between charged head groups cannot be applied to the former. The purpose of this study is to point out that Mukerjee's expression in fact corresponds to no common model of micellization, to present correct derivations for the mass-law and pseudophase models and to compare the results with experiment. The pseudophase model of micelle formation, although serious objections to it have been presented, accounts reasonably well (in conjunction with the McDevit-Long theory) for the effects of salt on the cmc of nonionic amphiphiles, while the mass-law model does not.

• Research Organization: Kent State Univ
• OSTI ID: 5394362
• 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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ADDITIVES
CHEMICAL PROPERTIES
CHEMISTRY
COLLOIDS
DISPERSIONS
ELECTROLYTES
EQUATIONS
EVALUATION
FLUID INJECTION
MATHEMATICAL MODELS
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OIL WELLS
SALTS
SURFACTANTS
WELLS