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The subject of this study concerns the effect of temperature and Cetyltrimethyl ammonium bromide (CTABr) in the presence of tetramethylammonium bromide [(Me)4N+Br-] at different temperature using conductometric method. CTABr showed a remarkable decrease in critical micelle concentration (CMC) in the presence of [(Me)4N+Br-]. The CMC values reduced to a certain minimum in all cases, with increase in the system temperature at different concentration of [(Me)4N+Br-]. The thermodynamic parameters ( , and ) for the micelle system were estimated by applying the phase separation model while the data obtained allowed access to their usability on the micellization process. Enthalpy – entropy compensation was observed, with a constant compensation temperature of 296K.

international journal of thermodynamics

CONDUCTOMETRIC STUDIES ON THE EFFECT OF TEMPERATURE AND TETRAMETHYLAMMONIUM BROMIDE SALT ON THE MICELLIZATION OF CETYLTRIMETHYLAMMONIUM BROMIDE IN AQUEOUS MEDIUM