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The effect of amino acids (L-glycine, L-alanine, L-phenylalanine, L-serine, L-leucine, L-aspartic acid, L-lysine, L-methionine) on the micellization, surface activity, volumetric and viscometric properties of the cationic surfactant cetylpyridinium bromide in aqueous solution was studied. The critical micelle concentration and free energy of micellization were evaluated and discussed. The surface excess concentration, the minimum area per molecule, the surface pressure at the critical micelle concentration and the standard free energy of adsorption were obtained from the surface activity studies. The behavior of standard partial molar volume is discussed. The viscosity data were analyzed by Jones-Dole semi-empirical equation for both the premicellar and postmicellar regions.

tenside surfactants detergents

Micellar Parameters of Cationic Surfactant Cetylpyridinium Bromide in Aqueous Solutions of Amino Acids at Different Temperatures: Conductometric, Surface Tension, Volumetric and Viscosity Study