Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2017 Vol: 9 Issue: 6

Effect of Surfactant CTAB on the Partial Molar Volumes and Compressibilities of Aqueous Solutions of Sodium Salicylate at 30?°C


The partial molar volumes and compressibilities of an anti-inflammatory drug sodium salicylate in aqueous-CTAB solutions have been determined from volumetric and ultrasonic data using standard methods. The refractive indices of these ternary solutions were measured and atomic polarizations were calculated at 30°C. The specific acoustic impedance (Z) and relative association (RA) of studied solutions are also calculated. Partial molar volumes and compressibilities have been explained in terms of drug-solvent and drug-surfactant interactions. CTAB showed significant effect on the partial molar volumes and compressibilities of aqueous solutions of sodium salicylate.