Abstract

This paper reports the measured density and viscosity of aqueous solutions of different concentrations of antiulcer drug, sodium 2-({[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methyl}sulfinyl)benzimidazol-1-ide at 40°C. The apparent molar volumes of different solutions were computed using density data. Apparent molar volume at infinite dilution which reflects solute-solvent interaction and Sv, the parameter that represents solute-solute interaction has been determined graphically by using Masson’s equation. Viscosity data has been analyzed by Jone-Dole equation. Viscosity coefficients A and B were determined and explained in terms of solute-solute, solute-solvent interactions and structure making/breaking ability of said drug.

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