Relative association and free volume to study molecular interaction in dichlofenac sodium in aqueous solution

Sunanda S. Aswale, Shashikant

Abstract

Ultrasonic velocity and density of aqueous solution of Dichlofenac sodium is reported at different temperatures, concentrations and at different frequencies. Relative association, free volume, Rao’s constant and Wada’s constant were calculated from these data. The acoustic and thermodynamic properties are used to study molecular interaction existing in the solution.