Ultrasonic Studies on Ion-Solvent Interactions of Tetra-n-butylammonium Bromide in Aqueous Solution of 1,3-Dioxolane and 2,2-Dimethoxypropane at Different Temperatures

Abstract

Tetra-n-butylammonium bromide (TBAB) is made soluble in different solvents like 10 % 1,3-dioxolane-water and 10 % dimethoxypropanewater. Ultrasonic velocity (U), density (ρ) and coefficient of viscosity (η) are determined at different temperatures i.e. at 298.15, 303.15, 308.15 and 313.15 K. These values of ultrasonic velocity (U), density (ρ) and co-efficient of viscosity (η) are used to calculate the thermo acoustic properties like isentropic compressibility (βs), molar compressibility (W), acoustic impedance (Z), molar sound velocity (R), relative association (RA), intermolecular free length (Lf), free volume (Vf), internal pressure (πi), isothermal compressibility (βT). The results obtained were analyzed to interpret the ion-ion and ion-solvent interactions occurring in the solutions.