Volumetric and Viscometric Studies of Molecular Interactions of Binary Liquid Mixtures of Styrene with Acetone and Dimethylsulphoxide at Different Temperatures

The present work reports the results of densities, , viscosities, , ultrasonic speeds, u, and refractive indices, n, of pure styrene (STY), acetone (ACT) and dimethylsulphoxide (DMSO) and of their binary liquid mixtures over the entire composition range at 298.15, 303.15, 308.15, and 313.15K. The excess molar volumes, VE, excess intermolecular free lengths, [image omitted], deviations in isentropic compressibilities, ks, viscosities, , and in refractive indices, n were calculated from the experimental data. Partial molar volumes, [image omitted], and partial molar compressibilities, [image omitted], of ACT and DMSO in styrene at infinite dilution and at different temperatures have been evaluated. Apart from using density data for the calculation of VE, excess molar volumes have also been estimated by using the Flory's statistical theory and refractive index measurements.