Molecular interaction study on binary mixtures of dimethyl sulphoxide with benzene, carbon tetrachloride and toluene from the excess properties of ultrasonic velocity, viscosity and density

Ultrasonic velocity, viscosity and density of binary mixtures of dimethyl sulphoxide with benzene, carbon tetrachloride and toluene have been measured over the entire composition of the mixtures at 303.15K. Excess isentropic compressibility β s E , excess inter-molecular free length L f E , excess acoustic impedance Z E , excess molar volume V E and excess viscosity, η E have been calculatedfrom the experimental data. The results are discussed in terms of molecular interactions between the component liquids in the different systems. The nature of the variation of these excess parameters provides information about the types of interaction taking place in these binary systems.