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Ultrasonic Studies on 1, 4-Dioxane and Methanol Binary Liquid Mixtures at Different Temperatures

A. G. Peshwe and K. U. Gore

Densities and ultrasonic velocities of binary mixtures of 1,4-dioxane with polar solvent viz methanol have been measured over entire composition range at 303.15, 308.15, 313.15 and 318.15 K. From experimental data, various properties viz isentropic compressibility (Ks), intermolecular free length (Lf), acoustical impendence (Z), and excess functions viz excess isentropic compressibility (KsE), excess intermolecular free length (Lf E), excess acoustical impendence (ZE) have been determined. Further theoretical values of ultrasonic velocities of the binary mixtures are calculated using Nomoto’s Model. On the basis of values of various excess properties, the nature of molecular interactions between the components of mixtures has been explained.