Excess Molar Volumes and Viscosity Studies of Binary Mixtures of o-Cresol and Nonanol at Different Temperatures

Abstract

Ultrasonic velocity, density and viscosity have been measured for the binary mixtures of o-cresol and nonanol at 303.15, 308.15, 313.15 and 318.15 K and at atmospheric pressure. The experimental data obtained has been used to calculate the acoustical parameters namely adiabatic compressibility (b), free length (L_f), free volume (V_f), internal pressure (p), acoustic impedance (Z) and molar volume (V_m). The excess values like excess molar volume and excess viscosity were evaluated and the results were fitted into Redlich-Kister equation. The results were also used to explain the molecular interaction between the components of these mixtures.