Excess parameters of binary mixtures of anisaldehyde with o-cresol, m-cresol and p-cresol at T = (303.15, 308.15, 313.15, and 318.15) K

Abstract

The density, ultrasonic velocity, and viscosity of binary mixtures of (anisaldehyde+o-cresol, or +m-cresol, or +p-cresol) have been measured over the entire range of composition at T=(303.15, 308.15, 313.15, and 318.15)K. Using these data, various thermo-acoustic parameters such as deviation in adiabatic compressibility, Δβ, excess molar volume, VE, viscosity deviation, Δη and excess Gibb’s free energy of activation for viscous flow, ΔG∗E have been calculated. The calculated deviation and excess functions have been fitted to the Redlich–Kister polynomial equation. The negative and positive values of deviation or excess thermo-acoustic parameters observed have been explained on the basis of the intermolecular interactions present in these mixtures.