Speed of Sound, Density, Viscosity and Related Thermodynamic Excess Properties of Binary Liquid Mixtures Containing Butyl Carbitol with 1-Butanol, Toluene and Diethylmalonate at 308.15 and 318.15 K

Abstract

In present communication, measurements of experimental density, viscosity and ultrasonic velocity of binary liquid mixtures of butyl carbitol with 1-butanol, toluene and diethylmalonate have been carried out at 308.15 and 318.15 K at atmospheric pressure over the entire composition range of mole fractions. To study the intermolecular interactions present in these liquid mixtures, thermodynamic parameters like VE, ΔKS, Δη, ΔLf, ΔVf and ΔZ have been calculated. The excess functions and their deviations from ideality have also been correlated using Redlich-Kister type polynomial equation by the method of least-squares. The variations of thermodynamic parameters with composition and temperature have been discussed in terms of molecular interaction in these liquid mixtures. Further, IR spectra of these liquid mixtures have also been recorded and the obtained results have been used to analyze the mixing behaviour of the components.