Speed of sound, viscosity, and refractive index of multicomponent systems: analysis of experimental data from the Bertrand-Acree-Burchfield equation

Abstract

The speed of sound in and the viscosity and refractive index of two ternary mixtures (I) toluene + n-heptane + n-hexane and (II) cyclohexane + n-heptane + n-hexane, and six binary combinations of these constituents have been measured experimentally. The excess values of these properties are calculated and the results are analysed using the Bertrand-Acree-Burchfield (BAB) model. All the experimental and theoretical values are in fairly reasonable agreement.