Thermodynamics Research Center / ThermoML | Thermochimica Acta

ABSTRACT

The excess molar volumes (VEm ), viscosity deviations ( ), and excess Gibbs energies of activation ( G*E) of viscous flowhave been investigated from densities and viscosities measurements for two ternary mixtures 1-propanol + ethyl ethanoate + cyclohexane and 1-propanol + ethyl ethanoate + benzene and four binaries at 303.15K and atmospheric pressure over the entire range of composition. The empirical equations due to Redlich Kister, Kohler, Rastogi et al., Jacob Fitzner, Tsao Smith, Lark et al., Heric Brewer, and Singh et al., have been employed to correlate VEm , , and G*E of ternary mixtures with their corresponding binary parameters. The results are discussed in terms of the molecular interactions between the components of the mixtures. Further, the ERAS model has been examined to estimate VEm for the binary and ternary mixtures and the results are compared with the experimental data.