Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

In present paper, densities and viscosities of propanal, 2-propanol, 2-butanol, 2-pentanol, and their binary mixtures with propanal were measured at temperatures 293.15 to 323.15 K. From these data, excess molar volumes and deviations in viscosity were calculated. Excess molar volumes are negative over the whole concentration range and increase with rising temperature. Viscosity deviations show positive values for all studied mixtures and decrease as temperature increases. The ability of SAFT and PC SAFT equations for correlation of densities of binary mixtures and pure state was tested. The liquid density of the binary mixture was obtained accurate by both SAFT and PC SAFT models but PC SAFT equation is closely matched with the experimental data. Maximum AAD is 0.082% for SAFT and 0.043% for PC SAFT model.