Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

Temperature-composition values of liquid-solid equilibrium were measured calorimetrically and tabulated for 10 binary solutions of these 5 organic carbonates: ethylene carbonate, propylene carbonate, dimethyl carbonate, ethyl methyl carbonate, and diethyl carbonate. Further, heat capacity (Cp) and temperature (Tm) and enthalpy Hfus of fusion were measured for the five carbonates, with the Cp values fitted with polynomial functions. Based on these Tm and Hfus values and polynomial functions of Cp, the binary phase diagrams were fitted with thermodynamic nonideal solution models for an evaluation of the model parameters. The results of the evaluation were tabulated and discussed as an indication of the nature and strength of the molecular interactions between different carbonates. These interactions were shown to determine many of the important features of the binary phase diagrams.