Temperature and pressure dependence of the volumetric properties of binary mixtures containing polyhaloalkanes

Abstract

Densities of binary mixtures of 1,1,2-trichlorotrifluoroethane + dibromomethane, + bromochloromethane, or + bromotrichloromethane were measured over their entire composition ranges at 288.15 and 308.15 K. Thermal expansion coefficients (α) and excess molar volumes (VEm) were calculated. Moreover, densities at 298.15 K and pressures up to 80 bar (1 bar = 100 kPa) were determined for these same mixtures. Isothermal compressibilities (KT) of the pure liquids and their mixtures were obtained.Key words: density, excess volume, thermal expansion coefficient, isothermal compressibility.