(VAPOR + LIQUID) EQUILIBRIA AND EXCESS MOLAR VOLUMES OF (1,1,2-TRICHLOROTRIFLUOROETHANE (FREON-113) + AN OXYGENATED SOLVENT OR NORMAL-HEXANE)

Isothermal (vapour + liquid) equilibria and excess molar volumes were determined for {1,1,2-trichlorotrifluoroethane (freon 113) + propanone or methyl ethanoate or diisopropyl ether or tetrahydrofuran or n-hexane}. The excess molar volumes were calculated from density measurements at 298.15 K. The isothermal (vapour + liquid) equilibria (p, T, x, y) were measured at 308.15 K by a dynamic method. The results obtained for the (vapour + liquid) equilibria were verified by effective statistical procedures and used to calculate activity coefficients and excess molar Gibbs energies. Limiting activity coefficients, excess molar enthalpies, and excess molar heat capacities which had been measured previously were correlated simultaneously with the (vapour + liquid) equilibria by the extended Wilson equation according to the principle of maximum likelihood. © 1991 Academic Press Limited All rights reserved.