Thermophysical properties of 2,2,2-trifluoroethanol plus tetraethylene glycol dimethyl ether

Isothermal P,x data from 303.15 K to 423.15 K, liquid densities from 283.15 K to 423.15 K, and dynamic viscosities from 343.15 K to 393.15 K for the binary system 2,2,2-trifluoroethanol + tetraethyleneglycol dimethyl ether were measured. The vapor-liquid equilibrium (VLE)data were measured using a static apparatus. VLE data were correlated by the five-parameter NRTL equation,while density and kinematic viscosity data were correlated with temperature and liquid composition using empirical equations. The I viscosity data used in the correlation cover the range of 293.15-393.15 K. VLE data indicate that this binary system exhibits Targe negative deviations from Raoult's law. These mixtures present large exothermic excess molar enthalpies. The excess molar enthalpy calculated using the Gibbs-Helmholtz equation and the NRTL parameters was compared with experimental data existing in the literature.