Vapor–liquid equilibrium data for the (hexafluoroethane +1,1,1,2-tetrafluoroethane) system at temperatures from 263 to 353 K and pressures up to 4.16 MPa

Isothermal vapor–liquid equilibrium data are reported for the binary system of hexafluoroethane and 1,1,1,2-tetrafluoroethane in the temperature range 263–353 K and in the pressure range 0.2–4.2 MPa. A reliable “static-analytic” method taking advantage of two online micro-capillary ROLSI™ samplers is used for all the measurements. The data are correlated using our in-house (ThermoSoft) thermodynamic software based on the Peng–Robinson equation of state, the Mathias–Copeman alpha function, the Wong–Sandler mixing rules, and the NRTL model.