Vapour—liquid equilibrium of the non-azeotropic refrigerant mixture formed by chlorofluoromethane and 1,1,1,2-tetrafluoroethane

Abstract Isothermal vapour—liquid equilibrium for the chlorofluoromethane (HCFC22)—1,1,1,2-tetrafluoroethane (HFC134a) system was measured at 273.16, 298.16 and 323.16 K, by the static method. The data obtained were correlated with use of the Redlich—Kwong—Soave equation of state with one interaction parameter.