Phase equilibrium for the binary azeotropic mixture of trifluoroiodomethane (R13I1)+1,1,2,2-tetrafluoroethane (R134) at temperatures from 258.150 to 283.150K

摘要

Isothermal vapor-liquid equilibrium data of binary trifluoroiodomethane (R13I1) + 1,1,2,2-tetrafluoroethane (R134) systems at 258.150, 263.150, 273.150 and 283.150. K were measured by a recirculation apparatus with visual windows. The measured uncertainties of the temperature, pressure, and compositions are less than ±5. mK, ±0.0005. MPa, and ±0.005, respectively. All the experimental data were correlated by the Peng-Robinson (PR) EoS with the Huron-Vidal (HV) mixing rule utilizing the non-random two-liquid (NRTL) activity coefficient model. Azeotropic behavior can be found at the measured temperature range.