Abstract
In this paper, isothermal (vapor+liquid) equilibrium (VLE) values for {trifluoroiodomethane (R13I1)+1,1-difluoroethane (R152a)} at T=(258.150 to 283.150)K are presented. The experimental apparatus was based on a vapor-recirculation method. The VLE measurements were regressed by the Peng–Robinson equation of state with two models, the Van der Waals mixing rules and the Huron–Vidal mixing rules using the NRTL activity coefficient model. The newly measured VLE values satisfied the thermodynamic consistency test. The results have led to that the two models selected are both suitable for the description of the binary system. Azeotropic behavior can be found for the system measured.
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