Isothermal Vapor-Liquid Equilibrium Data for the Binary Systems Consisting of 1,1,2,3/3,3-Hexafluoro-1-propene and Either Methylcyclohexane, Cyclohexane, n-Hexane, 2-Methyltetrahydrofuran, or 2,2,3,3,4,4,4-Heptafluoro-1-butanol

摘要

Isothermal vapor-liquid equilibrium data for five binary systems including 1,1,2,3,3,3-hexafluoro-1-propene and either 2,2,3,3,4,4,4-heptafluoro-1-butanol, cyclohexane, methylcyclohexane, 2-methyltetrahydrofuran, or n-hexane were experimentally measured. The data were measured using the "static-analytic" method isothermally at 313.15 K and between pressures of 0.401 and 1.075 MPa. The expanded uncertainties for pressure and temperature were estimated to be 0.05 K and 0.007 MPa, respectively. On average, the expanded uncertainties for the liquid and vapor phase compositions were 0.008 and 0.002, respectively. The experimental data were correlated using the Peng-Robinson equation of state with the Mathias-Copeman α function and the Wong-Sandler mixing rule. The Wong-Sandler mixing rule was coupled with the nonrandom two-liquid activity coefficient model.