Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurement of Vapor-Liquid Equilibria for the Pentafluoroethane + Propene Binary System from (263.15 to 323.15) K

Hou, S.-X.[Shu-Xin], Duan, Y. -Y.[Yuan-Yuan]
J. Chem. Eng. Data 2010, 55, 9, 3184-3188
ABSTRACT
Isothermal vapor-liquid equilibrium (VLE) data were measured for the pentafluoroethane (CAS No. 354-33-6, R125) + propene (CAS No. 115-07-1, R1270) binary systems at five temperatures from (263.15 to 323.15) K using a circulation-type VLE apparatus. The uncertainties of the measured data were estimated to be +- 0.005 K for temperature, +- 600 Pa for pressure, and +- 0.001 in mole fraction for both the liquid and the vapor phases, respectively. The experimental data sets for the measured system were tested for thermodynamic consistency using procedures for high-pressure systems. The VLE data were correlated using the Peng-Robinson equation of state combined with the classical mixing rules. The calculated results agree well with the experimental data. The compositions of the azeotropes at each temperature for the binary system were also evaluated.
Compounds
# Formula Name
1 C2HF5 pentafluoroethane
2 C3H6 propene
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 5
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 5
  • POMD
  • 2
  • 1
  • Azeotropic pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • XY:UFactor:2
  • 5
  • POMD
  • 2
  • 1
  • Azeotropic composition: mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • By X=Y
  • 5
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 57
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • CHROM:UFactor:2
  • 47