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

Measurement of Vapor-Liquid Equilibria for the Binary Mixture of Pentafluoroethane (HFC-125) + Propane (R-290)

Lim, J. S.[Jong Sung], Park, J. -Y.[Ji-Young], Lee, K.-S., Kim, J. -D.[Jae-Duck], Lee, B. G.[Byung Gwon]
J. Chem. Eng. Data 2004, 49, 4, 750-755
ABSTRACT
Isothermal vapor-liquid equilibrium data for the binary mixture of pentafluoroethane (HFC-125) + propane (HC-290 or R-290) at six temperatures between (268.15 and 313.15) K were measured by using a circulation-type equilibrium apparatus. The experimental data were correlated with the Carnahan- Starling-De Santis equation of state (EOS) and the Peng-Robinson EOS using the Wong-Sandler mixing rules. It was confirmed that the data calculated by these EOSs have good agreement with experimental data. In this system, strong positive azeotropic behaviors were observed over the whole temperature range studied here.
Compounds
# Formula Name
1 C2HF5 pentafluoroethane
2 C3H8 propane
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)
  • 6
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 6
  • POMD
  • 2
  • 1
  • Azeotropic composition: mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • By X=Y
  • 6
  • POMD
  • 2
  • 1
  • Azeotropic composition: mole fraction - 1 ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • By X=Y
  • 6
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 42
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 42