Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

PVTx measurements in the gas phase for binary mixtures of HFC-161 and HFC-227ea

Chen, Q.[Qi], Hong, R.-h.[Rong-hua], Chen, G.-m.[Guang-ming]
Fluid Phase Equilib. 2008, 269, 1-2, 113-116
ABSTRACT
The gaseous PVTx properties of ethyl fluoride (HFC-161) + 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) mixtures were measured at temperatures from 318.180 to 403.205K and corresponding pressures from 961.3 to 3129.8 kPa using the isochoric method. The uncertainties in the present measurements were estimated to be +-1.5 kPa for pressure and +-6mK for temperature. On the basis of the experimental PVTx property data, a truncated virial equation of state was developed for the binary HFC-161/227ea system. This equation reproduced the experimental data in the gas phase within +-0.164% in pressure and within +-0.178% in density.
Compounds
# Formula Name
1 C2H5F fluoroethane
2 C3HF7 1,1,1,2,3,3,3-heptafluoropropane
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
  • 2
  • Mass density, kg/m3 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • ISOCHOR
  • 117