Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Gas phase PVTx properties for binary mixtures of HFC-161 and HFC-143a

Hong, R.-h.[Rong-hua], Chen, Q.[Qi], Chen, G.-m.[Guang-ming]
Fluid Phase Equilib. 2007, 259, 2, 153-156
ABSTRACT
An experimental study of the pressure volume temperature composition (PVTx) properties in the gas phase for binary mixtures of ethyl fluoride (HFC-161) and 1,1,1-trifluoroethane (HFC-143a) was conducted in the range of temperatures from 308.138 to 403.205 K, pressures from 1077.3 to 4684.3 kPa, densities from 0.5144 to 2.0224 mol dm-3, and compositions from 0.3852 to 0.8703 mole fractions of HFC-161. The measurements were performed with an isochoric cell apparatus. The uncertainties in the present work were estimated to be +-1.5 kPa for pressure, +-6mK for temperature, and +-0.15% for composition. On the basis of the experimental PVTx property data, a truncated virial equation of state was developed for the binary HFC-161/143a system. This equation reproduced the experimental data in the gas phase within +-0.247% in pressure and within +-0.254% in density.
Compounds
# Formula Name
1 C2H5F fluoroethane
2 C2H3F3 1,1,1-trifluoroethane
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
  • Amount density, mol/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
  • 130