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

PVT Property Measurements for R143a, R125, and R32 in the Gaseous Phase

Mukoubayashi, M.[Mitsuru], Ichikura, K.[Kengo], Kano, Y.[Yuya]
J. Chem. Eng. Data 2007, 52, 5, 1925-1929
ABSTRACT
PVT property measurements for the hydrofluorocarbons R143a, R125, and R32 are presented in the gaseous phase including the region near saturation. The measurements were performed by means of magnetic suspension densimeter. One hundred and two PVT properties for R143a, 144 PVT properties for R125, and 101 PVT properties for R32 were obtained in the range of temperature from (283 to 323) K and pressures up to 3.2 MPa. The experimental uncertainties are estimated to be 10 mK for temperature, (0.74 to 0.84) kPa for pressure and (0.03 % + 0.005 kgam-3) for density. The sample purities of R143a, R125, and R32 were better than 99.99 %. The measurements are compared with the available data including the values calculated from existing equations of state.
Compounds
# Formula Name
1 C2H3F3 1,1,1-trifluoroethane
2 C2HF5 pentafluoroethane
3 CH2F2 difluoromethane
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
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Buoyancy - hydrostatic balance with magnetic suspension - two sinkers
  • 102
  • POMD
  • 2
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Buoyancy - hydrostatic balance with magnetic suspension - two sinkers
  • 144
  • POMD
  • 3
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Buoyancy - hydrostatic balance with magnetic suspension - two sinkers
  • 90