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

Experimental Measurement of Vapor Pressures and Densities of Pure Hexafluoropropylene

Coquelet, C.[Christophe], Ramjugernath, D.[Deresh], Madani, H.[Hakim], Valtz, A.[Alain], Naidoo, P.[Paramesperi], Meniai, A. H.[Abdeslam Hassen]
J. Chem. Eng. Data 2010, 55, 6, 2093-2099
ABSTRACT
Hydrofluoroalkenes, like hexafluoropropylene, can be considered as new fluids for refrigeration systems, and consequently volumetric and critical property data are required. In this study a vibrating-tube densitometer technique was used to determine densities at 10 different temperatures between (263 and 362) K and pressures between (0.0009 and 10) MPa. The experimental uncertainties are +- 0.0005 MPa for pressure, +- 0.02 K for the temperature, and +- 0.05 % for vapor and liquid densities. Critical properties have been determined by direct measurement and utilization of experimental densities considering scaling laws. The Wagner, Span and Wagner, Peng-Robinson, and translated Peng-Robinson equations of state are used to correlate the data.
Compounds
# Formula Name
1 C3F6 hexafluoropropene
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
  • Closed cell (Static) method
  • 31
  • POMD
  • 1
  • Mass density, kg/m3 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Vibrating tube method
  • 2160
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 2110