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

Vapor Pressures of 1,1,1,3,3-Pentafluoropropane (HFC-245fa) and 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea)

Wang, Z.-W.[Zhong-Wei], Duan, Y. -Y.[Yuan-Yuan]
J. Chem. Eng. Data 2004, 49, 6, 1581-1585
ABSTRACT
The vapor pressures of 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) and 1,1,1,3,3-pentafluoropropane (HFC-245fa), two ozone-friendly fluorinated propane derivatives, were measured with a modified Burnett apparatus. The vapor pressures were measured at temperatures from (253 to 373) K and pressures from (87 to 2824) kPa for HFC-227ea, and at temperatures from (255 to 393) K and pressures from (21 to 1950) kPa for HFC-245fa. The measurement uncertainties were estimated to be within and within . The Wagner-type vapor pressure equations were used to correlate the experimental data for HFC-227ea and HFC-245fa, respectively. The results were also compared with available literature data.
Compounds
# Formula Name
1 C3HF7 1,1,1,2,3,3,3-heptafluoropropane
2 C3H3F5 1,1,1,3,3-pentafluoropropane
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
  • 68
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 79