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

Thermodynamic Property Measurements for Trifluoromethyl Methyl Ether and Pentafluoroethyl Methyl Ether

Kayukawa, Y.[Yohei], Hasumoto, M.[Masaya], Hondo, T.[Takashi], Kano, Y.[Yuya], Watanabe, K.[Koichi]
J. Chem. Eng. Data 2003, 48, 5, 1141-1151
ABSTRACT
PVT properties are presented for both the gas-phase and liquid-phase, vapor pressures and saturated liquid densities for hydrofluoroether (HFE) refrigerants, trifluoromethyl methyl ether (CF3OCH3) and pentafluoroethyl methyl ether (C2F5OCH3), that were obtained with a Burnett apparatus and a vibratingtube densimeter. A total of 250 liquid densities and 70 gas-phase PVT properties for CF3OCH3 and 281 liquid densities and 125 gas-phase PVT properties for C2F5OCH3 were obtained in wide ranges of temperature (240 to 380) K and pressure up to 7 MPa with a rapid density measurement system with a vibrating-tube densimeter. For CF3OCH3, 109 gas-phase PVT properties were obtained with a Burnett apparatus at the temperatures (300 to 380) K and up to nearly the critical density. On the basis of the present measurements, we have also developed thermodynamic models to complement the experimental data. Equations of state for the liquid phase and truncated virial equations of state are discussed in this paper, as well as a couple of correlations for vapor pressures and saturated-liquid densities.
Compounds
# Formula Name
1 C2H3F3O trifluoromethoxymethane
2 C3H3F5O methyl pentafluoroethyl ether
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 ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • VIBTUB:UFactor:32
  • 24
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:8
  • 239
  • POMD
  • 1
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • VIBTUB:UFactor:8
  • 81
  • POMD
  • 1
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Burnett expansion method
  • 122
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • VIBTUB:UFactor:8
  • 27
  • POMD
  • 2
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • VIBTUB:UFactor:4
  • 7
  • POMD
  • 2
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • VIBTUB:UFactor:8
  • 124
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:8
  • 281