Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Liquid density of HFE-7000 and HFE-7100 from T = (283 to 363) K at pressures up to 100 MPa

Qi, H.[Haiyan], Fang, D.[Dan], Meng, X.[Xianyang], Wu, J.[Jiangtao]
J. Chem. Thermodyn. 2014, 77, 131-136
ABSTRACT
In this paper, liquid densities for HFE-7000 (1-methoxyheptafluoropropane) and HFE-7100 (methoxynonafluorobutane) are reported in the temperature range from (283 to 363) K and pressures up to 100 MPa. The measurements were conducted with a high pressure vibrating-tube densimeter with combined expanded uncertainties (k = 2) of 16 mK in temperature, 0.062 MPa (p less than 60 MPa) and 0.192 MPa (60 MPa less than p less than 100 MPa) in pressure, and 0.6 kg m 3 in density. The experimental densities were correlated to the modified Tait equation with an absolute average percentage deviation of 0.019% and 0.034% for HFE-7000 and HFE-7100, separately. In addition, the isothermal compressibility and isobaric thermal expansivity have been derived from these density data.
Compounds
# Formula Name
1 C2H2F4 1,1,1,2-tetrafluoroethane
2 C4H3F7O heptafluoropropyl methyl ether
3 C5H3F9O methyl nonafluoroisobutyl ether
4 C5H3F9O 1-methoxy-nonafluorobutane
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 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 25
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 138
  • POMD
  • 4
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Vibrating tube method
  • 141