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

Isochoric p-rho-T Measurements for trans-1,3,3,3-Tetrafluoropropene [R-1234ze(E)] and Trifluoroiodomethane (R13I1) at Temperatures from (205 to 353) K under Pressures up to 40 MPa

Klomfar, J.[Jaroslav], Souckova, M.[Monika], Patek, J.[Jaroslav]
J. Chem. Eng. Data 2012, 57, 11, 3270-3277
ABSTRACT
Experimental liquid phase data on the pressure density temperature relation are reported for two refrigerants with considerably low global warming potential (GWP) and zero ozone depletion potential (ODP). The data for trans-1,3,3,3-tetrafluoropropene [R-1234ze(E)] and trifluoroiodomethane (CF3I) were obtained with a constant volume apparatus at temperatures from (205 to 353) K and from (208 to 353) K, respectively, and at pressures from (1 to 40) MPa. The data for R-1234ze(E) substantially extend the temperature pressure region covered with experimental p ? T data, and for trifluoroiodomethane they are the first p ? T data available in the open literature. The combined uncertainty at the 0.95 confidence level of the reported density data takes its maximum value at the lower end of the temperature interval; 1.4 kg*m 3 for R-1234ze(E) and 2.4 kg*m 3 for CF3I, which is about 10 3? for both substances. The root-mean-square deviation of the reported data from the Helmholtz free energy equation of state fitted to them is for R-1234ze(E) 0.46 kg*m 3 (4 * 10 4 ?) and 0.32 kg*m 3 (1.6 * 10 4 ?) for trifluoroiodomethane.
Compounds
# Formula Name
1 C3H2F4 trans-1,3,3,3-tetrafluoropropene
2 CF3I trifluoroiodomethane
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
  • Pycnometric method
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • ISOCHOR
  • 39
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • ISOCHOR
  • 90