An experimental study of the pressure volume temperature-composition (PVTx) properties in the gas phase for binary mixtures of 2,3,3,3-tetrafluoropropene (HFO-1234yf)+ 1,1,1,2-tetrafluoroethane (HFC-134a) was conducted in the range of temperatures from 298.58 to 403.24 K, pressures from 567.5 to 3171.2 kPa, densities from 0.258 to 1.258 mol dm 3, and compositions from 0.0380 to 0.8641 mole fractions of HFC-134a. The measurements were performed with an isochoric cell apparatus. The uncertainties in the present work were estimated to be 1.5 kPa for pressure, 6 mK for temperature, and 0.15% for composition. On the basis of the experimental PVTx property data, a truncated virial equation of state was developed for the binary HFO-1234yf/HFC-134a system. This equation reproduced the experimental data in the gas phase within 0.20% in pressure and within 0.23% in density.
Compounds
#
Formula
Name
1
C3H2F4
2,3,3,3-tetrafluoro-1-propene
2
C2H2F4
1,1,1,2-tetrafluoroethane
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.