PVTx property measurements in the gaseous phase for difluoromethane (1) + pentafluoroethane (2) (R32 + R125) at x1 = 0.25 (w1 = 12.62 %), x1 = 0.5 (w1 = 30.24 %), and x1 = 0.75 (w1 = 56.53 %) are reported. The measurements were performed by means of a magnetic suspension densimeter. 298 PVTx values for R32 + R125 mixtures were obtained over the range of temperatures (283 to 313) K and at pressures up to 2.4 MPa including the region near saturation. The experimental uncertainties are estimated to be 10 mK for temperature, 0.76 kPa for pressure, (0.03 % + 0.005 kg*m-3) for density, and 0.18 % for mole fraction. The purities of R32 and R125 were both 99.99 %. The measurements are compared with the available data including existing equations of state.
Compounds
#
Formula
Name
1
CH2F2
difluoromethane
2
C2HF5
pentafluoroethane
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
2
Mass density, kg/m3 ; Gas
Mole fraction - 1; Gas
Temperature, K; Gas
Pressure, kPa; Gas
Gas
Buoyancy - hydrostatic balance with magnetic suspension - two sinkers