Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

PVTx measurements for N2O+CH3F, N2O+CH2F2, and N2O+ CHF3 binary systems

Di Nicola, G., Giuliani, G., Polonara, F., Stryjek, R.
Fluid Phase Equilib. 2005, 230, 1-2, 81-89
ABSTRACT
Isochoric PVTx measurements have been performed for the binary system of nitrous oxide +CH3F (R41), +CH2F2 (R32), and +CHF3 (R23) using a new experimental set-up. The experiments covered both the two-phase region and the superheated vapor region and were performed within the temperature range 214 358K and within a pressure range from 270 to 5600 kPa. Data have been collected for not less than four compositions for each system. The vapor liquid equilibrium data were derived correlating the experimental data by means of the Carnahan Starling De Santis equation of state. The studied systems show a positive deviation from the Raoult s law. The results obtained were compared with the Burnett PVTx data. The two methods showed a mutual consistency within an acceptable margin of error. No other experimental PVTx data were found in the literature for these binary systems.
Compounds
# Formula Name
1 N2O nitrous oxide
2 CHF3 trifluoromethane
3 CH2F2 difluoromethane
4 CH3F fluoromethane
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
  • 2
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • ISOCHOR
  • 64
  • POMD
  • 3
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 43
  • POMD
  • 4
  • 1
  • Molar volume, m3/mol ; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Other PVT measurement
  • 50