Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Fluid phase equilibria in the binary system trifluoromethane + 1-phenyloctane

Bogatu, C.[Cristina], Geana, D.[Dan], Vilcu, R.[Rodica], Duta, A.[Anca], Poot, W.[Wim], de Loos, T. W.[Theo W.]
Fluid Phase Equilib. 2010, 295, 2, 186-193
ABSTRACT
Vapour-liquid, liquid-liquid and liquid-liquid-vapour equilibria in the binary system consisting of trifluoromethane (refrigerant R23) and 1-phenyloctane were determined in the temperature range T = 250-400 K and at pressures up to 15 MPa. The experiments were carried using a Cailletet apparatus according to the synthetic method. The investigated system exhibits type III phase behaviour according to the classification of van Konynenburg and Scott. Modelling of the equilibrium data was done with the Peng Robinson (PR) and Soave Redlich Kwong (SRK) equations of state coupled with classical van der Waals mixing rules. In order to predict the global phase behaviour of the system, one single set of binary parameters was used. The topology of the phase behaviour was correctly reproduced.
Compounds
# Formula Name
1 CHF3 trifluoromethane
2 C14H22 octylbenzene
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
  • Critical pressure, kPa ; Liquid mixture 1
  • Liquid mixture 1
  • Gas
  • Liquid mixture 2
  • OTHER:::sMethod:static Cailletet method
  • 1
  • POMD
  • 1
  • 2
  • Critical temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Gas
  • Liquid mixture 2
  • OTHER::sMethod:static Cailletet method
  • 1
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Gas
  • static Cailletet method
  • 14
  • POMD
  • 1
  • 2
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • static Cailette method
  • 1
  • POMD
  • 1
  • 2
  • Critical temperature, K ; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • static Cailletet method
  • 1
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • static Cailletet method
  • 62
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • static Cailletet method
  • 109