Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Phase diagrams of (hexane + methanol + 2,2,2-trifluoroethanol) at three temperatures: Measurement and correlation

Kerboub, W.[Wahiba], Atik, Z.[Zadjia]
J. Chem. Thermodyn. 2009, 41, 4, 549-552
ABSTRACT
Results from gas liquid chromatography are presented for (liquid + liquid) equilibrium of the system of mixed solvents of (hexane + methanol + 2,2,2-trifluoroethanol) at the temperatures T = (288.15, 298.15, 303.15) K, and under atmospheric pressure. The system presents type (II) liquid liquid phase diagram. The NRTL and UNIQUAC equations reliably represent the measured data with an average root-meansquare deviation in phase-compositions equal to 1.2%. The binary interaction parameters for the associated (nonpolar + polar) system are estimated by means of the same equations. The temperature effect on the system miscibility is reasonably important.
Compounds
# Formula Name
1 C6H14 hexane
2 C7H16 heptane
3 CH4O methanol
4 C3H8O propan-2-ol
5 C2H3F3O 2,2,2-trifluoroethanol
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
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • 5
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 36