Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor liquid and vapor liquid liquid equilibrium data for the system water + ethanol + cyclohexane

Gomis, V.[Vicente], Font, A., Pedraza, R., Saquete, M. D.
Fluid Phase Equilib. 2005, 235, 1, 7-10
ABSTRACT
Isobaric vapor liquid (VLE) and vapor liquid liquid equilibria (VLLE) were measured for the ternary systemwater + ethanol + cyclohexane at 101.3 kPa. The experimental determination was carried out in a dynamic equilibrium still with circulation of both the vapor and liquid phases, equipped with an ultrasonic homogenizer. The experimental data demonstrated the existence of a ternary heterogeneous azeotrope at 335.6K with a composition of 0.188, 0.292, 0.520 mole fraction of water, ethanol and cyclohexane, respectively. The experimental data were compared with those obtained using UNIFAC and NRTL models with parameters taken from literature.
Compounds
# Formula Name
1 H2O water
2 C2H6O ethanol
3 C6H12 cyclohexane
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
  • 3
  • 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2 ; Gas
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Gas
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Gas
  • Liquid mixture 2
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • 11
  • POMD
  • 2
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Mole fraction - 1 ; Gas
  • Mole fraction - 2 ; Gas
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • CHROM:UFactor:4
  • 27