Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor liquid equilibria for the n-hexane + 2-isopropoxyethanol and n-heptane + 2-isopropoxyethanol systems

Lee, Y.[Yongjin], Jang, S.[Sunghyun], Shin, M. S.[Moon Sam], Kim, H.[Hwayong]
Fluid Phase Equilib. 2009, 276, 1, 53-56
ABSTRACT
Vapor liquid equilibria (VLE) for the n-hexane + 2-isopropoxyethanol and n-heptane + 2- isopropoxyethanol (at 60, 80, and 100 kPa) systems were measured. Two systems present positive deviations from ideal behavior. And the system n-heptane + 2-isopropoxyethanol shows a minimum boiling azeotrope at all pressures. Experimented data have been correlated with the two term virial equation for vapor-phase fugacity coefficients and the three suffix Margules equation, Wilson, NRTL, and UNIQUAC equations for liquid-phase activity coefficients. Experimental VLE data show excellent agreements with models.
Compounds
# Formula Name
1 C7H16 heptane
2 C6H14 hexane
3 C5H12O2 2-isopropoxyethanol
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 3
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 3
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 3
  • POMD
  • 3
  • 2
  • Boiling temperature at pressure P, K ; Gas
  • Mole fraction - 2; Gas
  • Pressure, kPa; Gas
  • Gas
  • Liquid
  • Ebulliometric method (Recirculating still)
  • 34
  • POMD
  • 3
  • 2
  • Mole fraction - 2 ; Liquid
  • Mole fraction - 2; Gas
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Chromatography
  • 34
  • POMD
  • 3
  • 1
  • Boiling temperature at pressure P, K ; Gas
  • Mole fraction - 1; Gas
  • Pressure, kPa; Gas
  • Gas
  • Liquid
  • Ebulliometric method (Recirculating still)
  • 41
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Mole fraction - 1; Gas
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Chromatography
  • 41