Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor liquid equilibria of the binary system maleic anhydride and di-isobutyl hexahydrophthalate at 2.67, 5.33 and 8.00 kPa

Liu, Z.[Zhihua], Gao, Z.[Zhenghong], Liu, R.
Fluid Phase Equilib. 2005, 233, 1, 23-27
ABSTRACT
Isobaric vapor liquid equilibrium (VLE) data for the binary system maleic anhydride (MAN) + di-isobutyl hexahydrophthalate (DIBE) at 2.67, 5.33 and 8.00 kPa were measured with a modified ebulliometer. Also, saturated vapor pressures of pure DIBE were measured and Antoine constants were obtained. These data were used to calculate equilibrium vapor and liquid compositions for this binary system using the NRTL model. Prediction of the VLE was done with the universal quasi-chemical functional-group activity coefficients (UNIFAC) model. The predicted results generally agree with those from experiment.
Compounds
# Formula Name
1 C4H2O3 maleic anhydride
2 C16H28O4 diisobutyl hexahydrophthalate
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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • EBULLIO:UFactor:32
  • 15
  • POMD
  • 1
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • EBULLIO:UFactor:2
  • 27