Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurements and Correlations of Liquid.Liquid Equilibria for Water + Ethanol + 1,1'-Oxybis(butane) + Methylbenzene or Heptane Mixtures at 298.15 K

Tang, Y.[Yanyan], Chen, Y.[Yao], Zeng, J.[Jun]
J. Chem. Eng. Data 2012, 57, 10, 2784-2791
ABSTRACT
Tie-line data were experimentally determined at 298.15 K and ambient pressure for two ternary systems of water + 1,1?-oxybis(butane) (DBE) + methylbenzene or heptane and two quaternary systems of water + ethanol + DBE + methylbenzene or heptane. The modified and extended universal quasichemical (UNIQUAC) activity coefficient models were used to correlate the experimental tie-line data. The experimental and the correlated results obtained using the modified UNIQUAC model were comparably presented in the phase diagrams for the ternary and quaternary systems measured in this work. Distribution coefficients of components were calculated to evaluate their solubility in aqueous and organic phases.
Compounds
# Formula Name
1 C8H18O dibutyl ether
2 C7H8 toluene
3 H2O water
4 C7H16 heptane
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
  • 1
  • 3
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 9
  • POMD
  • 4
  • 1
  • 3
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 9