Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid liquid equilibria of (water + 2,3-butanediol + 2-ethyl-1-hexanol) at several temperatures

Gilani, H. G., Khiati, G., Haghi, A. K.
Fluid Phase Equilib. 2006, 247, 1-2, 199-204
ABSTRACT
In this work liquid?liquid equilibrium (LLE) data (water + 2,3-butanediol + 2-ethyl-1-hexanol) were measured under atmospheric pressure and at different temperature ranges of 300.2, 305.2, 310.2, and 315.2 K. The UNIQUAC model was able to adequately represent the type I phase behavior observed over this temperature ranges in this ternary system. Using the experimental results, the values of the interaction parameters between each pair of components in the system were obtained for this model. The results obtained in this work were satisfactory and they were in accordance with root means square deviation (RMSD%). The root mean square deviation between the experimental and calculated mole percents was 6.26%. The mutual solubility of 2-ethyl-1-hexanol and water was also studied by addition of 2,3-butanediol at different temperatures.
Compounds
# Formula Name
1 C4H10O2 2,3-butanediol
2 H2O water
3 C8H18O 2-ethyl-1-hexanol
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
  • 3
  • 1
  • 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 36