Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibrium of water + acetic acid + butyl butyrate at 298 K and 1 atmosphere

Sofiya, K., Karunanithi, B.
Fluid Phase Equilib. 2015, 403, 114-117
ABSTRACT
The liquid-liquid equilibrium (LLE) of the ternary system water + acetic acid + butyl butanoate has been determined experimentally at room temperature. The phase diagrams were obtained by determining the solubility and tie-line data. GCEOS, NRTL and UNIQUAC models were used to predict the LLE data with a root-mean-square deviation value of 0.1314, 0.0938 and 0.2955, respectively. The reliability of the experimental tie-line data were obtained by Othmer-Tobias correlation. Distribution coefficient and separation factor were evaluated for the immiscibility region of the ternary system.
Compounds
# Formula Name
1 C2H4O2 acetic acid
2 C8H16O2 butyl butanoate
3 H2O water
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
  • 2
  • 3
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 18
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 7