Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase equilibria of (water + butyric acid + butyl acetate) ternary systems at different temperatures

Bayazit, K.[Kayhan], Gok, A.[Ash], Uslu, H.[Hasan], Kyrbaplar, P. Y.
Fluid Phase Equilib. 2014, 379, 185-190
ABSTRACT
Phase equilibrium (LLE) data of the solubility (binodal) curves and tie-line end compositions were examined for mixtures of {(water (1) + butyric acid + butyl acetate (2)} at T = 298.2 K, 308.2 K, and 318.2 K and101.3 +- 0.7 kPa. The relative mutual solubility of butyric acid is higher in the butyl acetate than water layers at the all temperatures used in this study. The consistency of the experimental tie-lines was determined through the Othmer-Tobias correlation equation. The LLE data were correlated with UNIQUAC and NRTL model, indicating the reliability of the NRTL and UNIQUAC equations for these ternary systems.The best results were achieved with the UNIQUAC equation for the correlations. Distribution coefficients and separation factors were measured to evaluate the extracting capability of the solvent.
Compounds
# Formula Name
1 H2O water
2 C4H8O2 butanoic acid
3 C6H12O2 butyl ethanoate
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 1
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 1
  • POMD
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • 3
  • 1
  • Mass fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 48
  • POMD
  • 2
  • 3
  • 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mass fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 15