Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Experimental study of phase equilibria in aqueous mixtures of phosphoric acid with isoamyl acetate and methyl isoamyl ketone at T = (298.2, 308.2, and 318.2) K

Gilani, H. G., Gilani, A. G., Shekarsaraee, S.
Fluid Phase Equilib. 2013, 337, 32-38
ABSTRACT
This study demonstrates the experimental solubility and tie-line data for (water + phosphoric acid + isoamyl acetate or methyl isoamyl ketone) ternary systems at T = (298.2, 308.2, and 318.2) K and atmospheric pressure for the first time. The concentration of each phase was determined by acidimetric titration, the Karl Fischer technique, and refractive index measurements. The experimental tie-line data were correlated using the UNIQUAC and NRTL models. The reliability of the experimental data was determined through the Othmer-Tobias and Hand plots. Distribution coefficients and separation factors were evaluated over the immiscibility regions.
Compounds
# Formula Name
1 H3O4P phosphoric acid
2 C7H14O2 3-methylbutyl ethanoate
3 C7H14O 5-methyl-2-hexanone
4 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
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube 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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 4
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • 1
  • 4
  • Mass fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Index of refraction calibration data
  • 60
  • POMD
  • 2
  • 1
  • 4
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 4 ; Liquid mixture 1
  • Mass fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 2; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • 18
  • POMD
  • 3
  • 1
  • 4
  • Mass fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Index of refraction calibration data
  • 60
  • POMD
  • 3
  • 1
  • 4
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 4 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • 18