Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase equilibria measurements of ternary mixtures (sulfolane + a carboxylic acid + pentane) at 303.15 K

Xhakaza, N. M., Bahadur, I., Redhi, G. G.[Gan G.], Ebenso, E. E.[Eno E.]
Fluid Phase Equilib. 2015, 404, 26-31
ABSTRACT
The liquid-liquid equilibrium (LLE) data for the mixtures of {sulfolane (1) + a carboxylic acid (2) + pentane (3)} at 303.15 K are reported, where a carboxylic acid refers to acetic acid, propanoic acid, butanoic acid, 2-methylpropanoic acid, pentanoic acid and 3-methylbutanoic acid. The shape of the binodal curves show that the solubility of pentane in (sulfolane + a carboxylic acid) is very much dependent on the carbon number and the type of carboxylic acid. The area of the two phase heterogeneous region for the carboxylic mixtures decreases in the order of acetic acid greater than propanoic acid greater than 2-methylpropanoic acid ~ butanoic acid greater than pentanoic acid ~ 3-methylbutanoic acid. Three parame- ter equations have been fitted to the binodal curve data. The NRTL and UNIQUAC models were used to correlate the experimental data. The NRTL model fitted the experimental data better than the UNIQUAC model with the average mean square deviation of 0.072 mole fraction as compared to 0.359 mole fraction for UNIQUAC model.
Compounds
# Formula Name
1 C2H4O2 acetic acid
2 C3H6O2 propanoic acid
3 C4H8O2 butanoic acid
4 C4H8O2 2-methylpropanoic acid
5 C5H10O2 pentanoic acid
6 C5H10O2 3-methylbutanoic acid
7 C4H8O2S sulfolane
8 C5H12 pentane
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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 5
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 6
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 8
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 1
  • 8
  • 7
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 18
  • POMD
  • 1
  • 8
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 1
  • 8
  • 7
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10
  • POMD
  • 2
  • 8
  • 7
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 16
  • POMD
  • 2
  • 8
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 2
  • 8
  • 7
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10
  • POMD
  • 3
  • 8
  • 7
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 18
  • POMD
  • 3
  • 8
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 3
  • 8
  • 7
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10
  • POMD
  • 4
  • 8
  • 7
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 14
  • POMD
  • 4
  • 8
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 4; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 4
  • 8
  • 7
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10
  • POMD
  • 5
  • 8
  • 7
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 16
  • POMD
  • 5
  • 8
  • 7
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 5; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 5
  • 8
  • 7
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10
  • POMD
  • 8
  • 7
  • 6
  • Mole fraction - 6 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 16
  • POMD
  • 8
  • 7
  • 6
  • Refractive index (Na D-line) ; Liquid
  • Mole fraction - 7; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 10
  • POMD
  • 8
  • 7
  • 6
  • Mole fraction - 6 ; Liquid mixture 1
  • Mole fraction - 7; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 10