Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibrium data for ternary aqueous mixtures containing 1-pentanol and 2-methyl-1-propanol at (298.15, 323.15, and 348.15) K

Yang, J.[Jingwei], Liu, Y.[Ying], Ma, Y.[Yuhong], Meng, Q.[Qingxin], Wang, Y.[Yinglong]
Fluid Phase Equilib. 2013, 349, 31-36
ABSTRACT
Liquid-liquid equilibrium (LLE) tie-line data of ternary aqueous mixtures containing 1-pentanol and 2- methyl-1-propanol were reported separately at T = (298.15, 323.15 and 348.15) K under normal pressure in this article. Meanwhile, a type II LLE phase diagram for the investigated system at each constant temperature was given and the effect of temperature on LLE phase behavior was discussed. The well-known Othmer-Tobias, Bachman and Hand correlations were used to test the reliability of the experimental data. In addition, both the NRTL (alpha = 0.2) and UNIQUAC models were applied to correlate the measured data to obtain the binary interaction parameters between each pair of components valid for the range of temperature studied. All of the root-mean-square deviation (RMSD) between the measured and calculated data was less than 0.0056. The results of this study can be used to design and optimize the liquid-liquid separation process of aqueous solution containing 2-methyl-1-propanol and 1-pentanol.
Compounds
# Formula Name
1 H2O water
2 C2H6O ethanol
3 C4H10O 2-methyl-1-propanol
4 C5H12O pentan-1-ol
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
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • 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
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 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
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 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
  • 4
  • 3
  • 1
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 30