Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic investigation of the ATPSs composed of some (aliphatic alcohol + sodium carbonate + water) ternary systems

Nemati-Knade, E.[Ebrahim], Shekaari, H.[Hemayat]
J. Chem. Thermodyn. 2013, 57, 541-549
ABSTRACT
In this work, the (liquid + liquid) equilibrium of 1-propanol, 2-propanol, 2-methyl-2-propanol, 2-butanol, or (ethanol + sodium carbonate + water) ternary systems was studied. Binodal curves and tie-line data at T = 298.15 K were reported. The effect of temperature was studied using the obtained cloud-point data as a function of alcohol mole fraction at temperature range T = (293.15 to 328.15) K with 5 K intervals. The free energy, enthalpy, and entropy of clouding point (CP) estimated using a simple method, and the driving force of the two-phase formation process was discussed on the base of the estimated free energy values. Salting-out effect was discussed using the values of parameters of one parameter effective excluded volume (EEV) model. The effect of different alcohols on the phase-separation ability of the studied systems was discussed on the base of the intermolecular interactions. Also, a new three parameter nonlinear equation developed and successfully used for the correlation of the binodal curves, and the correlation coefficients were also reported. Moreover, the generalized electrolyte-NRTL model to the mixed solvent electrolyte systems (e-NRTL) was satisfactorily used for the correlation of the tie-line compositions, and the binary interaction parameters were also reported.
Compounds
# Formula Name
1 C3H8O propan-1-ol
2 C3H8O propan-2-ol
3 C4H10O butan-2-ol
4 C4H10O 2-methylpropan-2-ol
5 CNa2O3 sodium carbonate
6 C2H6O ethanol
7 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
  • 5
  • 7
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Solvent: Amount ratio of component to other component of binary solvent - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 8
  • POMD
  • 1
  • 5
  • 7
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 5
  • POMD
  • 1
  • 5
  • 7
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 12
  • POMD
  • 2
  • 5
  • 7
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Solvent: Amount ratio of component to other component of binary solvent - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 8
  • POMD
  • 2
  • 5
  • 7
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • flame photometry
  • flame photometry
  • flame photometry
  • 4
  • POMD
  • 2
  • 5
  • 7
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 16
  • POMD
  • 4
  • 5
  • 7
  • Mole fraction - 4 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Solvent: Amount ratio of component to other component of binary solvent - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 8
  • POMD
  • 4
  • 5
  • 7
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 4 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 4
  • POMD
  • 4
  • 5
  • 7
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 13
  • POMD
  • 3
  • 5
  • 7
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Solvent: Amount ratio of component to other component of binary solvent - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 8
  • POMD
  • 3
  • 5
  • 7
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 4
  • POMD
  • 3
  • 5
  • 7
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 9
  • POMD
  • 6
  • 5
  • 7
  • Mole fraction - 6 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Solvent: Amount ratio of component to other component of binary solvent - 5; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 8
  • POMD
  • 6
  • 5
  • 7
  • Mass fraction - 6 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Titration method
  • 13
  • POMD
  • 6
  • 5
  • 7
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 6 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 6; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 3