Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Triggering phase disengagement of 1-alkyl-3-methylimidazolium chloride ionic liquids by using inorganic and organic salts

Torres-Plasencia, G.[Gustavo], Gutierrez-Arnillas, E.[Esther], Deive, F. J.[Francisco J.], Sanroman, M. A.[M. Angeles], Rodriguez, A.[Ana]
J. Chem. Thermodyn. 2015, 88, 1-7
ABSTRACT
This study deals with the influence of different inorganic and organic salts made up with sodium, potassium and ammonium cations to induce phase segregation in aqueous solutions of C8C1imCl and C10C1- imCl at T = 298.15 K. The experimental solubility values are described by means of four empirical equations and the suitability of the models was analysed in the light of the standard deviation. The capability of the above mentioned salts to further phase de-mixing is discussed on the basis of their different molar Gibbs free energy of hydration (DhydG), molar entropy of hydration (DhydS) and pH. The efficiency of the separation was evaluated by determining the tie-lines, and these experimental values were fitted to three known models such as Bancroft, Othmer Tobias and modified Setschenow equations.
Compounds
# Formula Name
1 C4H4K2O6 dipotassium L-tartrate
2 CNa2O3 sodium carbonate
3 H9N2O4P diammonium hydrogen phosphate
4 Na2O4S sodium sulfate
5 C12H23ClN2 1-methyl-3-octylimidazolium chloride
6 C14H27ClN2 1-decyl-3-methylimidazolium chloride
7 H2O water
8 H8N2O4S ammonium sulfate
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
  • 7
  • 5
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 27
  • POMD
  • 2
  • 7
  • 5
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 7
  • 3
  • 5
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 26
  • POMD
  • 7
  • 3
  • 5
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 1
  • 7
  • 5
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 16
  • POMD
  • 1
  • 7
  • 5
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 5; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 7
  • 4
  • 5
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 20
  • POMD
  • 2
  • 7
  • 6
  • Mass fraction - 6 ; Liquid mixture 1
  • Mass fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 23
  • POMD
  • 2
  • 7
  • 6
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 6 ; 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
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 7
  • 3
  • 6
  • Mass fraction - 6 ; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 26
  • POMD
  • 7
  • 3
  • 6
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 6 ; 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
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 1
  • 7
  • 6
  • Mass fraction - 6 ; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 23
  • POMD
  • 1
  • 7
  • 6
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 6 ; Liquid mixture 2
  • Mass fraction - 1 ; 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
  • gravimetric
  • gravimetric
  • gravimetric
  • 3
  • POMD
  • 7
  • 4
  • 6
  • Mass fraction - 6 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 20
  • POMD
  • 7
  • 8
  • 6
  • Mass fraction - 6 ; Liquid mixture 1
  • Mass fraction - 8; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 10