ABSTRACT

(Liquid + liquid) equilibria for {1-benzyl-3-methylimidazolium chloride ([BzMIM]Cl) or 1-hexyl-3-methylimidazolium chloride ([HMIM]Cl) + inorganic salts (potassium phosphate K3PO4, potassium carbonate K2CO3, or dipotassium hydrogen phosphate K2HPO4) + H2O} aqueous biphasic systems (ABSs) are presented at T = 298.15 K. An empirical equation was used to correlate the binodal data. The experimental tie lines were appropriately correlated by the Othmer-Tobias and Brancroft empirical equations. The influence of the selected inorganic salts in the phase segregation was investigated by means the calculated effective excluded volume (EEV) and Setschenow-type equation. The salting-out ability of salts was also evaluated in terms of the Gibbs energy of hydration of salt and assessed with EEV values.

Compounds

#	Formula	Name
1	C11H13ClN2	1-benzyl-3-methyl-1H-imidazolium chloride
2	C10H19ClN2	1-hexyl-3-methylimidazolium chloride
3	K3O4P	tripotassium phosphate
4	HK2O4P	dipotassium hydrogen phosphate
5	CK2O3	potassium carbonate
6	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	6 3 1	Mass fraction - 1 ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 3	Titration method	26
POMD	6 3 1	Mass fraction - 3 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 3 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	3
POMD	6 4 1	Mass fraction - 1 ; Liquid	Mass fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 4	Titration method	26
POMD	6 4 1	Mass fraction - 4 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 4 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	3
POMD	5 6 1	Mass fraction - 1 ; Liquid	Mass fraction - 5; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 5	Titration method	25
POMD	5 6 1	Mass fraction - 5 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 5 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	3
POMD	6 3 2	Mass fraction - 2 ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 3	Titration method	23
POMD	6 3 2	Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 3 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 2; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	3
POMD	6 4 2	Mass fraction - 2 ; Liquid	Mass fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 4	Titration method	27
POMD	6 4 2	Mass fraction - 4 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 4 ; Liquid mixture 2	Mass fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	3
POMD	5 6 2	Mass fraction - 2 ; Liquid	Mass fraction - 5; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 5	Titration method	25
POMD	5 6 2	Mass fraction - 5 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 5 ; Liquid mixture 2	Mass fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	3

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Liquid + liquid) equilibrium of aqueous biphasic systems composed of 1-benzyl or 1-hexyl-3-methylimidazolium chloride ionic liquids and inorganic salts

Deive, F. J.[Francisco J.], Rodriguez, A.[Ana]

ABSTRACT