ABSTRACT

Vapor-liquid equilibrium (VLE) data for one binary system (2-propanol + acetonitrile) and two ternary systems {2-propanol + acetonitrile + 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), 2- propanol + acetonitrile + 1-butyl-3- methylimidazolium tetrafluoroborate ([BMIM][BF4])} were determined at atmospheric pressure (101.3 kPa). It was found that the studied ionic liquids (ILs) both showed a salting-out effect, which leads to the elimination of the azeotropic point, and that the order of separation capacity for imidazolium-based ILs is [EMIM][BF4] greater than [BMIM][BF4]. All experimental data could be well correlated by nonrandom two-liquid (NRTL) model.

Compounds

#	Formula	Name
1	C3H8O	propan-2-ol
2	C2H3N	acetonitrile
3	C6H11BF4N2	1-ethyl-3-methylimidazolium tetrafluoroborate
4	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate

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	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	1	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Closed cell (Static) method	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	2	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	15
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	15
POMD	1 2 3	Mole fraction - 2 ; Liquid Mole fraction - 2 ; Gas Mole fraction - 1 ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Chromatography Chromatography Chromatography	30
POMD	1 2 4	Mole fraction - 2 ; Liquid Mole fraction - 2 ; Gas Mole fraction - 1 ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Chromatography Chromatography Chromatography	30

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Effect of imidazolium-based ionic liquid on vapor-liquid equilibria of 2-propanol + acetonitrile binary system at 101.3 kPa

Zhu, W.[Wei], Qing, L.[Li], Liu, B.[Bing], Cai, X.[Xinbing], Fan, Z.[Zenglu]

ABSTRACT