ABSTRACT

Ternary (liquid + liquid) equilibria for three systems containing ionic liquids {(4-(2-methoxyethyl)-4- methylmorpholinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpiperidinium trifluorotris(perfluoroethyl)phosphate, 1-(2-methoxyethyl)-1-methylpyrrolidinium trifluorotris(perfluoroethyl)phosphate) + thiophene + heptane} have been determined at T = 298.15 K. All systems showed high solubility of thiophene in the ionic liquid and low solubility of heptane. The solute distribution coefficient and the selectivity were calculated for all systems. High values of selectivity were obtained. The experimental results have been correlated using NRTL model. The influence of ionic liquid structure on phase equilibria is discussed.

Compounds

#	Formula	Name
1	C14H18F18NO2P	4-(2-methoxyethyl)-4-methylmorpholinium trifluorotris(perfluoroethyl)phosphate
2	C15H20F18NOP	1-(2-methoxyethyl)-1-methylpiperidinium trifluorotris(perfluoroethyl)phosphate
3	C14H18F18NOP	1-(2-methoxyethyl)-1-methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate
4	C4H4S	thiophene
5	C7H16	heptane

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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	6
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	6
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	3	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	3	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	6
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	4 5 1	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	15
POMD	4 5 2	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	14
POMD	4 5 3	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 3; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	16

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Ternary (liquid + liquid) equilibria of {trifluorotris(perfluoroethyl)phosphate based ionic liquids + thiophene + heptane}

Marciniak, A.[Andrzej], Krolikowski, M.[Marek]

ABSTRACT