ABSTRACT

Phase equilibria data for complex systems (more than three components or two phases, high pressures, complex fluids. . .) are needed to develop thermodynamic models capable of correlating and predicting their behaviour. Along these lines, systems composed of water, oil and surfactant exhibit an interesting conduct. In this work, the (liquid + liquid) equilibria of a ternary system comprising water, n-dodecane and a surfactant ionic liquid, trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide, have been determined at temperatures (298.15 or 348.15) K and atmospheric pressure. Winsor type III systems have been found without the need of adding any co-surfactant. The stability of the triphasic system with temperature has been tested. Some physical properties (density, viscosity and interfacial tension) for phases involved have been also determined. As expected, a minor surfactant character has been found for this ionic liquid rather than for the homologous with the chloride anion.

Compounds

#	Formula	Name
1	C12H26	dodecane
2	H2O	water
3	C34H68F6NO4PS2	trihexyl(tetradecyl)phosphonium bis[(trifluoromethyl)sulfonyl]imide

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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	1
POMD	2 3	Mass density, kg/m3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	2
POMD	2 3	Viscosity, Pa*s ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	2 3	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Wilhelmy plate method	2
POMD	2 3	Mole fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	2
POMD	2 3	Mass density, kg/m3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Vibrating tube method	2
POMD	2 3	Viscosity, Pa*s ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 3	Mass density, kg/m3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	2
POMD	1 3	Viscosity, Pa*s ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 3	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Wilhelmy plate method	2
POMD	1 3	Mole fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	2
POMD	1 3	Mole fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	1 3	Mass density, kg/m3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Vibrating tube method	2
POMD	1 3	Viscosity, Pa*s ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2 3	Mass density, kg/m3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2 Liquid mixture 3	Vibrating tube method	2
POMD	1 2 3	Viscosity, Pa*s ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 3 Liquid mixture 2	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2 3	Interfacial tension, N/m ; Liquid mixture 1	Mole fraction - 3; Liquid mixture 2 Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Wilhelmy plate method	2
POMD	1 2 3	Interfacial tension, N/m ; Liquid mixture 3	Temperature, K; Liquid mixture 3 Mole fraction - 3; Liquid mixture 2	Pressure, kPa; Liquid mixture 3	Liquid mixture 3 Liquid mixture 2	298.15	2
POMD	1 2 3	Mole fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 3; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography	17
POMD	1 2 3	Mole fraction - 3 ; Liquid mixture 3 Mole fraction - 2 ; Liquid mixture 3 Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 3 Liquid mixture 1 Liquid mixture 2	ICP optical spectroscopy ICP optical spectroscopy ICP optical spectroscopy ICP optical spectroscopy ICP optical spectroscopy ICP optical spectroscopy	2
POMD	1 2 3	Mole fraction - 3 ; Liquid mixture 3 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 1; Liquid mixture 3	Pressure, kPa; Liquid mixture 2	Liquid mixture 3 Liquid mixture 2	Chromatography Chromatography Chromatography	2
POMD	1 2 3	Mass density, kg/m3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1 Liquid mixture 3	Vibrating tube method	2
POMD	1 2 3	Mass density, kg/m3 ; Liquid mixture 3	Temperature, K; Liquid mixture 3	Pressure, kPa; Liquid mixture 3	Liquid mixture 3 Liquid mixture 2 Liquid mixture 1	Vibrating tube method	2
POMD	1 2 3	Viscosity, Pa*s ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 3 Liquid mixture 1	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2 3	Viscosity, Pa*s ; Liquid mixture 3	Temperature, K; Liquid mixture 3	Pressure, kPa; Liquid mixture 3	Liquid mixture 3 Liquid mixture 1 Liquid mixture 2	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2	Mass density, kg/m3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	2
POMD	1 2	Mass density, kg/m3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Vibrating tube method	2
POMD	1 2	Viscosity, Pa*s ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2	Viscosity, Pa*s ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Capillary tube (Ostwald; Ubbelohde) method	2
POMD	1 2	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Wilhelmy plate method	2

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Water/oil/[P6,6,6,14][NTf2] phase equilibria

Lago, S.[Sara], Rodriguez-Cabo, B., Arce, A.[Alberto], Soto, A.[Ana]

ABSTRACT