ABSTRACT

In this work, we have studied influence of ionic liquids (ILs) on the azeotrope composition for the system {diisopropyl ether (DIPE) + ethanol} using trihexyltetradecylphosphonium chloride ([P666,14][Cl]) and trihexyltetradecylphosphonium bis(2,2,4-trimethylpentyl) phosphinate ([P666,14][TMPP]). Isothermal vapor-liquid equilibrium data at 333.15 K are reported for the ternary systems {DIPE + ethanol + [P666,14][Cl]} and {DIPE + ethanol + [P666,14][TMPP]} with varying the mole fraction of ILs from 0.05 to 0.10. The experimental ternary VLE data were correlated using the Wilson equation. In addition, excess molar volumes and deviations in molar refractivity data at 298.15 K are reported for the binary systems {DIPE + [P666,14][Cl]} and {ethanol + [P666,14][Cl]} by a digital vibrating tube densimeter and a precision digital refractometer. The excess molar volumes and deviations in molar refractivity data were correlated by the Redlich-Kister equation.

Compounds

#	Formula	Name
1	C6H14O	diisopropyl ether
2	C32H68ClP	trihexyl(tetradecyl)phosphonium chloride
3	C48H102O2P2	trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl)phosphinate
4	C2H6O	ethanol

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 2	Refractive index (Na D-line) ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	11
POMD	1 2	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	1 2	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	11
POMD	4 2	Refractive index (Na D-line) ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	12
POMD	4 2	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	12
POMD	4 2	Excess molar volume, m3/mol ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	12
POMD	4 1 2	Mole fraction - 4 ; Gas Mole fraction - 2 ; Liquid Mole fraction - 1 ; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Gas	Temperature, K; Liquid	Gas Liquid	Chromatography Chromatography Chromatography	42
POMD	4 1 3	Mole fraction - 4 ; Gas Mole fraction - 3 ; Liquid Mole fraction - 1 ; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Gas	Temperature, K; Liquid	Gas Liquid	Chromatography Chromatography Chromatography	48

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapor-liquid equilibria at 333.15 K and excess molar volumes and deviations in molar refractivity at 298.15 K for mixtures of diisopropyl ether, ethanol and ionic liquids

Hwang, I.-C.[In-Chan], Park, S. J.[So Jin], Han, K. J.[Kyu-Jin]

ABSTRACT