ABSTRACT

A study on the isobaric vapor-liquid equilibria of the ternary system containing the ionic liquid 1-ethyl-3-methylpyridinium ethylsulfate (EMpyESO4) and the azeotropic mixture ethanol + water is presented in this work. Experimental isobaric vapor-liquid equilibrium of the ternary system ethanol + water + EMpyESO4 was determined at 101.3 kPa, together with the vapor-liquid equilibria of the binary systems ethanol + EMpyESO4 and water + EMpyESO4. The experimental data obtained from the binary vapor-liquid equilibria were correlated using the NRTL and e-NRTL equations. The NRTL equation was also used to correlate the experimental vapor-liquid equilibrium of the ternary system. With the parameters obtained from these correlations, the evolution of the azeotrope ethanol + water with different amounts of ionic liquid can be studied. The results obtained were compared with the isobaric vapor-liquid equilibria data of the system containing this azeotropic mixture with the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate

Compounds

#	Formula	Name
1	C2H6O	ethanol
2	H2O	water
3	C10H17NO4S	1-ethyl-3-methylpyridinium ethylsulfate

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		Liquid Air at 1 atmosphere	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	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		Liquid Air at 1 atmosphere	CAPTUB:UFactor:2	1
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	17
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	17
POMD	1 2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	26
POMD	1 2 3	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Gas	Gas Liquid	Index of refraction calibration data	26

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Experimental Vapor-Liquid Equilibria for the Ternary System Ethanol + Water + 1-Ethyl-3-methylpyridinium Ethylsulfate and the Corresponding Binary Systems at 101.3 kPa: Study of the Effect of the Cation

Calvar, N.[Noelia], Gomez, E.[Elena], Gonzalez, B.[Begona], Dominguez, A.[Angeles]

ABSTRACT