ABSTRACT

This research has been focused on viscosities, vapor-liquid equilibria (VLE), and heat of mixing measurements for water with the following choline-based ionic liquids: choline lactate, choline glycolate, and choline methanesulfonate. Isothermal vapor-liquid equilibria were measured by means of a static VLE apparatus at (303.15, 313.15, and 323.15) K. The experimental VLE data were correlated using the NRTL and UNIQUAC models, and the root-mean-square deviations (rmsd's) are given. Furthermore, the molar excess enthalpies of water + choline glycolate and water + choline lactate ionic liquid systems have been performed at T = (303.15, 315.15, and 323.15) K using a differential scanning calorimeter. The results were fitted to a Redlich-Kister equation to determine the fitting parameters and the mean relative deviations. Viscosities of the binary aqueous systems with choline glycolate and choline lactate have been measured at 293.15 K.

Compounds

#	Formula	Name
1	C8H19NO4	choline lactate
2	C7H17NO4	choline glycolate
3	C6H17NO4S	choline methanesulfonate
4	H2O	water

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	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	3
POMD	4 1	Viscosity, Pa*s ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	7
POMD	4 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	POWC:UFactor:8	29
POMD	4 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid		Liquid Gas	Closed cell (Static) method	37
POMD	4 2	Viscosity, Pa*s ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	6
POMD	4 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	POWC:UFactor:8	30
POMD	4 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid		Liquid Gas	Closed cell (Static) method	37
POMD	4 3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid		Liquid Gas	Closed cell (Static) method	37

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

Viscosities, Vapor Pressures, and Excess Enthalpies of Choline Lactate + Water, Choline Glycolate + Water, and Choline Methanesulfonate + Water Systems

Constantinescu, D.[Dana], Schaber, K.[Karlheinz], Agel, F.[Friederike], Klingele, M. H.[Marco H.], Schubert, T. J. S.[Thomas J. S.]

ABSTRACT