ABSTRACT

Osmotic coefficients of binary mixtures containing alcohols (ethanol, 1-propanol, and 2-propanol) and the ionic liquids 1-ethyl-3-methylimidazolium ethylsulfate and 1-ethyl-3-methylpyridinium ethylsulfate were determined at T = 323.15 K. Vapour pressure and activity coefficients of the studied systems were calculated from experimental data. The extended Pitzer model modified by Archer, and the modified NRTL model (MNRTL) were used to correlate the experimental data, obtaining standard deviations lower than 0.012 and 0.031, respectively. The mean molal activity coefficients and the excess Gibbs free energy of the studied binary mixtures were calculated from the parameters obtained with the extended Pitzer model of Archer

Compounds

#	Formula	Name
1	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate
2	C10H17NO4S	1-ethyl-3-methylpyridinium ethylsulfate
3	C2H6O	ethanol
4	C3H8O	propan-1-ol
5	C3H8O	propan-2-ol

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	3 1	Osmotic coefficient ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	17
POMD	4 1	Osmotic coefficient ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	14
POMD	5 1	Osmotic coefficient ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	16
POMD	3 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	17
POMD	4 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	16
POMD	5 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	vapour pressure osmometry	15

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapour pressures and osmotic coefficients of binary mixtures of 1-ethyl-3-methylimidazolium ethylsulfate and 1-ethyl-3-methylpyridinium ethylsulfate with alcohols at T = 323.15 K

Calvar, N.[Noelia], Gonzalez, B.[Begona], Dominguez, A.[Angeles], Macedo, E. A.[Eugenia A.]

ABSTRACT