ABSTRACT

Density and viscosity experimental data for binary mixtures of 1-alkyl-3-methylimidazolium alkylsulfates + water are reported using four ionic liquids: 1-butyl-3-methylimidazolium hydrogensulfate [C4mim][HSO4], 1-butyl-3-methylimidazolium methylsulfate [C4mim][C1SO4], 1-ethyl-3-methylimidazolium methylsulfate [C2mim][C1SO4], and 1-ethyl-3-methylimidazolium ethylsulfate [C2mim][C2SO4]. The choice of the ionic liquids allows us to compare the effects of incrementing the alkyl chain length in the cation and the anion on the measured thermophysical properties behavior. The Gardas and Coutinho group contribution methods were applied to the description of the pure component densities and viscosities allowing the estimation of new group contribution parameters, to extend the applicability of these methods to new ILs. Excess molar volumes and viscosity deviations were calculated and correlated by Redlich Kister polynomial expansions

Compounds

#	Formula	Name
1	C8H16N2O4S	1-butyl-3-methylimidazolium hydrogen sulfate
2	C9H18N2O4S	1-butyl-3-methylimidazolium methyl sulfate
3	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate
4	C7H14N2O4S	1-ethyl-3-methylimidazolium methylsulfate
5	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	5 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	35
POMD	5 1	Mass density, kg/m3 ; Liquid	Mole fraction - 5; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	35
POMD	5 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	49
POMD	5 2	Mass density, kg/m3 ; Liquid	Mole fraction - 5; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	49
POMD	5 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	49
POMD	5 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	49
POMD	5 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	49
POMD	5 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	49

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

Density and Viscosity Data for Binary Mixtures of 1-Alkyl-3-methylimidazolium Alkylsulfates + Water

Bhattacharjee, A.[Arijit], Varanda, C.[Catarina], Freire, M. G.[Mara G.], Matted, S.[Silvana], Santos, L. M. N. B. F.[Luis M. N. B. F.], Marrucho, I. M.[Isabel M.], Coutinho, J. A. P.[Joao A. P.]

ABSTRACT