ABSTRACT

For the temperature range (80 to 120) deg C, viscosity data are reported for imidazolium-based ionic liquids 1-octyl-3-methylimidazolium chloride [Omim][Cl], 1-hexyl-3-methylimidazolium chloride [Hmim][Cl], 1-butyl-3-methylimidazolium chloride [Bmim][Cl], 1-ethyl-3-methylimidazolium chloride [Emim][Cl], 1-ethyl-3-methylimidazolium acetate [Emim][Ac], 1-butyl-3-methylimidazolium acetate [Bmim][Ac], and 1-butyl-3-methylimidazolium dicyanamide [Bmim] [N(CN)2]. Acetate-based ionic liquids have considerably lower viscosities than the corresponding chloride-based ILs. At 25 deg C, viscosity data are reported for binary mixtures of [Bmim][Ac] with diluents water, acetonitrile, dimethylformamide (DMF), and ethylene glycol. Even a small concentration of diluent very much reduces the viscosity of an ionic liquid.

Compounds

#	Formula	Name
1	C6H11ClN2	1-ethyl-3-methylimidazolium chloride
2	C8H15ClN2	1-butyl-3-methylimidazolium chloride
3	C10H19ClN2	1-hexyl-3-methylimidazolium chloride
4	C12H23ClN2	1-methyl-3-octylimidazolium chloride
5	C8H14N2O2	1-ethyl-3-methylimidazolium acetate
6	C10H18N2O2	1-butyl-3-methylimidazolium acetate
7	C10H15N5	1-butyl-3-methylimidazolium dicyanamide
8	C2H3N	acetonitrile
9	C2H6O2	1,2-ethanediol
10	C3H7NO	dimethylformamide
11	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	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	3
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	3
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	3
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	3
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	4
POMD	6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	4
POMD	7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:8	4
POMD	11 5	Viscosity, Pa*s ; Liquid	Mass fraction - 11; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	CONCYL:UFactor:8	7
POMD	11 6	Viscosity, Pa*s ; Liquid	Mass fraction - 11; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	CONCYL:UFactor:8	6
POMD	8 6	Viscosity, Pa*s ; Liquid	Mass fraction - 8; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	CONCYL:UFactor:8	5
POMD	9 6	Viscosity, Pa*s ; Liquid	Mass fraction - 9; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	CONCYL:UFactor:8	5
POMD	10 6	Viscosity, Pa*s ; Liquid	Mass fraction - 10; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	CONCYL:UFactor:8	5

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

Viscosities of Acetate or Chloride-Based Ionic Liquids and Some of Their Mixtures with Water or Other Common Solvents

Fendt, S.[Sebastian], Padmanabhan, S.[Sasisanker], Blanch, H. W.[Harvey W.], Prausnitz, J. M.[John M.]

ABSTRACT