ABSTRACT

Experimental densities and viscosities for .gamma.-butyrolactone (GBL) binary mixtures with 1,2,3-trialkyl-substituted imidazolium bis(trifluoromethylsulfonyl)imide ionic liquids, namely: 1-ethyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide [emmim][NTf2], 1,2-dimethyl- 3-propylimidazolium bis(trifluoromethylsulfonyl)imide [pmmim][NTf2] and 1-butyl-2,3- dimethylimidazolium bis(trifluoromethylsulfonyl)imide [bmmim][NTf2] (p = 0.1 MPa) in the temperature range from T = (293.15 323.15) K over the whole composition range. From the experimental density data the related excess molar volumes were calculated and fitted using Redlich-Kister s polynomial equation. The thermal expansion coefficients were also calculated from the acquired experimental density values. The influence of C-2 methyl group and effects of the alkyl side chain length of the 1,2,3- trialkylimidazolium ionic liquids on the nature of interactions and hydrogen bonding in the studied binary mixtures with GBL were discussed. Volumetric and transport properties of GBL binary mixtures with selected ILs are compared with available literature data for the corresponding 1,3-dialkyl-supstituted imidazolium based ionic liquids.

Compounds

#	Formula	Name
1	C4H6O2	.gamma.-butyrolactone
2	C9H13F6N3O4S2	1-ethyl-2,3-dimethylimidazolium bis[(trifluoromethyl)sulfonyl]imide
3	C10H15F6N3O4S2	1,2-dimethyl-3-propylimidazolium bis[(trifluoromethyl)sulfonyl]imide
4	C11H17F6N3O4S2	1-butyl-2,3-dimethyl-1H-imidazolium bis(trifluoromethylsulfonyl)amide

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	2	Viscosity, Pa*s ; Metastable liquid	Temperature, K; Metastable liquid	Pressure, kPa; Metastable liquid	Metastable liquid	Capillary tube (Ostwald; Ubbelohde) method	7
POMD	2	Mass density, kg/m3 ; Metastable liquid	Temperature, K; Metastable liquid	Pressure, kPa; Metastable liquid	Metastable liquid	Vibrating tube method	7
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	8
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	7
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	91
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	91
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	91
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	91
POMD	1 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	91
POMD	1 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	91

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Interactions of 1,2,3-trialkylimidazolium-based ionic liquids with .gamma.-butyrolactone

Papovic, S.[Snezana], Vranes, M.[Milan], Kordic, B.[Branko], Filipovic, S.[Sanja], Bester-Rogac, M.[Marija], Gadzuric, S.[Slobodan]

ABSTRACT