ABSTRACT

Densities, viscosities and electrical conductivities were determined and discussed for gamma-butyrolactone (GBL) with 1,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid ([mmim][NTf2]) binary mixtures as a function of temperature at atmospheric pressure 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. Electrical conductivity data were correlated using Casteel Amis and Arrhenius equations. The influence of viscosity on electrical conductivity was discussed within the scope of Walden rule. Volumetric and transport properties of GBL binary mixtures with selected ionic liquid are compared with available literature data for the corresponding 1-methyl-3-alkylsupstituted imidazolium based ILs.

Compounds

#	Formula	Name
1	C4H6O2	.gamma.-butyrolactone
2	C7H9F6N3O4S2	1,3-dimethylimidazolium bis((trifluoromethyl)sulfonyl)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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	6
POMD	2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	6
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	78
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	78
POMD	1 2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	72

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

A systematic study on physicochemical and transport properties of imidazolium-based ionic liquids with gamma-butyrolactone

Papovic, Snezana, Gadzuric, Slobodan, Bester-Rogac, Marija, Jovic, Branislav, Vranes, Milan

ABSTRACT