ABSTRACT

Data for the conductivity (?) of the ionic liquids [emim][BF4], [bmim][BF4], [hmim][BF4], and [omim][BF4] from (-35 to 195) deg C are reported. The data can be well-fit with the Vogel-Fulcher-Tammann equation. Additionally, molar conductivities (?) were determined for the limited temperature range of (5 to 65) deg C. Walden plots of these data indicate that the investigated compounds can be classified as high-ionicity ionic liquids. It is suspected that the large difference between the present ? values and some of the literature values is mainly due to the neglect of BF4- hydrolysis.

Compounds

#	Formula	Name
1	C6H11BF4N2	1-ethyl-3-methylimidazolium tetrafluoroborate
2	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
3	C10H19BF4N2	1-hexyl-3-methylimidazolium tetrafluoroborate
4	C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate

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	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	23
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	24
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	24
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	24
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7

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

The Conductivity of Imidazolium-Based Ionic Liquids from (-35 to 195) deg C. A. Variation of Cation s Alkyl Chain

Stoppa, A.[Alexander], Zech, O.[Oliver], Kunz, W.[Werner], Buchner, R.[Richard]

ABSTRACT