ABSTRACT

Molar conductivities, ?, of dilute solutions of the ionic liquids 1-butyl-3-methylimidazolium chloride and 1-butyl-3-methylimidazolium tetrafluoroborate in methanol and DMSO were determined as a function of temperature (methanol, T = (273.15 to 313.15) K; DMSO, T = (293.15 to 318.15) K). The data were analyzed with Barthel s low-concentration chemical model (lcCM) model to obtain the limiting molar conductivities, ??(T), and association constants, KAdeg (T), of these electrolytes. From ??(T), the Eyring activation enthalpy of charge transport and (where possible) the ion conductivity of the cation, ??([bmim]+), were determined.

Compounds

#	Formula	Name
1	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
2	C8H15ClN2	1-butyl-3-methylimidazolium chloride
3	CH4O	methanol
4	C2H6OS	dimethyl sulfoxide

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	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	3 1	Molar conductivity, S*m2/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	72
POMD	3 2	Molar conductivity, S*m2/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	90
POMD	4 1	Molar conductivity, S*m2/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	54
POMD	4 2	Molar conductivity, S*m2/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	60

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

Molar Conductivities and Association Constants of 1-Butyl-3-methylimidazolium Chloride and 1-Butyl-3-methylimidazolium Tetrafluoroborate in Methanol and DMSO

Bester-Rogac, M.[Marija], Hunger, J.[Johannes], Stoppa, A.[Alexander], Buchner, R.[Richard]

ABSTRACT