Electrochemical and transport properties of the pure 1-butyl-3-methylimidazolium dicyanamide ionic liquid, [bmim][DCA], and its binary liquid mixtures with .gamma.-butyrolactone (GBL) were studied at temperatures from (273.15 to 323.15) K at atmospheric pressure over the whole composition range. Electrical conductivity data were correlated using Arrhenius, Casteel Amis and Vogel Tammann Fulcher equations. Several semi-empirical models (quasi-Arrhenius and Bahe Varela model) were also tested. Electrochemical stability of {[bmim][DCA] + GBL} was also investigated. It was found that addition of GBL do not reduce electrochemical stability of investigated solution. All the results obtained for {[bmim][DCA] + GBL} are compared with those reported for binary mixtures of GBL and ionic liquids with dicyanamide, [DCA] , and bis(trifluoromethylsulfonyl)imide, [TFSI] , anions. At the compositions where maximum of conductivity is observed, difference in conductivity between [DCA] and [TFSI] based ionic liquids + GBL mixtures is around 70%. It was found that type of the cation (imidazolium and pyrrolidinium) do not influence the electrical conductivity of the mixture.
Compounds
#
Formula
Name
1
C4H6O2
.gamma.-butyrolactone
2
C10H15N5
1-butyl-3-methylimidazolium dicyanamide
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.