Heat capacities and electrical conductivities of 1-n-butyl-3-methylimidazolium-based ionic liquids

Here we presented the heat capacities and electrical conductivities of four [Bmim (1-n-butyl-3-methylimidazolium)]-based ionic liquids. The heat capacities were measured using a differential scanning calorimeter in the temperature range from 303.2 to 358.2 K. The electrical conductivities were measured over temperature range from 293.2 to 353.2 K using conductivity meter. The estimated uncertainties of heat capacity Cp and electrical conductivity σ measurements were ±2% and ±1%, respectively. The measurements were presented as a function of temperature. The temperature dependency of the Cp value was correlated using an empirical equation. A modified version of Vogel–Tamman–Fulcher equation was employed to describe the temperature dependency of σ values. The correlations give satisfactory results. The presented results were in good agreement with the available literature data.