Density, viscosity and electrical conductivity of AlCl3-amide ionic liquid analogues

The density, viscosity and electrical conductivity of AlCl3-amide (amide = urea, acetamide, propionamide, butyramide) ionic liquid (IL) analogues with varied molar fractions of AlCl3 were measured at temperatures ranging from 313 K to 373 K. All the experimental values were fitted with the empirical equations. Meanwhile, the molar volume and molar conductivity of AlCl3-amide were also obtained. Based on the results, the difference in the properties of AlCl3-amide IL analogues are mainly attributed to the species of amide ligands, which have significant effects on complex structure, ionic interaction and hydrogen bonding of IL analogues.