. A similar trend was also reported for the mixture of RTILs in aqueous and non-aqueous solvents (e.g., ethanol, EG, glycerol, triethanolamine). All RTIL systems showed a maximum in the ionic conductivity at a given concentration of the RTIL in EG; however, the composition was different for the maximum conductivity value. The maximum ionic conductivity (σmax) with its composition for all the RTIL systems is shown in Figure . It could be observed from Figure