Physicochemical Properties of an Hydrophobic Ionic Liquid (Aliquat 336) in a Polar Protic Solvent (Formamide) at Different Temperatures

Abstract

The physicochemical and transport proprieties have been determined for binary mixtures Aliquat 336/Formamide in the temperature range of 298.15 to 313.15 K. The variation tendency of viscosity/conductivity with composition of the mixtures was explained through the disruption of molecular solutes to ionic association or aggregation of the ionic liquids (ILs). The semiempirical equation proposed by Jones and Dole was used to describe the variation of viscosity with salt concentration (C). In the IL-rich region, molar conductivity follows the cube root law, which was predicted by the quasi-lattice model introduced by Gosh. The two transport processes were well described by Arrhenius law. From this, the activation energies for the viscosity (E _a,η) and conductivity (E _a,Λ) are then deduced. Molecular interactions and structures of binary mixtures have been discussed from the excess molar volumes V ^E.

GRAPHICAL ABSTRACT

Keywords:

• Aliquat 336
• conductivity
• density
• formamide
• viscosity

Notes

*Value which was mentioned by the supplier.

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