The various physical properties of Phosphonium cation based Ionic Liquid

Tetradecyl trimethyl phosphonoium bis(2-ethyl hexyl) phosphate was synthesized and analyzed to determine their characteristics and properties. The low conductivity (7.69 x 10-6) and high viscosity (424.7mpaS) of Tetradecyl trimethyl phosphonoium bis( 2 -ethyl hexyl) phosphate were exhibited. Phosphonium cation based ionic liquids (ILs) have become of interest due to their unique chemical and electrochemical stability as well as their promising tribological properties. At the same time, interest has also grown in the use of phosphate based ionic liquids for corrosion protection of reactive metals. In this paper, corrosion behavior on Al current collector was tested at room temperature. Tetradecyl trimethyl phosphonoium bis(2~ethyl hexyl)phosphate is a good protecting candidate of Al corrosion was measured.