In this paper, the methods of synthesis and purification of a new kind of ionic liquids—sodium 2,5,8,11-tetraoxatridecan-13-oate ([Na][TOTO]) were improved. The structure and purity of [Na][TOTO] were confirmed by 1H-NMR spectrum,13C-NMR spectrum, themogravimetic analysis(TGA), elemental analysis(EL) and infrared spectrum(IR). Densities, viscosities and electrical conductivities for three binary mixtures ([Na][TOTO]+water, [Na][TOTO]+ethanol and [Na][TOTO]+methanol) have been measured at the temperature ran...