Measurement of electrical conductivity, Osmotic Coefficients and Refractive Indices of aqueous solution of ionic liquid, 1-propyl-3-methylimidazolium methyl sulfate at T=(298.15 to 328.15)

Ionic liquids have been suggested as green and benign replacements for traditional volatile organic solvents and growing number of applications such as catalysis, chemical reactions, separations,electrochemistry and nanoscience investigations [1-3].they are new class of organic salts purely ionic, salt-like materials with a melting temperature below 100°C. Their important properties are negligible vapor pressure good thermal stability, a wide liquid range, excellent solvent power for organic and inorganic, and polymeric compounds,suitable viscosity, and nonflammable. They can replace for toxic,flammable traditional volatile organic solvents in many research andindustrial applications [4–8].