Interfacial tension (IFT) plays an important role in mass and heat transfer particularly in extraction process [1]. Concerning tangible lack of investigation about influence of ionic liquids (ILs), the salts exclusively composed of ions with low melting points, this article is focused on the IFT variation in the presence of the ILs, since ILs demonstrate excellent surface/interface activity because they possess amphiphilic structure. A majority of recent literatures are focused on the properties of “imidazolium” ILs. These are environmentally friendly fluids and behave as green solvents or surfactant [2].
