Abstract

Sagar R. Wagh, Mayur B. Patil, Aparna S. Musale, Harshal D. Mahajan, Rajendra D. Wagh

ABSTRACT

Microemulsion are clear, thermodynamically stable, isotropic liquid mixtures of oil, water and surfactant, frequently in combination with a cosurfactant. The aqueous phase may contain salt(s) and/or other ingredients, and the "oil" may actually be a complex mixture of different hydrocarbons and olefins. In contrast to ordinary emulsions, microemulsions form upon simple mixing of the components and do not require the high shear conditions generally used in the formation of ordinary emulsions.In addition, the size of the droplets in such microemulsions remains constant and ranges from 100-1000 A0(10-100 nm), and has very low oil/water interfacial tension. Because the droplet size is less than 25% of the wavelength of visible light,microemulsions are transparent.[1,2]