Abstract
The evaporation of ethanol in an ethanol/nonionic surfactant/water system was investigated. The evaporation of ethanol from the surfactant ethanolic solution was very much controlled by the surface film which was formed by absorped of water in the solution or in the atmosphere.
The surface film was confirmed to be a liquid crystal consisting of ethanol, surfactant and water based on findings from phase diagrams and polarizing microscopic observations.
