The rest of the region on the phase diagram represents the turbid and conventional emulsionsbased on visual observation.
No liquid crystalline structure wasobserved using cross polarizer.
The area of microemulsion isotropicregion changed slightly in size with the increasing ratio of surfac-tant to cosurfactant.
A similar result was obtained from an ethyllaurate-based microemulsion system with Tween 80 as surfactant,propylene glycol and ethanol as cosurfactant