MICROEMULSIONS WITH BUTYL LACTATE AS COSURFACTANT

The use of butyl lactate as cosurfactant on the preparation of microem ulsions with anionic surfactant is suggested. A parallel study between the classical system water/sodium dodecyl sulphate/pentanol and the p roposed water/sodium dodecyl sulphate/butyl lactate has been carried o ut on their capacities of incorporating heptane as lipophilic componen t. The results obtained show the ability of butyl lactate to prepare m icroemulsions, allowing the incorporation of heptane up to contents of 30-40% at higher dilutions with water than the classical system conta ining pentanol.