Abstract

A REVIEW ON SODIUM LAURYL SULPHATE- A SURFACTANT

E. Nirmala*, S. Dhivya, S. Sarojini and S. Duraivel

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Abstract

Surfactants are compounds that reduce the surface tension between two phases. It is a polymer like substance which has both polar and nonpolar groups. Surfactants are generally classified into Anionic, cationic, amphoteric and non-ionic. Among surfactants, anionic surfactant -Sodium lauryl sulfate (SLS) has unique properties such as Anionic emulsifier, detergent, solubilizers, Tablet and capsule lubricant, wetting agent and as excipient in dissolvable dosage forms. It is naturally derived from coconut and/or palm kernel oil. It usually consists of a mixture of sodium alkyl sulphates, mainly the lauryl alcohol. It is also employed in a wide range of nonparenteral formulations, cosmetics and food additives.

Keywords: SLS, Surfactant, Anionic emulsifier, Solubilizers.