SODIUM LAURYL SULFATE (SLS-SDS), 92%, kg

Sodium dodecyl sulphate (SDS) or sodium lauryl sulphate (SLS), sometimes spelled sodium lauryl sulphate, is an organic compound found as an anionic surfactant used in many cleaning and hygiene products. Its hydrocarbon tail, together with a polar 'head group', gives the compound amphiphilic properties, making it useful as a detergent. SDS is also part of blends made from inexpensive coconut and palm oils. SDS is a common ingredient in many household cleaning, personal care and cosmetic, pharmaceutical and food products as well as industrial and commercial cleaning products.

In cosmetics, it is used as a highly active surfactant for the removal of greasy, tough soils. It is a dried powder of sodium lauryl sulphate which allows the formation of a fine creamy foam. It is also a good emulsifier and an excellent wetting agent with good electrolyte tolerance, making it ideal for use as a basic surfactant. High concentrations are used for floor and car washing; low concentrations are used for toothpaste, shampoos, shaving and cosmetic bath foams. High foaming. SLS is also used for its thickening properties in the presence of higher levels of electrolytes. Main INCI functions:

• Cleaning: helps to maintain a clean surface
• Denaturant: Makes cosmetics unpleasant. Mainly added to cosmetics containing ethyl alcohol
• Foaming: collection of small air bubbles or other gases in a small volume of liquid by changing the surface tension of the liquid.
• Surfactant: reduces the surface tension of the cosmetic and contributes to the even distribution of the product on application

In the cleaning industry, SDS is mainly used in laundry detergents for a wide range of cleaning products. It is a highly effective surfactant and is used in any task requiring the removal of greasy stains and residues. For example, it is found in higher concentrations in industrial products including engine degreasers, floor cleaners and car exterior cleaners.

In pharmaceuticals, sodium lauryl sulphate is used as an ionic solvent and emulsifier, suitable for use in liquid dispersions, solutions, emulsions and micro-emulsions, tablets, foams and semi-solids such as creams, lotions and gels. In addition, SLS helps the tablets to moisten and has a lubricating effect during manufacture.

In medicine, SLS has been proposed as a potentially effective topical microbicide for intravaginal administration to inhibit and possibly prevent infections caused by a variety of enveloped and non-enveloped viruses, such as herpes simplex viruses, HIV, and Semliki Forest virus.

In the food industry, sodium dodecyl sulphate, synonymous with sodium lauryl sulphate (SLS), is considered as a Generally Recognised As Safe (GRAS) ingredient for use in food. It is used as an emulsifier and whipping aid. It is used as an emulsifier in egg whites or egg white products up to a maximum of 0,1 % by weight of egg whites. In frozen or liquid egg whites and as a whipping agent for the preparation of marshmallows, it shall not exceed 0,5 % by weight of gelatine. SLS has been shown to temporarily reduce the perception of sweetness.

In biochemistry, this compound is also used in the electrophoresis of polyacrylamidosols during DNA extraction to denature proteins. It breaks the non-covalent (hydrogen) bonds between proteins and disrupts the overall structure of the molecule.

In schools, SLS is used in fun experiments such as "elephant toothpaste", "burning foam", "soap bubbles", "sea of foam", etc., where it is necessary to induce foaming and to keep them stable for a longer time at different pH and temperature conditions.

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