Magnesium oleth sulfate (inci)

Synonym(s)

.alpha.-sulfo-.omega.-(9-(Z)-octadecenyl)oxy-; CAS number: 87569-97-9; Magnesium oleth sulfate; Magnesium polyoxyethylene (1-4)oleyl ether sulphate; magnesium salts (2:1); poly(oxy-1,2-ethanediyl)

Definition
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Magnesium oleth sulfate is used in cosmetic formulations. The substance acts as a surfactant (washing-active substance); furthermore the substance cleans the body surface.

Oleth(e) are the polyoxyethylene ethers of the fatty alcohol derived from oleic acid (for comparison see: laurethe as polyoxyethylene ether of lauryl alcohol; steareth as polyoxyethylene ether of stearyl alcohol and others).

Polyalkylene glycol ethers are non-ionic surfactants whose lipophilic part consists of fatty alcohols (e.g. lauryl alcohol, palmitic alcohol, stearyl alcohols, etc.). The hydrophilic part is formed by short-chain polyethylene glycols (polyoxyethylene). In the designation of fatty alcohol polyglycol ethers, the inserted numbering means the average number of ethylene oxide units per mole.