Sodium laureth sulfate

  • SLES
  • Sodium Laureth Sulfate (INCI)
  • Sodium lauryl ether sulfate
  • 9004-82-4
  • 3088-31-1 ( Sodium Laureth Sulfate Glycol )

Yellowish paste or liquid ( 70 % and 28 % in water)

Liquid

1.05 g · cm -3 ( 10proz. solution)

Soluble in water

1600 mg · kg -1 ( LD50, rat, oral)

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Natriumdodecylpoly (oxyethylene ) sulfate ( sodium lauryl ether sulfate, Eng. Sodium laureth sulfate, SLES) is an ether sulfate, ethoxylated form of sodium lauryl sulfate and is among the anionic surfactants. Usual commercial forms are aqueous preparations containing 70 % ( paste ) or 28 % (liquid) of detergent.

Use

Sodium laureth sulfate is a strong oil-and grease-dissolving detergent. With its additional foaming property SLES is used in many personal care products, but also for the production of foam concrete, as a foaming agent and as a degreaser. SLES is used in toothpastes, shampoos, cosmetics, shower gels, liquid soaps etc..

Representation

Dodecanol is first reacted with ethylene oxide. The number of oxyethylene units is typically about 2 is then sulfated with sulfur trioxide. It is a by- product injurious to health 1,4- dioxane.

Hazards

SLES is considered to be a skin irritant and can lead to dehydration of the skin. For SLES occasionally imputed carcinogenic (cancer- causing) effects are no scientific evidence.

International Nomenclature of Cosmetic Ingredients CAS registry number 1,4-Dioxane
595051
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