Sodium Lauryl Sulfate (K12)

Basic Info:

  • Chemical Synonym(s): Sodium dodecyl sulfate; Sodium dodecyl sulfate (SDS); Dodecyl sulfate sodium salt,DNAse,RNAse and Protease free; Lauryl sulfate sodium salt
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  • CAS Number: 151-21-3
  • Chemical Formula:

    C12H25NaO4S

  • MSDS: Download

Characteristics: 

Density
1.03 g/mL at 20 °C
Storage tempstorage temp
2-8°C
Color
White to pale yellow
PH
6-9 (10g/l,H2O, 20℃)
PSA
74.81000
LogP
4.46490
Molecular Weight
288.37900
Melting Point
206ºC
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Introduction:

Sodium Lauryl Sulfate is a white, crystalline or powdered residue and an important emulsifier. It can be found in shampoos, toothpaste, soap.

It is a surfactant and wetting agent that can remove oils, stains or other soils from surfaces by emulsifying them. It also acts as a mild defoaming agent and foam stabiliser for some polyurethane foams.

Due to its foam-building properties, it is often found in personal-care products such as shampoo, bubble baths, toothpaste, and other items.

It has excellent thickening and dispersing properties that make it suitable as an additive to shampoos and liquid hand soaps. Some anti-acne preparations may include it. 

Applications:

Sodium Lauryl Sulfate (K12) is a surfactant and wetting agent that can remove oils, stains or other soils from surfaces by emulsifying them.

So it can be used to help remove grease from dirty dishes, lather up shampoos and create bubbles in detergents, and even for skincare treatments.

In the medical field, it's also been used to penetrate wounds that otherwise wouldn't heal quickly enough because of non-stop exposure to oxygen. It has excellent thickening and dispersing properties that make it suitable as an additive to shampoos and liquid hand soaps.

Although it is potential health implications, it has been credited with killing up to 99% of bacteria on a user's hands or other surfaces.

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