Sodium lauryl sulfate
Sodium Lauryl Sulfate
Sodium lauryl sulfate (pronunciation: SO-dee-um LO-ree-ul SUL-fate), also known as SLS, is a common ingredient found in many cleaning and hygiene products. It is a detergent and surfactant which means it breaks surface tension and separates molecules, allowing better interaction between the product and your skin or hair.
Etymology
The term "sodium lauryl sulfate" is derived from its chemical structure. "Sodium" refers to the sodium ion that is part of the compound. "Lauryl" refers to the 12-carbon fatty acid chain (also known as dodecanoic acid) that is part of the molecule. "Sulfate" refers to the sulfate ion that is part of the compound.
Usage
Sodium lauryl sulfate is used in a variety of products including shampoo, toothpaste, soap, and laundry detergent. It is an effective foaming agent, providing a lathering effect that makes these products more effective at cleaning.
Related Terms
- Sodium laureth sulfate: A similar compound to sodium lauryl sulfate, but with a slightly different chemical structure. It is also used as a detergent and surfactant in many personal care products.
- Detergent: A substance used for cleaning that is often made from synthetic or man-made materials.
- Surfactant: A substance that reduces the surface tension of a liquid, allowing it to spread more easily.
Health Concerns
While sodium lauryl sulfate is generally considered safe for use in cosmetics and personal care products, it can cause irritation to the eyes, skin, and lungs, especially with prolonged or repeated exposure. Some people may also have an allergic reaction to it.
See Also
External links
- Medical encyclopedia article on Sodium lauryl sulfate
- Wikipedia's article - Sodium lauryl sulfate
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