C12H25OS3Na

C12H25OS3Na is a chemical compound with the molecular formula C12H25OS3Na. It is a sodium salt of a triester of sulfuric acid, specifically sodium dodecyl sulfate. This compound is commonly known as sodium lauryl sulfate (SLS) or sodium dodecyl sulfate (SDS). It is widely used in various industries due to its surfactant properties.

Sodium lauryl sulfate is an anionic surfactant, meaning it has a negatively charged polar head group and a nonpolar hydrocarbon tail. This structure allows it to lower the surface tension of water, making it effective in cleaning and foaming. It is commonly found in personal care products such as shampoos, toothpastes, and body washes. In the industrial sector, it is used in detergents, textiles, and as a foaming agent in firefighting foams.

The compound is synthesized by reacting lauryl alcohol with sulfuric acid, followed by neutralization with sodium hydroxide. It is soluble in water and has a critical micelle concentration (CMC) of approximately 0.008 mol/L, indicating its effectiveness as a surfactant.

Sodium lauryl sulfate is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) for use in cosmetics and personal care products. However, it has been a subject of debate regarding its potential health effects, particularly its impact on the skin and hair. Some studies suggest that it may cause irritation, dryness, and scalp irritation, while others indicate that it is safe when used as directed.

In summary, C12H25OS3Na, or sodium lauryl sulfate, is a versatile surfactant with applications in personal care and industrial products. Its surfactant properties make it effective in cleaning and foaming, but its potential health effects are a topic of ongoing research and discussion.