Nátriumsztearát

Nátriumsztearát, also known as sodium stearate, is the sodium salt of stearic acid. It is a common ingredient in a wide range of consumer products, primarily functioning as a surfactant, emulsifier, and thickener. Its chemical formula is C18H35NaO2.

In its pure form, nátriumsztearát is a white solid. It is produced through the saponification of fats and oils, or by the neutralization of stearic acid with a sodium base. This process results in a compound that has both hydrophobic (water-repelling) and hydrophilic (water-attracting) properties, making it effective at bridging oil and water phases.

Nátriumsztearát is widely used in the manufacturing of soaps and detergents. In these applications, it acts as a cleaning agent by helping to lift and suspend dirt and grease in water. It contributes to the lathering and cleansing properties of many bar soaps.

Beyond cleaning products, nátriumsztearát serves as an emulsifier in cosmetics and personal care items such as lotions, creams, and toothpaste. It helps to stabilize mixtures of oil and water, preventing separation and ensuring a smooth, consistent texture. It can also act as a thickener, contributing to the desired viscosity of these products. Additionally, it finds use as a lubricant and mold release agent in the plastics industry and as a stabilizer in some food products, though its use in food is subject to regulatory approval.