What is the use of sodium lauryl sulfate

Sodium dodecyl sulfate is very unfamiliar to many people. This substance is mainly seen in chemical terms. Of course, this substance is also commonly used in industry. Sodium lauryl sulfate has a wide range of uses. It is a light yellow substance that can dissolve in water. We may use it in many cases in our lives. Some objects also contain sodium lauryl sulfate. However, when this substance is extracted alone, it will make people feel very unfamiliar. Sodium lauryl sulfate is also present in some cosmetic ingredients, so you need to discover the specific uses of sodium lauryl sulfate yourself.

1. Function

It is a white or light yellow slightly sticky substance, commonly used in detergents and textile industries. It is an anionic surfactant. It is easily soluble in water, has good compatibility with anions and non-ions, has good emulsification, foaming, penetration, detergency and dispersing properties, and is widely used in toothpaste, shampoo, shampoo cream, washing powder, liquid washing, cosmetics and plastic demoulding, lubrication, as well as pharmaceutical, papermaking, building materials, chemical and other industries.

2. Purpose

(1) Used as detergent and textile auxiliary agent, also used as toothpaste foaming agent, mine fire extinguishing agent, emulsion polymerization emulsifier, wool detergent, etc.

(2) Used as anionic surfactant, emulsifier and foaming agent. (3) GB 2760-96 stipulates that it is a processing aid for the food industry. Foaming agent; emulsifier; anionic surfactant. Used in cakes, beverages, egg whites, fresh fruits, fruit juice drinks, cooking oil, etc.

(4) Used as an emulsifier for medicines, cosmetics, and synthetic resins. Toothpaste, foaming agent for fire extinguishers. Used as a detergent for fine silk and wool fabrics. Flotation agent for metal ore dressing.

(5) It is used as a washing and textile auxiliary agent, a toothpaste foaming agent, a fire extinguishing foam, an emulsifier for emulsion polymerization, an emulsifying dispersant for medicine, a shampoo and other cosmetic products, and a wool detergent.

(6) Biochemical analysis, electrophoresis, ion pair reagents

3. Detergent

Sodium dodecyl sulfate is a commonly used ionic detergent that can disintegrate cell membranes, bind to the hydrophobic part of membrane proteins and separate them from the membrane. High concentrations of SDS can also destroy non-covalent bonds such as ionic bonds and hydrogen bonds in proteins, and even change the conformation of proteins. This property is often used in SDS gel electrophoresis for protein composition analysis.