Sodium Lauryl Sulfate（Or named Sodium dodecyl sulfate , SLS , K12） is an anionic surfactant, which is a white to pale yellow solid (can be divided into needle shaped or powder shaped), easily soluble in water, and has good compatibility with anions and non-ions. It has good emulsifying, foaming, penetrating, cleaning, and dispersing properties. Widely used in industries such as pharmaceuticals, papermaking, building materials, chemicals, textiles, oil extraction, cosmetics, detergents, toothpaste, shampoo, laundry detergent, plastic mold release lubrication, etc.
The function and use of sodium dodecyl sulfate:
1. It is mainly used as a foaming agent, cleaning agent, and moisturizing agent in cosmetics and skincare products (to make cosmetics come into contact with the skin as soon as possible and avoid being blocked by skin oils), which is relatively safe and does not cause acne;
2. Used as a detergent, textile bleaching aid, and carpet dyeing agent;
3. Wool detergent;
4. Leather softener;
5. Used as a foaming agent for toothpaste and fire extinguishers;
6. Used as a cooking and penetrating agent in papermaking;
7. Oil well and mine fire extinguishing agents;
8. Emulsifier for styrene butadiene and acrylic acid emulsion lotion polymerization;
9. Emulsifiers for synthetic resins;
10. Flotation agents for metal beneficiation;
11. Biochemical analysis, ion pair reagents;
12. As an anionic surface penetrant in pesticides, it is generally added at a dosage of 0.1% -0.3% in water-soluble pesticides, which can significantly increase the absorption of drugs by leaves;
13. Sodium dodecyl sulfate is a commonly used ionic descaling agent that can cause cell membrane disintegration, bind to hydrophobic parts of membrane proteins, and separate them from the membrane. High concentrations of SDS can also break non covalent bonds such as ionic and hydrogen bonds in proteins, and even change the conformation of proteins. This characteristic is often used in SDS gel electrophoresis for protein composition analysis;
14. As a wetting agent in electroplating, it can reduce the surface tension between the plating solution and the workpiece, remove hydrogen bubbles on the surface of the workpiece, and prevent pinholes. It is generally used in nickel plating solutions;
15. Used as a mortar admixture, it can reduce water, increase workability, and retain water;
16. Producing cement as a grinding aid;
17. As a surfactant in the coating industry, it can reduce the surface tension of coatings and better distribute them on the surface of objects;
18. Adding sodium dodecyl sulfate solution to aluminum alloy during oxidation treatment can reduce surface tension, making it easier for oxidant molecules to come into contact with the metal and resulting in a tighter reaction;
19. GB 2760-96 specifies processing aids for the food industry. Used for cakes, beverages, egg whites, fresh fruits, fruit juice drinks, edible oils, etc;
20. Sodium dodecyl sulfate is a commonly used pharmaceutical excipient, which is an anionic surfactant that can be used as a solubilizer, emulsifier, skin penetrating agent, lubricant, and wetting agent for tablets and capsules.
1. It is mainly used as a foaming agent, cleaning agent, and moisturizing agent in cosmetics and skincare products (to make cosmetics come into contact with the skin as soon as possible and avoid being blocked by skin oils), which is relatively safe and does not cause acne;
2. Used as a detergent, textile bleaching aid, and carpet dyeing agent;
3. Wool detergent;
4. Leather softener;
5. Used as a foaming agent for toothpaste and fire extinguishers;
6. Used as a cooking and penetrating agent in papermaking;
7. Oil well and mine fire extinguishing agents;
8. Emulsifier for styrene butadiene and acrylic acid emulsion lotion polymerization;
9. Emulsifiers for synthetic resins;
10. Flotation agents for metal beneficiation;
11. Biochemical analysis, ion pair reagents;
12. As an anionic surface penetrant in pesticides, it is generally added at a dosage of 0.1% -0.3% in water-soluble pesticides, which can significantly increase the absorption of drugs by leaves;
13. Sodium dodecyl sulfate is a commonly used ionic descaling agent that can cause cell membrane disintegration, bind to hydrophobic parts of membrane proteins, and separate them from the membrane. High concentrations of SDS can also break non covalent bonds such as ionic and hydrogen bonds in proteins, and even change the conformation of proteins. This characteristic is often used in SDS gel electrophoresis for protein composition analysis;
14. As a wetting agent in electroplating, it can reduce the surface tension between the plating solution and the workpiece, remove hydrogen bubbles on the surface of the workpiece, and prevent pinholes. It is generally used in nickel plating solutions;
15. Used as a mortar admixture, it can reduce water, increase workability, and retain water;
16. Producing cement as a grinding aid;
17. As a surfactant in the coating industry, it can reduce the surface tension of coatings and better distribute them on the surface of objects;
18. Adding sodium dodecyl sulfate solution to aluminum alloy during oxidation treatment can reduce surface tension, making it easier for oxidant molecules to come into contact with the metal and resulting in a tighter reaction;
19. GB 2760-96 specifies processing aids for the food industry. Used for cakes, beverages, egg whites, fresh fruits, fruit juice drinks, edible oils, etc;
20. Sodium dodecyl sulfate is a commonly used pharmaceutical excipient, which is an anionic surfactant that can be used as a solubilizer, emulsifier, skin penetrating agent, lubricant, and wetting agent for tablets and capsules.