Application scope and purpose of triethanolamine

Triethanolamine is generated by the reaction of ethylene oxide and ammonia water, and its refined product is a colorless viscous liquid. Highly hygroscopic, turns yellow brown in air, is an organic compound that is easily soluble in water and ethanol, and slightly soluble in ether and benzene. Triethanolamine has weak alkalinity and can react with inorganic or organic acids to form salts.

Application scope of triethanolamine:

1. Used as emulsifiers, moisturizers, humidifiers, thickeners, and pH stabilizers in cosmetics. It is a commonly used emulsifier in the cream preparation. The cream product emulsified with triethanolamine has the characteristics of fine and white cream. It is the most commonly used neutralizer containing acidic polymer gel such as carbomer. By neutralizing the carboxyl group of carbomer, it forms a stable polymer structure to achieve the application effect of thickening and moisturizing.

2. Adding triethanolamine to liquid detergents can improve the removal of oily dirt, especially non-polar sebum. At the same time, increasing alkalinity can enhance the cleaning performance. And it has excellent compatibility.

3. As a desulfurizer, triethanolamine is a key desulfurizer component in boiler water treatment, automotive engine coolant, drilling teams, and cutting fluid agents.

4. Used as a curing agent for epoxy resin. It can also be used as a vulcanization activator for natural rubber and synthetic rubber, a polymerization activator for nitrile rubber, and as a lubricant and anti-corrosion additive. The long-chain fatty acid salts of triethanolamine are almost neutral and can be used as emulsifiers for oils and waxes.

5. Triethanolamine is an important additive in water-based cutting fluids. It has a synergistic anti rust effect with water-soluble rust inhibitors such as phenylethanolamine, sodium benzoate, borax, and sodium carbonate. When used in combination, it can significantly improve the anti rust ability of water-based cutting fluids.

6. Used as a chelating reagent for aluminum ions in solution.

7. Triethanolamine and its salt solution, as engineering additives and early strength agents (0.1% of total mass) in cement clinker grinding process, can not only prevent the aggregation of powder particles and air cushion effect during the crushing process, improve the fluidity and packing density of cement, but also reduce the power consumption of the crusher.

8. The triethanolamine oleate produced by reacting with oleic acid under high-temperature catalyst conditions is an important preparation component for corrosion inhibitors in mechanical processing industries such as boiler water treatment, automotive engine coolant, drilling and cutting oil agents, protecting metal surfaces and preventing oxidation.

9. Used as a gas chromatography stationary phase and a highly efficient chelating agent for various heavy metals.

10. In alkaline zincate galvanizing, it can complex with zinc, improve the cathodic polarization of the plating solution, and make the coating crystal fine. A high content will reduce the deposition rate, while a low content will make the coating gray and rough, with poor dispersion. But the high viscosity of triethanolamine reduces the upper limit of the current density of the plating solution.

11. It is a good solvent and moisture absorbent used in the textile industry. It is the raw material of fabric softener.

12. As an industrial gas purifier, it is used in exhaust gas treatment to remove acidic gases such as hydrogen sulfide and carbon dioxide.