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  • Triethanolamine vs Triethylamine

Triethanolamine vs Triethylamine

The Debate between Triethanolamine and Triethylamine

In the field of chemical industry, both triethanolamine and triethylamine are special agents. Although the two have similar names, their properties are different, which cannot be ignored.

Triethanolamine, like a colorless to light yellow viscous liquid, is hygroscopic and can be miscible with water and alcohol. Its mild nature makes it useful in various industries. In the genus of daily chemicals, it is often an emulsifier and pH regulator. When making creams and emulsions, it can evenly mix the oil-phase-water phase and has a fine texture. And it can adjust the pH of the product to protect the skin from irritation. In metal processing, it is an ingredient of cutting fluid and rust inhibitor. It can reduce the friction between the tool and the workpiece, reduce wear and tear, and prevent metal corrosion, prolonging the life of the instrument.

In contrast, triethylamine is a colorless and transparent liquid with a pungent smell. Its alkalinity is strong and volatile quickly. In the process of organic synthesis, it is often used as an acid binding agent. Such as esterification and amidation reactions, it can be combined with the generated acid to promote the positive progress of the reaction. In the rubber industry, it is a vulcanization accelerator, which can speed up the vulcanization process of rubber and improve the physical properties of vulcanized rubber.

However, there are many differences between the two. From the perspective of physical properties, triethanolamine has a high boiling point and a high viscosity; triethylamine has a low boiling point, is volatile, and has a small viscosity. In terms of chemical properties, triethanolamine has weak alkalinity and strong hydrophilicity; triethylamine has strong alkalinity and better lipophilicity.

Therefore, chemical industry operators should carefully review their properties and choose them as needed. It is necessary to observe the differences between the two, resulting in misuse and regret. Only by understanding its characteristics and making good use can we achieve twice the result in the chemical industry and promote the prosperity of the industry.