Diethanolamine (DEA) is a colorless liquid with a heavy ammonia smell.

  • CAS #: 111-42-2
  • EINECS #: 203-868-0
  • Synonyms: N,N-Diethanolamine
  • Formula: HN (CH2CH2OH)2


The flash point of this product is 310°F and it is completely miscible in water. This product is considered hazardous and falls under Packing Group III.


DEA can remove hydrogen sulfide and carbon dioxide in natural gas and liquid gas streams. It is also a neutralizing agent for fatty acids and sulfonated surfactants in cosmetics. Other applications include: rubber, coatings, detergents, gas treatments, and metal working fluids.

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