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Diethanolamine (DEA)
Diethanolamine contains a secondary amine and two alcohol groups. It is a viscous liquid with a freezing point of 28 ºC. It is mainly used for gas sweetening and in the manufacture of light-duty detergents and shampoos and can be cyclized to morpholine.
DEA is Completely Solubility in solvents such as Acetone and its Density at 20°C is about 1100 kg/m³ ,Diethanolamine, often abbreviated as DEA or DEOA, is an organic compound with the formula HN(CH2CH2OH)2. Diethanolamine is polyfunctional, being a secondary amine and a diol. Like other organic amines, Diethanolamine acts as a weak base. DEA is used as a surfactant and a corrosion inhibitor. It is used to remove hydrogen sulfide and carbon dioxide from natural gas. Diethanolamine is widely used in the preparation of Diethanolamides and Diethanolamine salts of long-chain fatty acids that are formulated into soaps and surfactants used in liquid laundry and dishwashing detergents, cosmetics, shampoos and hair conditioners , added to confer a creamy texture and foaming action.
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In oil refineries, a DEA in water solution is commonly used to remove hydrogen sulfide from sour gas. It has an advantage over a similar amine, ethanolamine, in that a higher concentration may be used for the same corrosion potential. This allows refiners to scrub hydrogen sulfide at a lower circulating amine rate with less overall energy usage. DEA is a chemical feedstock used in the production of morpholine.
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