Triethylamine,CAS 121-44-8

Triethylamine is a colorless liquid. Strong ammonia odor. Colorless to yellowish liquid; fishy aroma.ChEBI: A tertiary amine that is ammonia in which each hydrogen atom is substituted by an ethyl group.A clear colorless liquid with a strong ammonia to fish-like odor. Flash point 20°F. Vapors irritate the eyes and mucous membranes. Less dense (6.1 lb / gal) than water. Vapors heavier than air. Produces toxic oxides of nitrogen when burned.

Triethylamine Use and Manufacturing
Methods of Manufacturing
1. Available with ethanol and ammonia methy. The ethanol and liquid ammonia are preheated in a preheater (150 ± 5 ℃) in the presence of hydrogen gas and then fed into a first reactor (190 ± 2 ℃) equipped with a copper-nickel-clay catalyst and The second reactor (165 ± 2 ℃) synthesis, resulting in a ethylamine; diethylamine; triethylamine mixture, after condensation, and then by ethanol spray absorption triethanolamine crude, the final separation; dehydration and fractionation , Collecting 88-90 ℃ distillate triethylamine. (99%) 150 standard cubic meters, t; hydrogen gas (99%), the standard consumption of raw materials: ethanol (95%) 2300kg, t; Refining method: often contain ethylamine, diethylamine and acetaldehyde and other impurities, generally refined by fractional distillation. To remove traces of primary and secondary amines, acetic anhydride, benzoic anhydride or phthalic anhydride may be added and refluxed after fractionation. The distillate may be dried with activated alumina or solid potassium hydroxide and then distilled. Other purification methods are: the triethylamine into hydrochloride, and then ethanol recrystallization, to the melting point of 254 ℃, with sodium hydroxide aqueous solution to free the triethylamine, the solid potassium hydroxide after drying, In the presence of sodium in the nitrogen stream was distilled pure.
2. In the presence of oxygen, ethanol and ammonia in copper, nickel, clay catalyst in the presence of heating synthesis reaction, generating one, Di- and triethylamine mixtures. The mixture is condensed, extracted and absorbed to obtain crude product. Crude and then separated, standing layered, dehydration, distillation that was the product.
3. Mix ethanol (kg), liquid ammonia (kg) and hydrogen (standard m3) in a proportion of 23:50:15 and then preheat to 145-155 ℃, then feed the first reactor with copper nickel clay catalyst (About 190 ℃) and the second reactor (about 165 ℃) to form a mixture of ethylamine, diethylamine and triethylamine, condensed and condensed, collecting 88 ~ 90 ℃ distillate triethylamine.
4. Synthesis: Ethyl chloride and ammonia from heating under pressure derived.

Uses
Triethylamine is a clear, colorless liquid with an Ammonia or fish-like odor. It is used in making waterproofing agents, and as a catalyst, corrosion inhibitor and propellant.
It is mainly used as base, catalyst, solvent and raw material in organic synthesis and is generally abbreviated as Et3N, NEt3 or TEA. It can be used to prepare phosgene polycarbonate catalyst, polymerization inhibitor of tetrafluoroethylene, rubber vulcanization accelerator, special solvent in paint remover, enamel