n,n-dimethylethanolamine (dmea) is a colorless liquid with a fishy odour. it is used in a variety of industrial applications including the production of resins, pharmaceuticals and cosmetics. it is also used as a corrosion inhibitor and defoamer.
dmea can be synthesized by reacting acetaldehyde with ammonia and formaldehyde. the reaction is carried out in the presence of a catalyst such as hydrochloric acid. the reaction is exothermic and the product is a mixture of dmea and 2-methylaminoethanol (mea). mea can be separated from dmea by distillation.
the following is the chemical formula for the synthesis of dmea:
ch3cho + nh3 + ch2o -> (ch3)2nch2ch2oh
dmea can also be synthesized by the reaction of ethylamine and formaldehyde. the reaction is carried out in the presence of a catalyst such as hydrochloric acid. the reaction is exothermic and the product is a mixture of dmea and ethanolamine (ea). ea can be separated from dmea by distillation.
this is the chemical equation for the synthesis of dmea from ethylamine:
ch3ch2nh2 + ch2o -> (ch3)2nch2ch2oh
dmea is a hazardous substance. it is flammable and irritating to skin and eyes. it is also a potential carcinogen.
dmea should be stored in a cool, dry place. keep away from heat, sparks and open flames. dispose of in accordance with local regulations.
