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amine |
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amine (əmēn`, ăm`ēn): see under amino group amine. Amines are derivatives of the inorganic compound ammonia , NH3. When one, two, or all three of the hydrogens in ammonia are replaced by an alkyl or aryl group, the resulting compound is known as a primary, secondary, or tertiary amine, respectively. ..... Click the link for more information. . amineAny of a class of nitrogen-containing organic compounds derived, either in principle or in practice, from ammonia (NH3). Almost all their chemical names end in -ine. Replacement of one, two, or all three of the hydrogen atoms in ammonia with organic groups yields primary, secondary, or tertiary amines, respectively. Addition of a fourth hydrogen with an accompanying positive charge on the nitrogen atom results in a quaternary amine. Naturally occurring amines include alkaloids, present in certain plants; some neurotransmitters, including dopamine and epinephrine; and histamine. Industrially important amines include aniline, ethanolamine, and others, used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and in a host of other applications. A nitrogen atom with one or two hydrogens is often referred to as an amino group. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Higher molecular weight nitrosamines and sterically hindered nitrosamines are not included on this list because the secondary amines needed to generate these nitrosamines are not volatile enough to get airborne at ambient temperatures. Naugard line of antioxidants includes hindered phenolics and bisphenolics, secondary amines, and phosphites. Indeed, his first tests confirmed that PEI's primary and secondary amines would absorb the pollutant from air recirculating through a filter coated with the plastic. |
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