Category: Amines

Low molecular weight amines are also soluble in water—the hydrogen bonding between amines and water, as shown in Figure 4, results in this solubility. The water solubility of amines decreases as the molecular weight increases. Generally, amines with fewer than five carbon atoms are water-soluble.

basic Amine are basic and easily react with the hydrogen of acids which are electron poor as seen below. Amines are one of the only neutral functional groups which are considered basis which is a consequence of the presence of the lone pair electrons on the nitrogen.

Amines are used in making azo-dyes and nylon apart from medicines and drugs. They are widely used in developing chemicals for crop protection, medication and water purification. They also find use in products of personal care. Ethanol amines are the most common type of amine used in the global market.

* Amines are generally basic in nature as there is the presence of a lone pair of electrons on nitrogen. The basicity of amines can be compared with respect to ammonia, by comparing the availability of pairs of electrons on nitrogen.

Aqueous monoethanolamine (MEA), diglycolamine (DGA), diethanolamine (DEA), diisopropanolamine (DIPA) and methyldiethanolamine (MDEA) are widely used industrially for removing carbon dioxide (CO2) and hydrogen sulfide (H2S) from natural gas and refinery process streams.