Abstract

Methylamines are derivatives of ammonia with one, two, or all three hydrogen atoms replaced by methyl groups. Amines with alkyl groups of 2-6 carbons are known as aliphatic amines, and amines with still larger alkyl groups are known as fatty amines. Methylamines are soluble in various organic solvents. All have a strong fishy odor. Methylamines are toxic, colorless gases or compressed liquids. They are highly flammable. Methylamines can be prepared by a variety of methods. Commercial processes involve reaction of methanol with ammonia to form the corresponding mono-, di-, and tri-methylamines. Methylamines are used as intermediates for the manufacture of solvents, agricultural chemicals, water treatment chemicals, pharmaceuticals, surfactants, rubber chemicals, and food/feed additives.