The simplest primary aromatic amine is Aniline Chemical, which is created when an amino group replaces a hydrogen atom in the benzene molecule. It is an odorous, white liquid that resembles oil that is barely soluble in water at 370 C, but it dissolves in ethanol, ether, chloroform, and other organic solvents. In the sun or the air, it turns brown and steam can also be used to distill it. To stop oxidation during its distillation, a tiny amount of zinc powder is added. Pharmaceuticals, resins, shoe blacks, photographic chemicals, varnish perfumes, herbicides, and fungicides are all made from Aniline Chemicals.