A solution of bichromate of potassa intensifies the color ; but an excess of this salt is apt to impart a reddish hue. The best aniline for black is the one which contains a mixture of aniline and ...

The prize is named after Sir William Henry Perkin (1838-1907), most famous for inventing the first aniline dye, mauveine. He was 18 at the time of the discovery and achieved this in the garden shed of ...