||Cobalt compounds have been used for centuries to provide a rich blue color in ceramics, glazes and glass. Cobalt was first isolated in 1735 by a Swedish chemist named Georg Brandt.
||The substance is used in corrosion and wear resistant alloys, high speed steels, superalloys, diamond tools and hard metals.
||Cobalt has been used as a paint and pigment for centuries, as early as the third millenium BC.
||Cobalt is used in magnets and magnetic recording media. Cobalt is used in Alnico alloys which make a strong permanent magnet. It is also used in Samarium-cobalt magnets, which are very strong but can be brittle.
||Cobalt's appearance, resistance to oxidation and hardness make it a good candidate for electroplating.