Manganese

History
 
Karl Wilhelm Scheele discovered manganese in 1774. Although he was unable to obtain the metal in its pure form, he said, in which metals it contains. The first mineral, which was used, which contain manganese, was pirolyuzit. It is still used for lightening the glass. The metal manganese was received by Johan  Gottlieb Hahn.

Nowadays

An important use of manganese received as alloying additives to the melting of steel, where it perfectly removes sulfur. It also specifically make manganese steel. Manganese is an element necessary for plant life and humans. It contains nearly all foods. An intravenous magnesium chloride injection can save from the bite of karakurt.