The word cobalt may date back to theend of the 15th century. In German, the word Kobold means "goblin" or "evil spirt."
The term was used by miners to describe a minereal to describe a mineral that was very difficult to mine and was damaging to their health. When the mineral was heated, it gave off an offensive gas that caused illness.
The gas that affected the miners was arsenic troxide (As4)6), which often occurs with cobalt in nature.
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It was discovered by a Swedish chemist named Georg Brandt in 1735
The element named after the Norse God of War is cobalt. It gets its name from the German word kobalt, which means goblin or evil spirit, as miners believed cobalt-containing ore was difficult to mine and caused them harm.
Cobalt is a metallic element, so it forms various compounds. Some common cobalt compounds include cobalt chloride, cobalt carbonate, cobalt sulfate, and cobalt oxide. These compounds have different uses in industry, such as in the production of pigments, batteries, and magnetic materials.
The empirical formula for Co(NO3)2 is Co(NO3)2. The compound is named cobalt(II) nitrate.
The chemical name is Cobalt(II) Fluoride Hexahydrate.