Humans have been using compounds of cobalt since at least 1400 BC. We already know that it was used in paints, pottery and glassworks. Different kinds of compounds of cobalt are used as pigment in pottery, glass enamels and paints. This element forms an essential part of Vitamin B12 and is essential in small amounts for proper nutrition.
Cobalt is used to make super alloys. Super alloys are resistant to corrosion or rusting and retain their properties at high temperatures. They are used in jet engine parts and gas turbines. To make super alloys metals like iron, cobalt, or nickel are mixed with small amounts of other metals, such as chromium, tungsten, aluminium, and titanium.
Because of its defined magnetic properties, cobalt is used to make magnets. It is also used to make batteries; lithium cobalt oxide is used to make lithium-ion batteries. It is also used for electroplating because of its attractive appearance.
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