What is nickel?

Nickel is a slightly yellowish silver-white metal that is hard, easy to polish, magnetic (not as good as iron and cobalt) and has good plasticity. Density 8.902g/cm3, melting point 1453℃, boiling point 2732℃. Chemical properties are more active. It has good corrosion resistance, is difficult to oxidize in air at room temperature, does not react easily with concentrated nitric acid, and is resistant to alkali corrosion. Thin nickel wire is flammable, reacts with halogens when heated, and slowly dissolves in dilute acid. Can absorb a considerable amount of hydrogen.

It is mainly used to make various alloys composed of iron, copper, zinc and other metals, and is widely used in cutting-edge technology, high-temperature ceramic products, anti-corrosion alloys, chemical equipment, electronic and electrical equipment, special vessels, glass and other industries. Adding nickel to steel can improve the toughness and corrosion resistance of steel, such as nickel steel, chromium-nickel steel, etc.