What is the use of cobalt?

1, cobalt-based alloy or cobalt-containing alloy steel is used as parts of gas turbine blades, impellers, ducts, jet engines, rocket engines and missiles, various high-load heat-resistant parts in chemical equipment, and important metal materials in atomic energy industry.

2. As a binder in powder metallurgy, cobalt can ensure the toughness of cemented carbide. Magnetic alloy is an indispensable material in modern electronics and electromechanical industry, which is used to manufacture various components of acoustic, optical, electrical and magnetic equipment.

3. Cobalt is also an important part of permanent magnet alloy. In chemical industry, cobalt is not only used in super alloys and anticorrosion alloys, but also used in colored glass, pigments, enamels, catalysts and desiccants.

Extended data:

1 and the physical properties of cobalt

Cobalt is a shiny steel gray metal with melting point 1493℃ and specific gravity of 8.9. Cobalt is ferromagnetic and similar to iron and nickel in hardness, tensile strength, machinability, thermodynamic properties and electrochemical behavior. When heated to 1 150℃, the magnetism disappears.

2. Chemical properties of cobalt

The valence of cobalt is 2 and 3. It does not interact with water at room temperature and is stable in humid air. When heated to above 300℃ in air, it is oxidized to produce CoO and burned to produce Co? o？ . Micro-cobalt powder prepared by hydrogen reduction method can spontaneously ignite in air to produce cobalt oxide.

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