[structure or molecular formula]
Co
[density] 8.9
[melting point (°C)] 1490
[Boiling point (°C)] 3520
ã€Properties】
Silver-gray metal. Hard and malleable.
ã€Solubility】
It can be gradually dissolved in dilute hydrochloric acid and sulfuric acid, and easily soluble in nitric acid.
ã€use】
Used in the manufacture of superhard heat resistant alloys and magnetic alloys, cobalt compounds, catalysts, electric filaments and porcelain glazes. Cobalt 60 is used for internal detection of objects, medical and tracers.
[preparation or source]
The main cobalt deposits in nature are arsenic- cobalt ore and arsenic-cobalt. By Hui cobaltite arsenic or arsenic cobalt ore into reduced with aluminum oxide obtained after the burning.
ã€other】
The atomic number is 27, the atomic weight is 58.9332, and the valence is +2 and +3. It does not work with water and air at room temperature.Suede Fabric Film,Leather Vinyl,Wooden Film,Car Interior Wrap
Guangzhou Fuyulai Technology Co.,Ltd , https://www.fuyulaifilm.com