Cobalt Properties, Molecular Formula, Applications - WorldOfChemicals

Cobalt Properties

Cobalt

Description

 

Cobalt is found naturally only in chemically combined form. It is used in the preparation of magnetic, wear-resistant and high-strength alloys. Cobalt silicate and cobalt(II) aluminate give a distinctive deep blue color to glass, smalt, ceramics, inks, paints and varnishes. Lithium cobalt oxide is widely used in lithium ion battery cathodes. Several cobalt compounds are used in chemical reactions as oxidation catalysts. Other uses of cobalt are in electroplating, owing to its attractive appearance, hardness and resistance to oxidation, and as ground coats for porcelain enamels.

Chemical Properties

Appearance Silver-grey Solid
Atomic Number 27
Atomic Weight 58.933 g/mol
Block d
Boiling Point 2927 °C
CAS Number 7440-48-4
Class 4.1
Crystal Structure Hexagonal
Density 8.9 g/cm3
EINECS Number 231-158-0
Electron Configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d7
Group 9
Ionization Energy 760.4 KJ/mol
Melting Point 1495 °C
NFPA 704 H-2,F-1,R-0,C-NA
Oxidation State 5,4,3,2,1,-1
PG 3
Period 4
RTECS Number GF8750000
Symbol Co
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