PERIODIC TABLE

Cobalt

Atomic No. 27 Co Cobalt

About Cobalt

Cobalt is a transition metal with atomic number 27 that commonly occurs in the +2 and +3 oxidation states. Its compounds are used extensively in lithium ion battery cathodes, catalysts, magnetic materials, pigments, superalloys, and specialty ceramics. Cobalt also forms a wide range of oxides, sulfides, phosphates, and mixed metal compounds whose electronic, magnetic, and electrochemical properties make them important in advanced materials applications.

Properties

Atomic Number
27
Atomic Symbol
Co
Atomic Mass
58.9332
CAS No.
7440-48-4
Density
8.9 g/cm³
Series
transition metal
Melting Point
1,495°C
Boiling Point
2,927°C
Thermal Conductivity
1 W/cm °C
Heat of Fusion
16.2 kJ/mol
Heat of Vaporization
375 kJ/mol
Electronegativity
1.88 pauling
Crystal Structure
Hexagonal
Electrical Conductivity
1.7×107 S/m

Cobalt Products

Browse Lorad materials associated with Cobalt and refine the list by chemistry, application, or availability.

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