Cobalt

Property Specification
Symbol Co
Atomic Number 27
Density 8.90 g/cm³
Melting Point 1,495°C (2,723°F)
Boiling Point 2,927°C (5,301°F)
Color Silvery-white, with a slight bluish tint
Hardness 5 on the Mohs scale
Crystal Structure Hexagonal close-packed (HCP)
Electrical Conductivity Moderate conductor of electricity
Thermal Conductivity 100 W/m·K
Refractive Index 1.56
Solubility Insoluble in water, reacts with acids like hydrochloric acid
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