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Cadmium (48Cd112.411)
[7440-43-9]

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Elemental Form

A bluish-white metal, cadmium is soft, malleable and tarnishes in moist air. It is similar to zinc in many respects. Cadmium lowers the melting point of certain alloys and is used in bearing alloys to lower the coefficient of friction and improve resistance to fatigue. Cadmium is typically produced as a by-product in the treatment of zinc, copper, and lead ores.
Melting Point321.1°CBoiling Point765°C
Density8.65g/cm3Themal Conductivity0.22cal/cm2/cm/s/°C
Specific Heat @ 20°C0.055cal/g°CLatent Heat of Fusion13.2cal/g
Latent Heat of Vaporization286.4cal/gAtomic Volume13.1W/D
First Ionization Energy207K-cal/g-moleElectronegativity1.7Pauling's
Covalent Radius1.48AngstromsMohs Hardness @ 20°C2.0
Linear Coefficient of Expansion29.8x10-6K-1Electrical Resistivity @ 20°C6.83µΩ-cm
Crystal StructureHexagonalVapor Pressure @ 484°C10mmHg
Thermal Neutron Cross Section2450barns/atom