admium, derived from kadmia, the meaning of "soil", it is the chemical symbol of Cd, atomic number is 48. Cadmium is a blue and white transition metals, rare metals, one of the properties of softness, toxic, can be found in the zinc ore. Cadmium and zinc are used for battery materials. Cadmium nickel cadmium battery, used in production of plastic manufacturing and metal plating, paint, paint, dye, printing ink, etc. Some yellow pigment, in making tyres, some nuclear reactors for the electronic components and the original. Melting point is 320.9 ℃, boiling point 765 ℃, the density of 8650 kg/m3. With toughness and ductility. Cadmium in wet air oxidation and slow loss of metallic luster, heating surface brown oxide layer. High temperature response to cadmium and halogen halide cadmium.
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