Cadmium, Physical and Chemical Properties
Cadmium is a metallic element in the second transition series, Group IIB (12).
General Cadmium Chemistry
Cadmium (Cd, atomic weight, 112.41; atomic number 48) is a nonabundant, toxic metallic element usually found associated with minerals such as ZnS and other zinc ores. One mineral form, greenockite (CdS), is significant, but the usual Cd source is the oxide in industrial slag associated with the refining of Zn or Pb. The industrial uses of Cd include anticorrosion coatings, nickel-cadmium rechargeable batteries, and in neutron moderating alloys. Cadmium sulfide is used as a bright yellow pigment, and all cadmium chalcogenides (CdS, CdSe, CdTe) are used in semiconductor, photonic, and nanoparticle materials and for research.