Encyclopedia of Metalloproteins

2013 Edition
| Editors: Robert H. Kretsinger, Vladimir N. Uversky, Eugene A. Permyakov

Cadmium, Physical and Chemical Properties

  • J. David Van Horn
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-1533-6_32



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.

Cd is in the “zinc group” of the periodic table and exhibits the common +2 oxidation state of this group arising from the loss of two s-orbital electrons; specifically, Cd(II) has the stable [Kr] 3 d 10electronic...
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of ChemistryUniversity of Missouri-Kansas CityKansas CityUSA