Encyclopedia of Metalloproteins

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

Cadmium, Physical and Chemical Properties

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-1533-6_32

Synonyms

Definition

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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References

  1. Henkel G, Krebs B (2004) Metallothioneins: zinc, cadmium, mercury, and copper thiolates and selenolates mimicking protein active site features - structural aspects and biological implications. Chem Rev 104:801–824CrossRefPubMedGoogle Scholar
  2. Lide DR (ed) (2009) CRC handbook of chemistry and physics, 90th edn. The Chemical Rubber Co, Cleveland, OHGoogle Scholar
  3. Shannon RD (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst A32:751–767Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

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