Encyclopedia of Astrobiology

2015 Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James (Jim) CleavesII, Daniele L. Pinti, José Cernicharo Quintanilla, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso


  • Concepción Alonso
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44185-5_1358


Reduction can be defined in different terms: as a gain of electrons or hydrogen or the loss of oxygen by an atom or a molecule.


Reduction in Terms of Electron Transfer

Reduction is the gain of electrons.

For example, in the reaction between iron and copper sulfate solution,
$$ \mathrm{F}\mathrm{e}+{\mathrm{CuSO}}_4\to \mathrm{C}\mathrm{u}+{\mathrm{FeSO}}_4 $$


Electron acceptor Oxidative Oxidizing agent 
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References and Further Reading

  1. Encyclopedia Britannica (1992) Macropedia vol 15, pp 1059. Micropedia vol 9 pp 31. 15th edn. ISBN 0-85229-553-7Google Scholar
  2. Gold V (1997) In: McNaught AD, Wilkinson A (eds) The compendium of chemical terminology published by the international union of pure and applied chemistry (IUPAC), 2nd edn. Blackwell Science, Oxford, ISBN 0-86542-684-8Google Scholar
  3. Hudlický M (1996) Reductions in organic chemistry. American Chemical Society, Washington, DC, p 429. ISBN 0-8412-3344-6Google Scholar
  4. Schüring J, Schulz HD, Fischer WR, Böttcher J, Duijnisveld WH (eds) (1999) Redox: fundamentals, processes and applications. Springer, Heidelberg, p 246. ISBN 978-3540665281Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Universidad Autonoma de MadridMadridSpain