Iron (I) oxide

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Surname Iron (I) oxide
other names

Diiron oxide

Ratio formula Fe 2 O
External identifiers / databases
CAS number 11089-07-9
Wikidata Q17122996
Molar mass 127.69 g mol −1
safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Iron (I) oxide (Fe 2 O) is a pressurized conditions, such as at the earth's surface , in the Earth's crust and in the mantle prevail, unstable iron - oxygen - compound . It therefore does not occur in nature that can be reached by humans. It is believed to be part of the Earth's core as well as the core of the other terrestrial planets in the solar system . Under the enormous pressure deep inside the planet, it should be made of iron (II) oxide ( wustite ) according to the reaction equation

arise because under these conditions it is the compound that is more stable towards iron (II) oxide.

This thesis was put forward in 1971 by the Russian geoscientist Oleg Sorochtin and subsequently further developed by the Australian seismologist Keith Edward Bullen .


  • John A. Jacobs: The Earth's Core. 2nd edition. International Geophysics Series. Vol. 37, Academic Press (London), 1987, ISBN 0-12-378951-6 .
  • O. G. Sorokhtin, G. V. Chilingarian, N. O. Sorokhtin: Evolution of Earth and its Climate: Birth, Life and Death of Earth. Developments in Earth and Environmental Sciences. Vol. 10, Elsevier, 2011, ISBN 978-0-444-53757-7 .

References and comments

  1. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  2. ^ A b John A. Jacobs: The Earth's Core. 1987 (see literature ), p. 314 ( limited preview in Google book search).
  3. Geoff Brown, Chris Hawkesworth, RCL Wilson: Understanding the Earth . CUP Archive, 1992, ISBN 0-521-42740-1 , pp. 47 ( limited preview in Google Book search).
  4. Sorokhtin (English transcribed Sorokhtin ) postulated first that FeO in the Earth's core, giving off oxygen to Fe 2 decomposes O, see OG Sorokhtin: Possible physicochemical processes Involved in the formation of the the Earth's core [ Возможные физико-химические процессы образования ядра Земли ] . Doklady Akademii Nauk SSSR. Vol. 198, No. 6, 1971, pp. 1327-1330.
  5. KE Bullen: Cores of the Terrestrial Planets. Nature. Vol. 243, 1973, pp. 68-70, doi : 10.1038 / 243068a0 .
  6. KE Bullen: On planetary cores. The moon. Vol. 7, No. 3-4, 1973, pp. 384-395, doi : 10.1007 / BF00564642 .