Back أكسيد الحديد الثنائي Arabic Dəmir (II) oksid Azerbaijani اوکسید دمیر (II) AZB Железен(II) оксид Bulgarian Òxid de ferro(II) Catalan Oxid železnatý Czech Eisen(II)-oxid German Οξείδιο του σιδήρου Greek Fera (II) oksido Esperanto Óxido de hierro(II) Spanish

Iron(II) oxide

Iron(II) oxide
Iron(II) oxide
Names
IUPAC name
Iron(II) oxide
Other names
Ferrous oxide,iron monoxide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.014.292 Edit this at Wikidata
13590
UNII
  • InChI=1S/Fe.O checkY
    Key: UQSXHKLRYXJYBZ-UHFFFAOYSA-N checkY
  • InChI=1/Fe.O/rFeO/c1-2
    Key: UQSXHKLRYXJYBZ-WPTVXXAFAB
  • [Fe]=O
Properties
FeO
Molar mass 71.844 g/mol
Appearance black crystals
Density 5.745 g/cm3
Melting point 1,377 °C (2,511 °F; 1,650 K)[1]
Boiling point 3,414 °C (6,177 °F; 3,687 K)
Insoluble
Solubility insoluble in alkali, alcohol
dissolves in acid
+7200·10−6 cm3/mol
2.23
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 can be combustible under specific conditions[2]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
200 °C (392 °F; 473 K)
Safety data sheet (SDS) ICSC 0793
Related compounds
Other anions
 Iron(II) sulfide
Iron(II) selenide
Iron(II) telluride
Other cations
 Manganese(II) oxide
Cobalt(II) oxide
Related Iron oxides
 Iron(II,III) oxide
Iron(III) oxide
Related compounds
 Iron(II) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iron(II) oxide or ferrous oxide is the inorganic compound with the formula FeO. Its mineral form is known as wüstite.[3][4] One of several iron oxides, it is a black-colored powder that is sometimes confused with rust, the latter of which consists of hydrated iron(III) oxide (ferric oxide). Iron(II) oxide also refers to a family of related non-stoichiometric compounds, which are typically iron deficient with compositions ranging from Fe0.84O to Fe0.95O.[5]

  1. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  2. ^ "Ferric(ous) Oxide, Black" (PDF). art.illinois.edu. Archived from the original (PDF) on 11 May 2019.
  3. ^ "Wüstite". www.mindat.org.
  4. ^ "List of Minerals". www.ima-mineralogy.org. March 21, 2011.
  5. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
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