Periodic table with oxidation

• iron oxide
• iron(II) oxide

The oxidation number of iron in iron oxide is 2.

• Formula: FeO
• Hill system formula: Fe1O1
• CAS registry number: [1345-25-1]
• Formula weight: 71.844
• Class: oxide

• Colour: black
• Appearance: crystalline solid
• Melting point: 1370°C
• Boiling point: decomposes at 3414
• Density: 6000 kg m-3

Synthesis

Not available

Solid state structure

• Geometry of iron:
• Prototypical structure: NaCl (rock salt)

Element analysis

Isotope pattern for FeO

THe chart below shows the calculated isotope pattern for the formula FeO with the most intense ion set to 100%.

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References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

• R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
• N.N. Greenwood and A. Earnshaw in, 2nd edition, Butterworth, UK, 1997.
• F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in, John Wiley & Sons, 1999.
• A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
• R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
• A.R.West in, John Wiley & Sons, 1999.
• A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
• J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
• D.R. Lide, (ed.) in, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
• J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
• J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.