Aluminium(II) oxide

Unusual compound of aluminium in its rare oxidation state II From Wikipedia, the free encyclopedia

Aluminium(II) oxide or aluminium monoxide is a compound of aluminium and oxygen with the chemical formula AlO. It has been detected in the gas phase after explosion of aluminized grenades in the upper atmosphere[1][2][3] and in stellar absorption spectra.[4]

Quick facts Names, Identifiers ...
Aluminium(II) oxide
Names
IUPAC name
Aluminium(II) oxide
Systematic IUPAC name
Oxoalumanyl radical
Other names
Aluminium monoxide
Oxidoaluminium
Oxoaluminum
Aluminious oxide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
349
  • InChI=1S/Al.O checkY
    Key: AIRCTMFFNKZQPN-UHFFFAOYSA-N checkY
  • InChI=1/Al.O/rAlO/c1-2
    Key: AIRCTMFFNKZQPN-IPBSAJSUAY
  • O=[Al]
Properties
AlO
Molar mass 42.98 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
X markN verify (what is checkYX markN ?)
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Aluminium(II) oxide is one of the aluminium oxides (the most common is aluminium oxide Al2O3) and a rare example of an aluminium(II) compound since aluminium usually exists in its +3 oxidation state.

Reactions

Aluminium monoxide is an unstable compound, due to it easily reacting with oxygen to become aluminium(III) oxide:[5]

4AlO + O
2 → 2Al
2O
3

See also

References

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