Aluminium oxides

Aluminium oxides or aluminum oxides are a group of inorganic compounds with formulas including aluminium (Al) and oxygen (O).

• Aluminium(I) oxide ({{chem2|Al2O}})
• Aluminium(II) oxide ({{chem2|AlO}}) (aluminium monoxide)
• Aluminium(III) oxide (aluminium oxide), ({{chem2|Al2O3}}), the most common form of aluminium oxide, occurring on the surface of aluminium and also in crystalline form as corundum, sapphire, and ruby.

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