Al2O3 + 6 HNO3 → 2 Al(NO3)3 + 3 H2O – Balanced equation

Or you want a quick look:

This is an acid-base reaction (neutralization): Al2O3 is a base, HNO3 is an acid.


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  • Al2O3
    • Names: Aluminium oxide (Aluminum oxide) , Aluminum oxide , Aluminium oxide
    • Appearance: White solid ; White powder ; White, odorless, crystalline powder.
  • HNO3Nitric acid
    • Other names: Aqua fortis , Spirit of niter , Eau forte
    • Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]


  • Al(NO3)3Aluminium nitrate
    • Other names: Nitric Aluminum salt , Aluminum nitrate , Aluminium(III) nitrate
    • Appearance: White crystals, solid | hygroscopic
  • H2OWater, oxidane
    • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
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