CompoundList
Molecular formula

Al2O3

2 compounds have this formula on CompoundList.

Molar mass
101.96g/mol
Monoisotopic mass
101.9478Da
Atoms
5
Elements
2

The formula Al2O3 describes a molecule made of 2 aluminium atoms and 3 oxygen atoms. It is written in Hill notation: with no carbon present, every element is listed in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • Al Aluminium × 252.93%
    26.982 × 2 = 53.964 g/mol
  • O Oxygen × 347.07%
    15.999 × 3 = 47.997 g/mol
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Compounds with the formula Al2O3

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 2 of 2 compounds

Frequently asked questions

What is the molar mass of Al2O3?

The molar mass of Al2O3 is 101.96 g/mol, calculated from standard atomic weights for 2 aluminium atoms and 3 oxygen atoms. The monoisotopic mass is 101.9478 Da.

How many compounds have the formula Al2O3?

CompoundList lists 2 compounds with the molecular formula Al2O3, including Alumina, Corundum. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.