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Aluminium oxide

IUPAC: dialuminum;tris(oxygen(2-))

Al2O3 Inorganic Compounds CAS 1344-28-1
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Quick Reference
Formula / NotationAl2O3
CAS Number1344-28-1
Molecular Weight101.961
Melting Point3632 °F (NIOSH, 2024)
Boiling Point5396 °F at 760 mmHg (NIOSH, 2024)
Density4 (NIOSH, 2024) - Denser than water; will sink
SolubilityInsoluble (NIOSH, 2024)
AppearanceAluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystal...
Also Known Asdialuminum;tris(oxygen(2-)); ALUMINUM OXIDE; 1344-28-1; Aloxite; gamma-Alumina; Aluminum trioxide; Dialuminum trioxide; Abramant; Abramax; Abrasit
CategoryInorganic Compounds

What is Aluminium oxide?

Aluminium oxide (Al2O3) is an inorganic compound that appears as Aluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystal.... It has a molecular weight of 101.961 g/mol. Its IUPAC name is dialuminum;tris(oxygen(2-)). Boiling point: 5396 °F at 760 mmHg (NIOSH, 2024). Melting point: 3632 °F (NIOSH, 2024).

Formula & Notation

Al2O3

IUPAC Name: dialuminum;tris(oxygen(2-))

Other Names / Synonyms: dialuminum;tris(oxygen(2-)); ALUMINUM OXIDE; 1344-28-1; Aloxite; gamma-Alumina; Aluminum trioxide; Dialuminum trioxide; Abramant; Abramax; Abrasit

Properties & Characteristics

Appearance: Aluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystal.... Molecular formula: Al2O3. Molecular weight: 101.961 g/mol. Boiling point: 5396 °F at 760 mmHg (NIOSH, 2024). Melting point: 3632 °F (NIOSH, 2024). Density: 4 (NIOSH, 2024) - Denser than water; will sink. Solubility: Insoluble (NIOSH, 2024). Vapor pressure: 0 mmHg (approx) (NIOSH, 2024).

Physical Data

PropertyValue
Melting Point3632 °F (NIOSH, 2024)
Boiling Point5396 °F at 760 mmHg (NIOSH, 2024)
Density4 (NIOSH, 2024) - Denser than water; will sink
Molecular Weight101.961
SolubilityInsoluble (NIOSH, 2024)
AppearanceAluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystal...

Uses & Applications

Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.

Safety Information

May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Aluminium oxide
Formula Al2O3
CAS Number 1344-28-1
Molecular Weight 101.961
Synonyms dialuminum;tris(oxygen(2-)); ALUMINUM OXIDE; 1344-28-1; Aloxite; gamma-Alumina; Aluminum trioxide; Dialuminum trioxide; Abramant; Abramax; Abrasit

Frequently Asked Questions

Aluminium oxide (Al2O3) is an inorganic compound that appears as Aluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystal.... It has a molecular weight of 101.961 g/mol. Its IUPAC name is dialuminum;tris(oxygen(2-)). Boiling point: 5396 °F at 760 mmHg (NIOSH, 2024). Melting point: 3632 °F (NIOSH, 2024).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.