Structure of Aluminum Oxide
Percentage composition by mass:
Oxygen: 47.1%
Aluminum: 52.9%
The bond between the aluminum and the oxide is an ionic bond. The structure of aluminum oxide is sometimes hexagonal (like in corundum).
Properties
Oxygen: 47.1%
Aluminum: 52.9%
The bond between the aluminum and the oxide is an ionic bond. The structure of aluminum oxide is sometimes hexagonal (like in corundum).
Properties
- Aluminum oxide is insoluble in water
- It reacts with acids as well as bases
- The hardness of aluminum oxide makes it useful as an abrasive
- It is also useful as an electrical insulator
- When aluminum oxide is used in metallic aluminum, it prevents the aluminum from weathering because it prevents the metal from further oxidation.