alumiinidioksidia
Alumiinidioksidi is the Finnish term for aluminum oxide. It is a chemical compound with the formula Al2O3. Aluminum oxide is an amphoteric oxide, meaning it can react with both acids and bases. It is a white, crystalline solid that is insoluble in water. Naturally occurring aluminum oxide is found in the minerals corundum, ruby, and sapphire. Synthetic aluminum oxide is produced industrially through the Bayer process.
Aluminum oxide is a very hard and durable material, making it useful in a variety of applications.