Al2O3 (Aluminium Oxide)

Aluminum oxide (Al₂O₃), commonly called alumina, is a chemical compound made from aluminum and oxygen. It appears as a hard, white or transparent crystal and is highly resistant to heat and corrosion. Alumina is used in various applications, such as in abrasives for grinding, as a refractory material to line high-temperature furnaces, and in electronics due to its insulating properties. It naturally occurs in minerals like bauxite, which is the primary ore for aluminum production. Its combination of durability, stability, and insulating qualities makes it a vital material in industrial and technological uses.