Tin oxide (SnO₂) is a versatile inorganic compound widely used across multiple industries. In ceramics and glass production, it acts as an opacifier to impart a white, opaque appearance and is a key ingredient in glazes and enamels, enhancing durability, scratch resistance, and thermal stability while preventing cracking.

In the electronics sector, tin oxide's semiconducting properties make it ideal for gas sensors detecting pollutants like carbon monoxide and flammable gases. Its transparency combined with electrical conductivity enables its use in transparent conductive coatings for windows, providing electrostatic shielding and defrosting capabilities. It also serves as a catalyst support in chemical reactions and in the manufacture of certain batteries.

Additionally, tin oxide is employed in polishing powders for glass and metals to achieve a high shine. As a UV absorber, it improves weather resistance in coatings, paints, inks, and plastics. In cosmetics, it provides pearlescent effects, smooth texture, and oil control in products like foundations, powders, and nail polishes.