ozn

OZn is not a standard chemical formula in inorganic chemistry. In most contexts the compound zinc oxide is written ZnO. Some informal uses may write OZn by reversing the order of the elements, but this does not imply a different substance. As a result, articles about OZn typically describe zinc oxide and note the nonstandard notation.

Zinc oxide (ZnO) is a binary oxide of zinc. It occurs as a white to gray-white powder, is insoluble in water, and has a wurtzite crystal structure. It is an amphoteric oxide, reacting with both acids and bases.

Industrial production includes high-temperature oxidation of zinc metal and precipitation from zinc salts followed by heating. Nanoscale ZnO can be synthesized by various methods such as sol-gel, hydrothermal, and vapor-phase processes to yield different morphologies (nanorods, nanowires, nanoparticles).

Applications are broad: as a UV absorber in sunscreens and cosmetics; in rubber and ceramics; as a white pigment (zinc oxide pigment); in electronics and optoelectronics as a semiconductor; in sensors and photocatalysis. Safety: relatively low toxicity but fine ZnO powders can pose inhalation risks; standard industrial hygiene practices are advised.