An amorphous white or yellowish powder, ZnO, used as a pigment, in compounding rubber, in the manufacture of plastics, and in pharmaceuticals and cosmetics. Also called Chinese white, zinc white

Zinc oxide is a chemical compound with formula ZnO. It is nearly insoluble in water but soluble in acids or alkalis. It occurs as white hexagonal crystals or a white powder commonly known as zinc white.

It remains white when exposed to hydrogen sulfide or ultraviolet light. Crystalline zinc oxide exhibits the piezoelectric effect and is thermochromic.