<unk>  is a chemical compound with the formula<unk> . It is nearly insoluble in water but soluble in acids and 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<unk>  exhibits the piezoelectric effect and is thermochromic (it will change colour from white to yellow when heated, and back again when cooled down).<unk>  decomposes into zinc vapor and oxygen at around 1975 °C. High-quality single-crystalline<unk>  is almost transparent.<unk>  occurs in nature as the mineral zincite.
Zinc oxide
Zinc acetate
Zinc chloride
Zinc sulfide
Zinc sulfate
Zinc pyrithione
Potassium hydroxide
Aluminium hydroxide