Shijiazhuang Randa Technology Co., Ltd.

CAS 1314-13-2
Zinc oxide is an oxide of zinc, insoluble in water, soluble in acids and strong bases, and is a commonly used chemical additive.

It is widely used in the production of plastics, silicate products, synthetic rubber, lubricating oils, paints and coatings, ointments, adhesives, food, batteries, flame retardants and other products. Zinc oxide has large energy band gap and exciton binding energy, high transparency, and excellent luminous performance at room temperature, and is used in liquid crystal displays, thin-film transistors, light-emitting diodes and other products in the semiconductor field. In addition, microparticle zinc oxide as a nanomaterial has also begun to play a role in related fields.
Physical
zinc oxide
zinc oxide
Appearance and properties: white powder or hexagonal crystals. Odorless, tasteless, sand-free. It turns yellow when heated, and then turns white again when cooled, and sublimates when heated to 1800°C. The hiding power is half that of titanium dioxide and zinc sulfide. The tinting strength is 2 times that of basic lead carbonate.

Solubility: soluble in acid, concentrated hydroxide alkali, ammonia and ammonium salt solution, insoluble in water, ethanol.
Chemical properties
Zinc oxide is a well-known white pigment, commonly known as zinc white. It has the advantage that it does not turn black when encountering H2S gas, because ZnS is also white. When heated, ZnO gradually changes from white and light yellow to lemon yellow, and when it cools, the yellow color will fade, and this characteristic is used to mix it into paint or add it to a thermometer to make a color-changing paint or color-changing thermometer. Because ZnO has astringent and certain bactericidal ability, it is often used as an ointment in medicine, and ZnO can also be used as a catalyst.