Zincum oxydatum, also called Zinc oxide is an inorganic compound with the formula ZnO.
Zincum oxydatum (ZnO) is a white powder that is insoluble in water, and it is widely used as an additive in numerous materials and products including rubbers, plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes. It occurs naturally as the mineral zincite, but most zinc oxide is produced synthetically.
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Source: Wikipedia, https://en.wikipedia.org/wiki/Zinc_oxide