... advanced calcination method, it is white powder, stable in room Zinc oxide ZnO99.7% min45 um sieve residue0.1%maxMnO0.0001%maxPbO0 ... .2% maxHCl Insoluble Matter0.006%maxWater Soluble Matter0.1%maxZinc Oxide is added into various materials and products, including plastics, ceramics ... , ointments, adhesive, sealants, pigments, foods, batteries, ferrites, fire retardants, etc. Zinc oxide