Physical State: White or little yellow fine powder. Characteristics: The superfine active zinc oxide not only shows good activity, but also has very low impurity because the raw materials we chose are high grade roasted zinc oxide sand produced by ourselves. Applications: Reinforcement or activator for rubber and cable industries, Vulcanized agents for naturals rubber and chlornrene rubber ,ceramic, coating, desulphurization agents, medical industries and so on. Package: Plastics woven bag with plastics film and waterproof paper in inner layer. Specification: 25kg per bag in net weight. Quality standard: Meet HG/T2575-94 industrial active zinc oxide standard.