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Specialty Chemicals

►Zinc dispersions are used as ingredients in the vulcanizing of rubber.
►Zinc salts are used in the production of plastics.
►Zinc borate and zinc chlorides are used in flame-retardants.
►Zinc diacrylate is a key ingredient in the manufacturing of golf balls.
►Anti-corrosion materials such as zinc chromate and anti-wear additives such as zinc dithiophosphates for the lubricant industry are manufactured using zinc oxide.
►Zinc oxide can be dissolved in phosphoric acid for use in the coating and metal priming industry and in sulfuric acid for electroplating.

Standard: GB/T3185-92
 Item Index
 Model Top garde First grade Qualified product
 Zinc oxide(as Zno)%,≥ 99.7 99.5 99.4
 Metals (as Zn)%,≤ No No 0.008
 Lead oxide（as Pb）%,≤ 0.037 0.05 0.14
 manganese（as Mn）%,≤ 0.0001 0.0001 0.0003
 Copper oxide（as Cu）%,≤ 0.0002 0.0004 0.0007
 Insoluble matter in HCI%,≤ 0.006 0.008 0.05
 Loss on ignition%≤ 0.2 0.2 0.2
 Residue on sieve（45um）%,≤ 0.10 0.15 0.20
 Water soluble matter%,≤ 0.10 0.10 0.15
 Volatile matter on 105℃%,≤ 0.3 0.4 0.5

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