性av无码天堂vr专区丨台湾综合色丨97在线观看免费视频丨69午夜丨欧美日韩制服在线丨黑人一级丨黄色不打码视频丨日韩一级成人丨国产成人综合久久丨久草成人在线丨亚洲美女在线观看丨色91av丨亚洲综合在线另类色区奇米丨青青青青久久精品国产丨亚洲精品视频91

Telephone:+(86)-(411)-87260188

 
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