... :white powde or white pellet WEIFANG DONGFANGSHENG CHEMICAL INDUSTRY CO.,LTDCompany information:Weifang Dongfangsheng Chemical Industry Co.,Ltd. was established in 1995 ... 10000 M/TS. we are also manufacturing various kind of chemical products, such as, Zinc Carbonate, Zinc nitrate,Zinc dihydrogen phosphate ... %≤0.00050.001Zinc Corrosion testAcceptable--- zinc chloride 98.02% in chemical