... OxideMF: CuOEINECS No.: 215-270-7Place of Origin: Tianjin China (Mainland)Grade Standard: Agriculture Grade, Industrial G...Purity: 89%,98%, 99%Appearance ... acid insoluble substance ≤ ,%0.050.20Cl , % ≤0.020.20SO 4 , % ≤0.050.20water-insoluble , % ≤0.010.10Residue on sieve (150um ) ≤ ,% 0.10Residue on sieve (300um ...