Copper Oxide Purity:99%, Production following the state standards used in producing glass,ceramic,fire works, etc.

Copper Oxide

Item	Standard I	Standard II
CuO , % ≥	99	98
Muriatic acid insoluble substance ≤ ,%	0.05	0.20
Cl , % ≤	0.02	0.20
SO 4 , % ≤	0.05	0.20
water-insoluble , % ≤	0.01	0.10
Residue on sieve (150um ) ≤ ,%		0.10
Residue on sieve (300um ) ,≤ %	0.10

Copper Oxide