Cupric Oxide

Synonyms: Copper(II)oxide, copper monoxide, black copper oxide

Formula: CuO

CAS No.: 1317-38-0

MW.: 79.55


Black or brownish black amorphous crystalline powder, monoclinic crystal, Specific Wt.: 6.315 M.P.: 14460C, insoluble in water and ethanol, soluble in diluted acid, ammonia water, ammonium chloride, sodium hydroxide and potassuim cyanide.


Cupric oxide can be used as a pigment, as a fungicide, and as an anti-fouling agent for marine paint. Cupric oxide is also used as a catalyst. However, exposure to this type of copper oxide can be dangerous.


Stored in cool and dry warehouse; Keep away from flame and heat.

NO Item Specification
1 Assay(CuO) % ≥98.0 ≥97.0
2 Insol in Hcl % ≤0.2 ≤0.2
3 Chlorides(Cl)% ≤0.10 ≤0.10
4 Sulfur compound(SO4)% ≤0.10 ≤0.10
5 Water insoluble% ≤0.10 ≤0.10
6 Fineness(100-mesh sieve residue) % ≤2 ≤5


Packaging Sizes

25kg net. Double plastic bags lined plastic woven sack.