Cupric Oxide
Synonyms: Copper(II)oxide, copper monoxide, black copper oxide
Formula: CuO
CAS No.: 1317-38-0
MW.: 79.55
Feature
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.
Appearance
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.
Storage
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.