HomeCupric salts
Cupric Oxide
Product name: Cupric Oxide
CAS No.: 1317-38-0
Molecular Formula:
CuO
Molecular Weight: 79.55
Characters: 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.
Specifications:
| Cupric Oxide | A.P. | C.P. | Technical first grade | Technical second grade |
| Item | Spec. | Spec. | Spec. | Spec. |
| Assay(CuO) % | ≥99.0 | ≥98.0 | ≥98.0 | ≥97.0 |
| Insol. in Hcl % | ≤0.02 | ≤0.05 | ≤0.2 | ≤0.2 |
| Chlorides(Cl)% | ≤0.003 | ≤0.005 | ≤0.10 | ≤0.10 |
| Sulfur compound(SO4)% | ≤0.01 | ≤0.05 | ≤0.10 | ≤0.10 |
| Nitrogen compound(N) % | ≤0.002 | ≤0.005 | -- | -- |
| Carbon compound | ≤0.025 | ≤0.10 | -- | -- |
| Fe% | ≤0.01 | ≤0.04 | -- | -- |
| Cuprous oxide(Cu2O)% | ≤0.05 | ≤0.10 | -- | -- |
| Non-precipitate in sulfureted hydrogen % | ≤0.2 | ≤0.5 | -- | -- |
| Water insoluble% | -- | -- | ≤0.10 | ≤0.10 |
| Fineness(100-mesh sieve residue) % | -- | -- | ≤2 | ≤5 |
| Cupric Oxide | Export AR grade | Electro-plating Cupric Oxide | Electronic grade | Air bag grade |
| Item | Spec. | Spec. | Spec. | Spec. |
| Assay(CuO) % | ≥98.0 | ≥98.5 | ≥98 | ≥98 |
| Insol. in Hcl % | ≤0.02 | ≤0.01 | ≤0.10 | ≤0.2 |
| Chlorides(Cl) % | ≤0.005 | ≤0.06 | ≤0.08 | Moisture≤0.3 |
| Sulfur compound(SO4)% | ≤0.02 | ≤0.01 | ≤0.08 | PH5.5-7.5 |
| Zn% | -- | ≤0.02 | -- | -- |
| Pb% | ≤0.02 | ≤0.01 | ≤0.010 | -- |
| Fe% | ≤0.05 | ≤0.05 | -- | -- |
| Cd% | -- | -- | ≤0.0005 | -- |
| Hg% | -- | -- | ≤0.0002 | -- |
| C% | ≤0.05 | -- | -- | -- |
| N% | ≤0.005 | -- | -- | -- |
| As% | ≤0.0002 | -- | -- | -- |
| Ca% | ≤0.02 | -- | -- | -- |
| Cuprous oxide(Cu2O)% | ≤0.05 | -- | -- | ≤0.2 |
| K% | ≤0.02 | -- | -- | -- |
| Na% | ≤0.02 | -- | -- | -- |
| Sexavalence Cr % | -- | -- | ≤0.0002 | -- |
| Water insoluble% | ≤0.05 | ≤0.10 | ≤0.10 | D501.5 |
| Fineness(125-mesh sieve residue) % | -- | ≤0.1 | 325-mesh sieve residue≤0.3 | 100 meshes ≤2 |
Product Usage: It is used for firework, bactericides, glass, artificial rain materials, ceramics, catalyst, rayon etc.
Packaging: In 25Kg/woven bag lined with double-layer plastic bag or iron drum, closed tightly.
Storage Precautions: stored in dry and draughty warehouse, prevent dampness; isolated from strong acids or food; fight fire with water.
