Copper Oxide Flake
Product Details
|
NO. |
Item |
Technical index |
|
|
1 |
CuO |
Cu% |
85-87 |
|
2 |
O% |
12-14 |
|
|
3 |
Hydrochloric acid insoluble % |
≤ 0.05 |
|
|
4 |
Chloride (Cl) % |
≤ 0.005 |
|
|
5 |
Sulfate (count based on SO42-) % |
≤ 0.01 |
|
|
6 |
Iron (Fe) % |
≤ 0.01 |
|
|
7 |
Total Nitrogen % |
≤ 0.005 |
|
|
8 |
Water Soluble Objects % |
≤ 0.01 |
|
Packing and Shipment
FOB Port:Shanghai Port
Packing Size: 100*100*80cm/pallet
Units per pallet: 40 bags/pallet; 25kg/bag
Gross weight per pallet: 1016kg
Net weight per pallet: 1000kg
Lead time:15-30 days
Customized packaging(Min. Order: 3000 Kilograms)
Samples: 500g
20GP:Load 20tons
Product Description
Properties of copper oxide
Melting point/freezing point ：1326°C
Density and/or relative density：6.315
storage condition：no restrictions.
Physical state ：powder
Color：Brown to black
Particle characteristics : 30mesh to 80mesh
Chemical stability :Stable.
Incompatible materials :Avoid contact with strong reducing agents, aluminum, alkali metals, etc.
Proper Shipping Name
ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Copper oxide)
Class/Division :Class 9 Miscellaneous Dangerous Substances and Articles
Package Group :PG III
PH ：7(50g/l,H2O,20℃)(slurry)
Water soluble：insoluble
Stability：Stable. Incompatible with reducing agents, hydrogen sulfide, aluminium, alkali metals, finely powdered metals.
CAS：1317-38-0
Hazards Identification
1.GHS classification : Hazardous to the aquatic environment, acute hazard 1
Hazardous to the aquatic environment, long-term hazard 1
2.GHS Pictograms :
3.Signal words : Warning
4.Hazard statements : H400:Very toxic to aquatic life
H410:Very toxic to aquatic life with long lasting effects
5.Precautionary Statement Prevention : P273:Avoid release to the environment.
6.Precautionary Statement Response : P391:Collect spillage.
7.Precautionary Statement Storage : None.
8.Precautionary Statement Disposal : P501:Dispose of contents/container in according with local regulation.
9.Other hazards which do not result in classification : Not available
Handling and Storage
Handling
Information for safe handling : Avoid contact with skin, eyes, mucous membranes and clothing. In case of insufficient ventilation, wear suitable respiratory equipment. Avoid formation of dust and aerosols. Information about protection against explosions and fires : Keep away from heat, sources of ignition, sparks or open flame.
STORAGE
Requirements to be met by storerooms and containers :Keep in a cool, dry, well-ventilated place. Keep tightly closed until used. Information about storage in one common storage facility: Store away from incompatible substances such as Reducing agents, Hydrogen sulfide gas, Aluminum, Alkali metals, Powdered metals.
Personal Protection
Limit Values for Exposure
Component CAS number TLV ACGIH-TWA ACGIH TLV-STEL NIOSH PEL-TWA NIOSH PEL-STEL
Copper oxide 1317-38-0 0.2 mg/m3 N.E. 0.1 mg/m3 N.E
1.Appropriate engineering controls :Closed operation, local exhaust.
2.General protective and hygienic measures :Change work clothes in time and pay
attention to personal hygiene.
3.Personal protective equipment :Masks, goggles, overalls, gloves.
4.Breathing equipment :When workers are facing high concentrations they must use
appropriate certified respirators.
5.Protection of hands :Wear appropriate chemical resistant gloves.
Eye/Face protection :Use safety glasses with side shields or safety goggles as mechanical barrier for prolonged exposure.
6.Body protection : Use clean protective body-covering as needed to minimize
contact with clothing and skin.
Physical and Chemical Properties
1.Physical state Powder
2.Colour: Black
3.Odour: No data available
4.Melting point/freezing point :1326 ℃
5.Boiling point or initial boiling point and boiling range :No data available
6.Flammability: Nonflammable
7.Lower and upper explosion limit/ flammability limit :No data available
8.Solubility :Insoluble in water, soluble in dilute acid, incompatible with ethanol
9.Density and/or relative density :6.32 (powder)
10.Particle characteristics :650 mesh
Production method
Copper powder oxidation method. Reaction equation:
4Cu+O2→2Cu2O
2Cu2O+2O2→4CuO
CuO+H2SO4→CuSO4+H2O
CuSO4+Fe→FeSO4+Cu↓
2Cu+O2→ 2CuO
Operation method:
Copper powder oxidation method takes copper ash and copper slag as raw materials, which are roasted and heated with gas for preliminary oxidation to remove water and organic impurities in raw materials.The generated primary oxide is cooled naturally, crushed and then subjected to secondary oxidation to obtain crude copper oxide.The crude copper oxide is added into the reactor pre loaded with 1:1 sulfuric acid. Reaction under heating and stirring until the relative density of the liquid is twice the original and the pH value is 2 ~ 3, which is the end point of the reaction and generates copper sulfate solution. After the solution is left to stand for clarification, add iron shavings under the condition of heating and stirring to replace copper, and then wash with hot water until there is no sulfate and iron. After centrifugation, drying, oxidizing and roasting at 450 ℃ for 8h, cooling, crushing to 100 mesh, and then oxidizing in an oxidation furnace to prepare copper oxide powder.