Copper Powder
Atomized Copper, Electrolytic Copper Powder, Cu Powder.
- CAS
- 7440-50-8
- EC
- 231-159-6
- Sectors
- Electronics & Solar PV, Automotive, Aerospace & Defense
Copper Powder (CAS 7440-50-8) is a finely divided metallic solid, rust-brownish in color, supplied in spherical or dendritic morphologies for powder metallurgy, conductive pastes and sintered components, and it conducts electricity and heat efficiently enough to serve printed circuit boards, solar cells, brake pads and aerospace parts. It features high electrical conductivity and excellent thermal dissipation properties, making it a cornerstone of electronics and metallurgy.
This material is available in spherical or dendritic morphologies to optimize apparent density and pressing characteristics for powder metallurgy. Its high purity ensures minimal resistance in conductive pastes and high-strength performance in sintered components used in machinery.
In specialized sectors, fine-mesh grades are used as friction materials and chemical catalysts. The powder's ability to form stable alloys at high temperatures makes it indispensable for manufacturing high-reliability automotive parts and conductive coatings.
Typical Properties
| Molecular formula | Cu |
|---|---|
| Molecular weight | 63.55 g/mol |
| Form | wire |
| Color | Rust-brownish |
| Melting point | 1083 °C |
| Boiling point | 2595 °C |
| Density | 8.94 g/cm³ |
| Water solubility | insoluble |
| Flash point | -23 °C |
| pH | 3.2 (20°C in H2O) |
| GHS signal word | Danger · Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 74081900 |
| Grades available | Technical Grade, Electronic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Copper Powder
Applications
- Powder Metallurgy: Used to manufacture self-lubricating bearings, bushings, and complex sintered parts for the automotive and aerospace industries.
- Conductive Inks & Pastes: Applied in printed circuit boards (PCBs) and solar cells to provide efficient electrical pathways and heat management.
- Friction Materials: Incorporated into brake pads and clutch linings to enhance thermal conductivity and wear resistance under high-stress conditions.
Safety & Risks
Classified as a Flammable Solid in fine powder form and Hazardous to the Aquatic Environment. Utilize anti-static tools, safety goggles, and local exhaust ventilation to prevent dust explosions.
Packaging
25kg steel drums, 50kg vacuum-sealed pails, and 1000kg bulk bags.