Cobalt Metal
Co, Cobalt Powder, Cobalt Cathode.
- CAS
- 7440-48-4
- EC
- 231-158-0
- Sectors
- Home Care & Industrial Cleaning, Electronics & Solar PV, Aerospace & Defense
Cobalt Metal (CAS 7440-48-4) is a ferromagnetic metallic element supplied in wire form with a pink to red to violet appearance, used as a cathode material in lithium-ion batteries, a key ingredient in aerospace superalloys for jet engine turbines, and a binder in tungsten carbide cutting tools. It is critical for the stability and energy density of EV power cells . These alloys maintain exceptional tensile strength and corrosion resistance at extreme operating temperatures. The metal is also vital for manufacturing permanent magnets and heavy-duty cutting tools. Its high density and unique electronic properties make it a cornerstone of the clean energy transition.
Typical Properties
| Molecular formula | Co |
|---|---|
| Molecular weight | 58.93 g/mol |
| Form | wire |
| Color | Pink to red to violet |
| Melting point | 1495 °C |
| Boiling point | 2927 °C |
| Density | 9 x 10<sup>-6</sup> g/cm³ |
| Water solubility | insoluble |
| GHS signal word | Danger · Flammable, Acute toxicity, Irritant / harmful, Health hazard, Environmental hazard |
| Grades available | Technical 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.
Cobalt Metal
Applications
- Battery Cathodes: Integral to NMC and LCO chemistries for electric vehicle and consumer electronic batteries.
- Superalloys: Provides the heat and wear resistance required for aerospace engines and gas turbine blades.
- Hard Metals: Used as a binder in tungsten carbide tools for mining and high-precision machining.
Safety & Risks
May cause cancer and respiratory sensitization. Toxic to aquatic life. Mandatory dust masks (P3), safety glasses, and protective clothing in processing environments.
Packaging
250 kg steel drums; briquettes in bags; specialized vacuum-sealed containers for high-purity metal powder.