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Cobalt Co Powder CAS 7440-48-4

Item No.: Tr-Co
Cobalt powder is also known as fine cobalt powder, superfine cobalt powder. Molecular formula: Co. It is gray irregular powder, soluble in acid, magnetic, and easily oxidized in moist air.
Particle size: 20-80nm
Cobalt Powder Properties

About Cobalt Co Powder:
Cobalt powder, also known as fine cobalt powder or ultra-fine cobalt powder, is a metal powder with unique physical and chemical properties. Its molecular formula is Co, which has a gray, irregular powder form. Among the physical properties of cobalt powder, the most significant is its magnetism. Cobalt is a ferromagnetic metal; its powder form also has this property. This magnetism makes cobalt powder important in manufacturing highly magnetic materials and magnetic recording media. The chemical properties of cobalt powder are also remarkable. It is an extremely reactive metal that reacts with many chemicals, including acids, bases, and some oxidants. When using cobalt powder, attention must be paid to its toxicity. Cobalt and its components can enter the body via the skin or digestive tract and through the respiratory tract and cause adverse health effects. Therefore, relevant operating procedures and safety measures should be followed to avoid unnecessary contact and inhalation.
Cobalt Co Powder CAS 7440-48-4 Features:

Cobalt powder nanoparticle is a kind of spherical metal nanoparticle produced through laser evaporation. Cobalt powder is not an abundant element but is widely diffused in rocks, sea and mineral waters, coal, meteorites, the sun and stellar atmospheres, soils, plants and animals.


Cobalt powder Specification:





Bulk Density



Cobalt nanoparticle







Applications of Cobalt Co Powder:

With its unique physical and chemical properties, cobalt powder is extensively utilized in many fields. Some of the main application areas of cobalt powder are described in detail below. 

Magnetic materials: Because cobalt is ferromagnetic, cobalt powder is often used to make magnetic materials. Cobalt powder is important in manufacturing high-magnetic materials and magnetic recording media. For example, alloying cobalt powder with other metals can create alloys with specific magnetic properties that can be used to make magnets, magnetic recording media, and so on. 

Catalyst: Cobalt powder is a highly efficient catalyst used in many chemical reactions. For example, in the petroleum industry, cobalt catalysts produce high-octane gasoline. In the synthetic ammonia industry, cobalt catalysts are used to increase the yield of ammonia. In addition, cobalt powder can also be used in hydrogenation reactions, oxidation reactions, and many other chemical reactions. 

Batteries: Cobalt powder also has important applications in battery manufacturing. For example, cobalt is part of the cathode material in lithium-ion batteries. Because cobalt can improve the energy density and stability of batteries, cobalt has an irreplaceable role in battery manufacturing. However, due to cobalt's high price and toxicity, its application in battery manufacturing is also limited to a certain extent. 

Tungsten carbide: Cobalt powder also plays an important role in the manufacture of tungsten carbide. Cemented carbide is an alloy made of cobalt and carbide with high hardness, excellent wear resistance, and superior corrosion resistance properties. It is extensively used in production for cutting and measuring instruments, wear parts, etc. Cobalt powder must be mixed with other metal powders and sintered at high temperatures to manufacture cemented carbide. 

Coatings and coatings: Cobalt powder can be used as an additive in coatings and coatings to improve their hardness and wear resistance. For example, when making cemented carbide cutting tools, a layer of cobalt powder can be coated on its surface to improve its service life. Cobalt powder can be added to improve the coating's hardness, wear resistance, and corrosion resistance in the manufacture of decorative coatings. 

Aerospace field: Because cobalt has high density and good strength and toughness, cobalt powder also has important applications in the aerospace field. For example, cobalt powder can manufacture aircraft engine parts and spacecraft structural parts. Because cobalt has good processing and high-temperature properties, it is also one of the important aviation materials. 

Functional materials: Cobalt powder can also be used as functional materials, such as thermoelectric materials, magneto-optical materials, superconducting materials, etc. For example, adding cobalt can improve the material's thermoelectric properties in thermoelectric materials. In magneto-optical materials, adding cobalt can change the optical properties of the materials. The superconducting properties of superconducting materials can be improved by adding cobalt.

Cobalt Co Powder Cautions: 
1. Cobalt powder has flammable hazards, so it should be gently placed and to avoid violent vibration and friction. 

2. Metal nano cobalt powder should be prevented from moisture, heat, impact and sunlight.

3 . The user must be a professional (This person must know how to use this product.)

Storage Condition of Cobalt Co Powder:
The damp reunion will affect Co powder dispersion performance and using effects, therefore, Cobalt Co Powder should be sealed in vacuum packing and stored in cool and dry room, the Cobalt Co Powder can not be exposure to air. In addition, the Co powder should be avoided under stress.

Packing & Shipping of Cobalt Co Powder:
We have many different kinds of packing which depend on the Cobalt Co powder quantity.
Cobalt Co powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Cobalt Co powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality cobalt powder, please feel free to contact us and send an inquiry. ([email protected])

Cobalt Powder Properties

Other Names cobalt nanopowder, cobalt nano-particles,
cobalt nano-powder, nanocobalt, nano-cobalt
CAS No. 7440-48-4
Compound Formula Co
Molecular Weight 58.93
Appearance Gray to Black Powder
Melting Point 1495 ℃
Boiling Point 2870 ℃
Poisson's Ratio 0.31
Solubility in H2O N/A
Thermal Expansion (25 °C) 13.0 µm·m-1·K-1

Cobalt Powder Health & Safety Information

Signal Word Danger
Hazard Statements H228-H317-H334-H351
Hazard Codes Xn
Risk Codes 42/43-53
Safety Statements 22-24-37-61
Transport Information UN 3089 4.1/PG 2
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