Spherical Copper Powder

Spherical Copper Powder

CAS No. 7440-50-8 | Chemical Formula Cu

Molecular Weight 63.55    EC No. 231-159-6    MDL No. MFCD00010965



Spherical copper powder is a specialized form of copper powder characterized by its unique spherical morphology. Unlike traditional irregular-shaped copper powders, spherical Cu powder consists of uniformly shaped particles that resemble tiny spheres. This distinctive morphology offers several advantages over conventional copper powders, including improved flowability, packing density, and surface area.

It exhibits excellent electrical conductivity, thermal stability, corrosion resistance, and mechanical strength, making it highly desirable for various industrial applications. In the electronics and electrical sectors, it is used in the production of conductive inks, pastes, and coatings for printed circuit boards, electromagnetic shielding, and electronic components. Its high conductivity makes it suitable for applications requiring efficient electrical conduction and heat dissipation.

In addition to electronics, spherical Cu powder finds application in automotive components, such as brake pads, friction materials, and anti-corrosion coatings, where its excellent thermal conductivity, wear resistance, and corrosion resistance contribute to improved performance and durability. Furthermore, it is utilized in additive manufacturing, brazing alloys, lubricants, metal injection molding, and other manufacturing processes due to its versatility and compatibility with various fabrication techniques. The spherical morphology of copper powder enhances its flowability and packability, making it easier to handle and process in industrial applications. Its uniform particle size distribution ensures consistent performance and quality in end products. Moreover, the high purity of spherical Cu powder enables reliable performance in critical applications where material integrity is paramount.

Overall, spherical Cu powder represents a significant advancement in the field of advanced materials, offering enhanced properties and versatility for a wide range of applications across diverse industries. With ongoing research and development efforts aimed at optimizing synthesis techniques and exploring new applications, the potential of spherical copper powder continues to expand, paving the way for innovative solutions in modern manufacturing and technology.



Component Analysis
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Spherical copper powder holds immense potential for a wide range of applications across various industries due to its unique properties and versatile nature. Some notable applications include:

  1. Electronics and Electrical Components: Spherical copper powder is widely used in the electronics industry for the production of conductive inks, pastes, and coatings for printed circuit boards (PCBs), flexible electronics, and electromagnetic shielding applications. Its high electrical conductivity and thermal stability make it ideal for ensuring efficient electrical conduction and heat dissipation in electronic devices.
  2. Additive Manufacturing (3D Printing): Spherical copper powder is utilized in additive manufacturing processes, such as selective laser melting (SLM) and powder bed fusion (PBF), to produce complex metal parts and components with high conductivity and mechanical strength. It enables the fabrication of copper-based parts with intricate geometries and superior dimensional accuracy.
  3. Automotive Industry: In the automotive sector, spherical copper powder is used in brake pads, friction materials, and anti-corrosion coatings due to its excellent thermal conductivity, wear resistance, and corrosion resistance. It contributes to improved performance, durability, and safety in automotive components subjected to high temperatures and mechanical stress.
  4. Metal Injection Molding (MIM): Spherical copper powder serves as a feedstock material in metal injection molding processes, where it is combined with a binder to form a feedstock mixture. After molding, the binder is removed, and the part is sintered to achieve the desired shape and properties. This method allows for the cost-effective production of complex copper components with high precision and dimensional accuracy.
  5. Brazing Alloys: Spherical copper powder is incorporated into brazing alloys used for joining copper, brass, and other metals in various applications, including plumbing, HVAC (heating, ventilation, and air conditioning), and automotive manufacturing. It facilitates the formation of strong, leak-proof joints with excellent thermal and electrical conductivity.
  6. Lubricants and Metal Coatings: Due to its excellent thermal and electrical conductivity, spherical copper powder is added to lubricants and metal coatings to improve their performance in high-temperature and high-friction environments. It enhances the lubricity, wear resistance, and thermal stability of lubricants and coatings, extending the service life of machinery and equipment.
  7. Chemical Catalysts: Spherical copper powder serves as a catalyst in chemical reactions, such as hydrogenation, oxidation, and organic synthesis processes. Its high surface area and reactivity make it suitable for promoting chemical reactions in industries such as petrochemicals, pharmaceuticals, and fine chemicals.

These applications represent just a fraction of the potential uses for spherical copper powder. As research and development efforts continue to advance, new and innovative applications are likely to emerge, further showcasing the versatility and utility of this remarkable material across diverse industries.




According to the UN GHS revision 8

Version: 1.0

Creation Date: Aug 24, 2020

Revision Date: Aug 24, 2020

SECTION 1: Identification


GHS Product identifier

Product name

Copper Powder


Other means of identification

Product number

Other names



Recommended use of the chemical and restrictions on use

Identified uses

Inorganic substances

Uses advised against

no data available


Supplier’s details


Shanghai Greenearth Chemicals Co.,Ltd


Building 2, No.5555, Shenzhuan Hwy, Shanghai , China



1.5Emergency phone number

Emergency phone number


Service hours

Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

SECTION 2: Hazard identification


Classification of the substance or mixture

Not classified.


GHS label elements, including precautionary statements

Pictogram(s)No symbol.
Signal word

No signal word

Hazard statement(s)


Precautionary statement(s)









Other hazards which do not result in classification

no data available

SECTION 3: Composition/information on ingredients



Chemical nameCommon names and synonymsCAS numberEC number
Copper PowderCopper powder7440-50-8231-159-6

SECTION 4: First-aid measures


Description of necessary first-aid measures

If inhaled

Fresh air, rest. Refer for medical attention.

Following skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap.

Following eye contact

Rinse with plenty of water (remove contact lenses if easily possible).

Following ingestion

Rinse mouth. Refer for medical attention .


Most important symptoms/effects, acute and delayed

Exposure Routes: inhalation, ingestion, skin and/or eye contact Symptoms: Irritation eyes, respiratory system; cough, dyspnea (breathing difficulty), wheezing; [potential occupational carcinogen] Target Organs: Eyes, skin, respiratory system, liver, kidneys (increase(d) risk with Wilson’s disease) (NIOSH, 2016)


Indication of immediate medical attention and special treatment needed, if necessary

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for shock and treat if necessary . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal . Copper and related compounds

SECTION 5: Fire-fighting measures


Suitable extinguishing media

Use special powder, dry sand. NO other agents. Water may be ineffective.


Specific hazards arising from the chemical

Combustible. Finely dispersed particles form explosive mixtures in air.


Special protective actions for fire-fighters

Use special powder, dry sand. NO other agents. Water may be ineffective.

SECTION 6: Accidental release measures


Personal precautions, protective equipment and emergency procedures

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.


Environmental precautions

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.


Methods and materials for containment and cleaning up

1. ventilate area of release. 2. collect spilled material in the most convenient and safe manner for reclamation, or for disposal in a secure sanitary landfill. liq containing copper should be absorbed in vermiculite, dry sand, earth, or a similar material. copper dusts & mists

SECTION 7: Handling and storage


Precautions for safe handling

NO open flames.
Handling in a well ventilated place.
Wear suitable protective clothing.
Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Use non-sparking tools.
Prevent fire caused by electrostatic discharge steam.


Conditions for safe storage, including any incompatibilities

See Chemical Dangers.

SECTION 8: Exposure controls/personal protection


Control parameters

Occupational Exposure limit values

TLV: (fume, as Cu): 0.2 mg/m3, as TWA.TLV: (dust and mists, as Cu): 1 mg/m3, as TWA.MAK: (respirable fraction): 0.01 mg/m3; peak limitation category: II(2); pregnancy risk group: C

Biological limit values

no data available


Appropriate engineering controls

Ensure adequate ventilation.
Handle in accordance with good industrial hygiene and safety practice.
Set up emergency exits and the risk-elimination area.

8.3Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Wear safety goggles.

Skin protection

Protective gloves.

Respiratory protection

Use local exhaust or breathing protection.

Thermal hazards

no data available

SECTION 9: Physical and chemical properties and safety characteristics

Physical state

Solid. Powder.


Copper colour.


Odorless /Copper dusts and mists/

Melting point/freezing point

Ca. 1 059 °C. Remarks:Mass increase, indicative of oxidation starts at 200°C.

Boiling point or initial boiling point and boiling range



Noncombustible Solid in bulk form, but powdered form may ignite.

Lower and upper explosion limit/flammability limit

no data available

Flash point


Auto-ignition temperature

> 1 059 °C. Remarks:No self-ignition observed up to the melting point.

Decomposition temperature

no data available


no data available

Kinematic viscosity

no data available


Insoluble (NIOSH, 2016)

Partition coefficient n-octanol/water

-0.57 (calculated)

Vapour pressure

7.5 nanopascal. Temperature:20 °C. Remarks:The calculated vapour pressure values are extrapolated with the Antoine constants from the regression of the data below 140°C (data points 1-8) for temperature 20,25 and 50 °C.;18 nanopascal. Temperature:25 °C. Remarks:The calculated vapour pressure values are extrapolated with the Antoine constants from the regression of the data below 140°C (data points 1-8) for temperature 20,25 and 50 °C.;840 nanopascal. Temperature:50 °C. Remarks:The calculated vapour pressure values are extrapolated with the Antoine constants from the regression of the data below 140°C (data points 1-8) for temperature 20,25 and 50 °C.

Density and/or relative density

Ca. 8.78 g/cm³. Temperature:20 °C.

Relative vapour density

no data available

Particle characteristics

no data available

SECTION 10: Stability and reactivity



100 mg/cu m (as Cu) Copper dusts and mists

Mixtures with acetylenic compounds, ethylene oxide and azides are shock-sensitive. Reacts with strong oxidants such as chlorates, bromates and iodates strong oxidants such as chlorates, bromates and iodates. This generates explosion hazard.


Chemical stability

Becomes dull when exposed to air. in moist air gradually becomes coated with green basic carbonate.


Possibility of hazardous reactions

COPPER combines violently with chlorine trifluoride in the presence of carbon [Mellor 2, Supp. 1, 1956]. Is oxidized by sodium peroxide with incandescence [Mellor 2:490-93, 1946-1947]. Forms an unstable acetylide when acetylene is passed over samples that have been heated enough to form an oxide coating. Reacts more rapidly in powdered or granular form. Subject to explosive reaction then mixed in finely divided form with finely divided bromates chlorates and iodates of barium, calcium, magnesium, potassium, sodium, or zinc; these reactions are initiated by heat, percussion, and occasionally light friction [Mellor 2:310, 1946-1947]. A solution of sodium azide in copper pipe with lead joints formed copper azide and lead azide, both of these compounds can detonate [Klotz, 1973].


Conditions to avoid

no data available


Incompatible materials

Reacts violently with … ammonium nitrate, bromates, chlorates, iodates, chloride, … ethylene oxide, … hydrazine mononitrate, hydrazoic acid, … and potassium oxide .


Hazardous decomposition products

no data available

SECTION 11: Toxicological information

Acute toxicity

  • Oral: LD50 – rat (male/female) – 300 – 500 mg/kg bw.
  • Inhalation: LC50 – rat (male/female) – > 5.11 mg/L air.
  • Dermal: LD50 – rat (male/female) – > 2 000 mg/kg bw.

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available


Cancer Classification: Group D Not Classifiable as to Human Carcinogenicity

Reproductive toxicity

no data available

STOT-single exposure

Inhalation of fumes may cause metal fume fever. See Notes.

STOT-repeated exposure

Repeated or prolonged contact may cause skin sensitization. Ingestion may cause effects on the liver.

Aspiration hazard

A harmful concentration of airborne particles can be reached quickly when dispersed.

SECTION 12: Ecological information



  • Toxicity to fish: LC50 – Pimephales promelas – 193 µg/L – 96 h.
  • Toxicity to daphnia and other aquatic invertebrates: These observations consistently show that the presence of organic matter decreases the bioavailability, uptake, and ecotoxicity of copper in the aquatic environment – Daphnia magna.
  • Toxicity to algae: Based on the algal biomass, the growth rate, the pigment diversity and the autotrophic index, an optimal concentration range was observed between 1 and 35µg Cu/L. – Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum).
  • Toxicity to microorganisms: see summary – activated sludge of a predominantly domestic sewage.


Persistence and degradability

no data available


Bioaccumulative potential

no data available


Mobility in soil

no data available


Other adverse effects

no data available

SECTION 13: Disposal considerations


Disposal methods


The material can be disposed of by removal to
a licensed chemical destruction plant or by controlled incineration
with flue gas scrubbing. Do not contaminate water, foodstuffs,
feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and
offered for recycling or reconditioning.
Alternatively, the packaging can be punctured to
make it unusable for other purposes and then be disposed of
in a sanitary landfill. Controlled incineration
with flue gas scrubbing is possible for combustible packaging materials.

SECTION 14: Transport information


UN Number

ADR/RID: UN3089 (For reference only, please check.)IMDG: UN3089 (For reference only, please check.)IATA: UN3089 (For reference only, please check.)


UN Proper Shipping Name

ADR/RID: METAL POWDER, FLAMMABLE, N.O.S. (For reference only, please check.)IMDG: METAL POWDER, FLAMMABLE, N.O.S. (For reference only, please check.)IATA: METAL POWDER, FLAMMABLE, N.O.S. (For reference only, please check.)


Transport hazard class(es)

ADR/RID: 4.1 (For reference only, please check.)IMDG: 4.1 (For reference only, please check.)IATA: 4.1 (For reference only, please check.)


Packing group, if applicable

ADR/RID: II (For reference only, please check.)IMDG: II (For reference only, please check.)IATA: II (For reference only, please check.)


Environmental hazards



Special precautions for user

no data available


Transport in bulk according to IMO instruments

no data available

SECTION 15: Regulatory information


Safety, health and environmental regulations specific for the product in question

Chemical nameCommon names and synonymsCAS numberEC number
Copper PowderCopper powder7440-50-8231-159-6
European Inventory of Existing Commercial Chemical Substances (EINECS)Listed.
EC InventoryListed.
United States Toxic Substances Control Act (TSCA) InventoryListed.
China Catalog of Hazardous chemicals 2015Not Listed.
New Zealand Inventory of Chemicals (NZIoC)Listed.
Philippines Inventory of Chemicals and Chemical Substances
Vietnam National Chemical InventoryListed.
Chinese Chemical Inventory of Existing Chemical Substances (China
Korea Existing Chemicals List (KECL)Listed.

SECTION 16: Other information

Information on revision

Creation DateAug 24, 2020
Revision DateAug 24, 2020

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%


  • IPCS – The International Chemical Safety Cards (ICSC), website:
  • HSDB – Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC – International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal – The Global Portal to Information on Chemical Substances by OECD, website:
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG – Emergency Response Guidebook by U.S. Department of Transportation, website:
  • Germany GESTIS-database on hazard substance, website:
  • ECHA – European Chemicals Agency, website: https://echa.europa.eu/

Other Information

The symptoms of metal fume fever do not become manifest until a few hours have passed.UN 3089 refers to METAL POWDERS, FLAMMABLE, (n.o.s.)

Any questions regarding this SDS, Please send your inquiry to [email protected]

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and
shall be used only as a guide. The information in this document is based on the present state of our
knowledge and is applicable to the product with regard to appropriate safety precautions. It does not
represent any guarantee of the properties of the product. We as supplier shall not be held liable for any
damage resulting from handling or from contact with the above product.

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