Copper
Cu
copper
Consulting for Copper
Our experts support you with application, dosage, and compliance.
Identification
- CAS Number
- 7440-50-8
- EC Number
- 231-159-6
- UN Number
- 3077
- Index Number
- 029-024-00-X
- PubChem CID
- 23978
Physical-chemical properties
- Molecular Formula
- Cu
- Molar Mass
- 63.55 g/mol
- IUPAC Name
- copper
Chemical Identifiers
- InChI
- InChI=1S/Cu
- InChI Key
- RYGMFSIKBFXOCR-UHFFFAOYSA-N
Overview
Copper (CAS 7440-50-8) is a metallic chemical element with excellent electrical conductivity and antimicrobial properties. As one of the most versatile and widely utilized metals in industrial applications, copper stands out for its exceptional combination of physical and chemical properties. This reddish-brown transition metal, represented by the chemical symbol Cu, has been essential to human civilization for millennia and continues to play a crucial role in modern technology and manufacturing processes. From a safety perspective, copper metal is classified under GHS pictogram GHS09 with a "Warning" signal word, primarily due to its environmental impact classification as Aquatic Acute 1 and Aquatic Chronic 1. While generally safe to handle with proper precautions, copper requires careful consideration regarding environmental release, as it can be harmful to aquatic life with long-lasting effects. The substance falls under ADR Class 9 for transportation purposes, indicating it requires specific handling protocols during shipping and storage. The metal's outstanding electrical and thermal conductivity properties make it indispensable in electrical wiring, power transmission systems, and heat exchangers. Its natural antimicrobial characteristics have led to increased demand in healthcare applications, particularly for touch surfaces and medical equipment. Additionally, copper's corrosion resistance and malleability make it valuable in plumbing systems, architectural applications, and marine environments. In the broader context of copper chemistry, related compounds such as copper(1+) thiocyanate demonstrate the metal's versatility in forming various chemical combinations for specialized applications, each offering distinct properties for specific industrial needs. OYSI maintains reliable supplies of technical-grade copper to support diverse European industrial requirements across multiple sectors.
Safety & Classification
Aquatic Acute 1; Aquatic Chronic 1
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).
First Aid Measures
Transport (ADR)
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Tunnel Code | - |
| Proper Shipping Name | Kupfer-Pulver, Korngröße >= 1 mm |
| Marine Pollutant | No |
Frequently Asked Questions
What is copper?
Copper is a metallic chemical element with the symbol Cu and CAS number 7440-50-8. It belongs to the transition metals group and has a molecular weight of 63.55 g/mol. Copper is one of the most important industrial metals, known for its excellent electrical and thermal conductivity properties. It appears naturally in the Earth's crust and has been used by humans for thousands of years in various applications.
What are the physicochemical properties of copper?
Copper is a reddish-brown metallic solid at room temperature with a characteristic metallic luster. It has a melting point of 1084.62°C and excellent ductility and malleability. Copper exhibits outstanding electrical conductivity (second only to silver) and thermal conductivity. It is insoluble in water but can react with acids and oxidizing agents. The metal is also antimicrobial and develops a green patina when exposed to air over time.
What is copper used for?
Copper is primarily used in electrical applications including wiring, motors, and electronic components due to its excellent conductivity. It serves as a key material in plumbing systems, heat exchangers, and air conditioning units. Industrial applications include alloy production (brass, bronze), architectural elements, and telecommunications infrastructure. Copper is also utilized in chemical catalysts, pigments, and as an antimicrobial agent in various products.
How to handle copper safely?
Copper should be handled using appropriate personal protective equipment including safety gloves, protective clothing, and eye protection to prevent skin contact and inhalation of dust particles. Ensure adequate ventilation when working with copper powders or during machining operations. Avoid generating dust and use respiratory protection when necessary. Handle in well-ventilated areas and wash hands thoroughly after contact. Store away from incompatible materials and moisture.
How to store copper correctly?
Copper should be stored in dry, well-ventilated areas away from moisture to prevent oxidation and corrosion. Keep containers tightly sealed and protect from direct sunlight and temperature extremes. Store separately from strong acids, alkalis, and oxidizing agents to avoid unwanted reactions. Ensure storage areas are equipped with appropriate spill containment measures. Maintain proper inventory rotation and inspect stored materials regularly for signs of deterioration.
What to do in case of contact with copper?
In case of skin contact with copper, immediately wash the affected area thoroughly with soap and water for at least 15 minutes. If copper dust gets into eyes, rinse immediately with clean water for 15 minutes and seek medical attention. If inhaled, move the person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Remove contaminated clothing and wash before reuse.
How to dispose of copper appropriately?
Copper disposal must comply with local and national waste regulations as it is classified as hazardous to the aquatic environment. Copper waste should be collected separately and sent to authorized recycling facilities, as it is a valuable recyclable material. Do not dispose of copper or copper-containing solutions in regular waste streams or sewage systems. Contact licensed waste management companies for proper collection and treatment of copper-containing waste materials.
How to transport copper?
Copper is classified as ADR Class 9 (Miscellaneous dangerous goods), Group III for transportation purposes. It requires appropriate packaging according to ADR regulations and proper labeling with GHS09 pictogram indicating environmental hazards. Vehicles must carry appropriate documentation and emergency response information. Ensure packages are properly sealed, labeled, and secured during transport. Drivers should be trained in handling procedures and emergency response for Class 9 materials.
Is copper subject to particular regulations?
Copper is regulated under REACH and CLP regulations in Europe, classified as Aquatic Acute 1 and Aquatic Chronic 1 with Warning signal word. It requires safety data sheets and appropriate hazard labeling with GHS09 environmental pictogram. While not listed as SVHC, copper use may be restricted in certain applications due to environmental concerns. Companies must comply with registration requirements and implement appropriate risk management measures for occupational and environmental protection.
Where to buy copper in Europe?
OYSI is a reliable European distributor of copper and copper-based products, offering technical-grade materials for industrial applications. As a specialized chemical distributor, OYSI provides copper with appropriate documentation, safety data sheets, and regulatory compliance support. They serve various industries across Europe with technical expertise and quality assurance. Contact OYSI directly for specific grades, quantities, and technical specifications to meet your industrial requirements.
Services for Copper
Order Copper
Fast delivery across Europe
SDS Service
Request Safety Data Sheet for Copper
Technical Consulting
Application advice for Copper
REACH Safety Data Sheet
REACH Compliance Service
Digital Product Passport
EU-compliant product documentation
ADR Consulting for Copper
Copper is a dangerous good. We support you with labeling, packaging, and transport documentation.
Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.