Premium High-Purity Copper Powder for Sale Available: high-purity copper powder with 99.9997% purity based on metallic impurities (99.9938% based on metal base), verified by an analytical report from a Swiss institute. The powder has a rounded particle shape and an average particle size of approximately 11.8 µm. * Lot No.: #2205/Cu * Quantity: 250 kg * Laboratory analysis available upon request. Ideal for industrial, metallurgical, research, and specialized manufacturing applications. Contact us for pricing, further details, and delivery arrangements.