Product Name: Cupric Oxide Place of Origin: China Brand Name: Jinzhang Quality/Safety Certifications: ISO9001-2000 Inner Packing: 25KG/BAG, 40BAGS PER PALLET Price Terms: FOB, CIF,CNF Payment Terms: L/C at sight Supply Ability: 2,000mt/year Features: 1) Specific gravity: 6.3 - 6.49 2) Melting point: 1326°C 3) Insoluble in water and alcohol 4) Soluble in acid, ammonia chloride and potassium cyanide solution 5) Applications: a) Electronics industry b) Coloring agent for ceramic and porcelain enamel c) Fireworks, dyes, catalysts and other copper salts d) Desulfurizer of oil e) Viscose industry 6) Parameters: a) Industry grade: i) Cu: 76.0% (min.) ii) CuO: 98.0% (min.) iii) Chlorides: 0.2% (max.) iv) Sulfates: 0.2% (max.) v) Hydrochloric acid insoluble: 0.2% (max.) vi) Residue on 100 mesh: 1.0% (max.) b) Electroplate grade: i) Cu: 78.7% (min.) ii) CuO: 98.5% (min.) iii) Fe: 300ppm (max.) iv) Zn: 200ppm (max.) v) Chlorides: 0.015% (max.) vi) Sulfates: 0.03% (max.) vii) Hydrochloric acid insoluble: 0.1% (max.) viii) Residue on 100 mesh: 0.5% (max.) 7) Dissolving speed (in diluted sulfuric acid): <1min 8) Transportation and storage: a) Store in a dry ventilated warehouse b) Do not transport or store with strong acid or foods Inner packing: In woven bags lined with aluminum foil paper bags N.W.: 25kg