Cupric oxide 1317-38-0 large in supply CAS NO.1317-38-0

chemical properties black monoclinic crystal or black to brown-black amorphous crystalline powder; insoluble in water and alcohol; soluble in dilute acid, ammonium chloride, ammonium carbonate and potassium cyanide.
uses 1. cupric oxide can used for glass, porcelain colorants, oil desulfurization agent, hydrogenation agent, organic synthesis catalyst, and also used in the manufacture of rayon, gas analysis, etc.
2. used as analytical reagent (for nitrogen determination), oxidant and catalyst.
3. used for the coloring agents in glass, enamel and ceramic industry, the anti-wrinkle agents of paint and the polish of optical glass. used in the manufacture of dyes, organic catalyst carriers and copper compounds. also used in the manufacture of artificial silk and oil desulfurization agents. used as the raw materials of other nantokites and artificial gemstones.
4. used as the pigments of glass and porcelain, desulfurization agents, catalysts, and also used in rayon industry
5. used for the determination of carbon compounds in organic compounds
6. used as analytical reagents, oxidants, catalysts and petroleum desulfurizers.
7. cupric oxide can used for the coloring agents in glass, enamel and ceramic industry, the anti-wrinkle agents of paint and the polish of optical glass. used in the manufacture of dyes, organic catalyst carriers and copper compounds. also used in the manufacture of artificial silk and oil desulfurization agents. used as the raw materials of other nantokites and artificial gemstones.
8. used for blue green pigments, artificial gemstones, colored glass, ceramic glaze, oil desulfurization agents and organic synthesis catalysts, as well as for the carbon determination in gas analysis. the applications of nano-copper oxide: (1) as an important inorganic material, it has a wide range of applications in the catalytic, superconducting, ceramics and other fields; (2) used as catalyst , catalyst carrier and electrode active material;(3) used for the colorants of glass and porcelain, the polishing agents of optical glass, organic synthesis catalysts, oil desulfurization agents and hydrogenation agents;(4) used for the manufacture of artificial gemstones and other copper oxides;(5) used for rayon manufacture, gas analysis and organic compounds determination;(6) used as the burning rate catalyst of rocket propellant. nano-copper oxide powder has more excellent catalytic activity and selectivity than the large-sized copper oxide powder.
toxicity see cuprous oxide.
production methods 1. copper powder oxidation method. reaction equation:
4cu + o2 → 2cu2o
2cu2o + 2o2 → 4cuo
cuo + h2so4 → cuso4 + h2o
cuso4 + fe → feso4 + cu↓
2cu + o2 → 2cuo
operating methods: roast the raw materials of copper ash and copper slag, and then heat them with gas for the initial oxidation to remove the water and organic impurities in raw materials. the resulting primary oxides are naturally cooled, pulverized, and then subjected to secondary oxidation to obtain crude copper oxides. add crude copper oxides to the reactor pre-loaded 1: 1 sulfuric acid, and react under heating and stirring until the relative density of the liquid doubles and the ph value becomes 2 to 3. after the generated copper sulfate solution stands until clarification, add iron shavings under heating and stirring conditions to replace copper, and then wash the mixture with hot water to remove sulfate and iron. after centrifugal separation and drying, the above copper is oxidized and roasted for 8 hours at 450℃. then the crude products are cooled and crushed to 100 mesh. after oxidized in oxidizing furnace, the final copper oxide powders are obtained by centrifugal separation.

2. copper powder oxidization method:
roast the raw materials of copper ash and copper slag, and then heat them with gas for the initial oxidation to remove the water and organic impurities in raw materials. the resulting primary oxides are naturally cooled, pulverized, and then subjected to secondary oxidation to obtain crude copper oxides. add crude copper oxides to the reactor pre-loaded 1: 1 sulfuric acid, and react under heating and stirring until the relative density of the liquid doubles and the ph value becomes 2 to 3. after the generated copper sulfate solution stands until clarification, add iron shavings under heating and stirring conditions to replace copper, and then wash the mixture with hot water to remove sulfate and iron. after centrifugal separation and drying, the above copper is oxidized and roasted for 8 hours at 450℃. then the crude products are cooled and crushed to 100 mesh. after oxidized in oxidizing furnace, the final copper oxide powders are obtained.
4cu+o2→2cu2o
cu2o+0.5o2→2cuo
cu0+h2s04→cuso4+h2o
cuso4+fe→feso4+cu↓
2cu+o2→2cuo
hazards & safety information category : toxic substances
toxicity classification : high toxicity
acute toxicity : oral-rat ld50 470 mg/kg; celiac-mouse ld50: 273 mg/kg
flammability hazardous properties :
non-combustible; producing toxic copper-containing fumes in fire
storage and transportation characteristics :
storehouse should be low-temperature, well-ventilated and dry; stored separately with food and raw materials
fire extinguishing agent : water, carbon dioxide, dry powder, sand
chemical properties black fine free powder
cupric oxide preparation products and raw materials
preparation products cupric sulfate-->imidazole-->m-cresol -->glyoxal-->copper sulfate pentahydrate-->furfuryl alcohol-->4-methoxy-2-morpholin-4-yl-thiazole-5-carbaldehyde-->2-furoic acid-->cuprous oxide-->ethyl vanillin-->4-aminodiphenylamine-->5-nitroindole-->vat green 3-->copper(ii) chloride dihydrate-->1-methyl-5-nitro-1h-indole-->cupric nitrate trihydrate-->3-(1h-pyrazol-1-yl)benzaldehyde-->copper(ii) chloride dihydrate-->d-gluconic acid copper(ii) salt-->vinyl fluoride-->5-aminoindole-->chlorophyllin copper complex sodium salt-->vat black 9-->cuo-al inorganic adhesive-->2,3-(methylenedioxy)benzaldehyde-->hexyl hexanoate-->copper(ii) trifluoromethanesulfonate
raw materials iron-->cupric sulfate-->copper-->copper sulfate pentahydrate-->coal gas