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CAS No 7440-50-8 , copper

  • Name: copper
  • Synonyms: Copper bronze; Arwood copper; Blister copper;copper; Cathode copper; Bronze powder;cuprum; Copper-airborne; Copper powder;
  • CAS Registry Number:
  • Transport: UN 1325/1587/3089
  • Melting Point: 1083 ºC
  • Flash Point: -23 °C
  • Boiling Point: 2595 ºC
  • Density: 8.92
  • Safety Statements: R11
  • Hazard Symbols: F: Flammable;
  • Flash Point: -23 °C
  • EINECS: 231-159-6
  • Molecular Weight: 63.546
  • InchiKey: RYGMFSIKBFXOCR-UHFFFAOYSA-N
  • InChI: InChI=1S/Cu
  • Risk Statements: S16
  • Molecular Formula: Cu
  • Molecular Structure:CAS No:7440-50-8 copper
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7440-50-8 Copper Nanoparticle

  • Copper Nanoparticle Nano Products Copper nano powder Product description:? Cu nanoparticle;?Cu nanopowder; Nano-copper powder; Nanometer copper powder;? Nano copper; Copper nano powder; Nano Cu powder;? CAS 7440-50-8 Product specification:?10~30nm; 6...
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  • China Suzhou Canfuo Nanotechnology Co.,Ltd [Manufacturer]
  • Tel: 86-512-69209808
  • Fax: 86-512-69209855
  • Address: Building 5, NO.369 LuShan Road suzhou,JiangsuChina
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7440-50-8 Ultrafine Copper Powder

  • Ultrafine Copper Powder ?Ultrafine Products Product description:? Copper powder; Ultrafine copper powder; Superfine copper powder;Nano-copper powder. CAS?7440-50-8? Product specification:?0.3μm; 1.5μm Molecular ?formula: Cu? Molecular weight: 63.55...
  • FOB Price: USDfalse - false /
  • China Suzhou Canfuo Nanotechnology Co.,Ltd [Manufacturer]
  • Tel: 86-512-69209808
  • Fax: 86-512-69209855
  • Address: Building 5, NO.369 LuShan Road suzhou,JiangsuChina
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7440-50-8 copper wire scrap

  • Copper WIRE SCRAP, (Millberry) 99.78% at a purity of 99.78% min. 99.78%Max. COPPER: 99, 9% CARBON: 0.03% COBLET: <0, 001 IRON: 0, 005% PHOSPHORUS: <0, 01% SULPHUR: <0, 01% ZINC: 0, 003%
  • China China Jin Run Industrial Co.,Ltd [Manufacturer]
  • Tel: 86-0311-68032691
  • Address: Huai'an East Road,Qiodong Zone shijiazhuang,HebeiChina
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7440-50-8 Brass Powders

  • China Chemrio International Limited [Manufacturer]
  • Tel: +86 574 2789 1268/ +86-139 5789 5864 (mobile)
  • Fax: +86 574 2789 1266
  • Address: Chemrio International Limited
    Room 611-612, Wante Business Center
    No.487 Yangmuqi Road,
    Hi-tech Park Ningbo, 315040,China ,China
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7440-50-8 Copper, foil, 0,015mm x 25mm x 25mm, 99,8%

  • Copper, foil, 0,015mm x 25mm x 25mm, 99,8%
  • Belgium Alkemi [Manufacturer]
  • Tel: +32 9 340 49 49
  • Fax: +32 9 340 49 47
  • Address: Poststraat, 82 B-9160 Lokeren Belgium ,Belgium
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7440-50-8 Copper

  • Copper
  • United States INTERNATIONAL LABORATORY LIMITED [Manufacturer]
  • Tel: ( 650 ) 278-9963
  • Fax: ( 650 ) 589-2786
  • Address: 1067 SNEATH LN SAN BRUNO CA 94066, USA SAN BRUNOUNITED STATES SAN BRUNO,United States
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7440-50-8 Brass Powders

  • China Hangzhou Sage Chemical Co., Ltd. [, Manufacturer]
  • Tel: +86-571-86818502
  • Fax: +86-571-86818503
  • Address: RM501 Tower A, New Youth Plaza, NO.8 Jia Shan Road, Hangzhou, Zhejiang 310014, ,ZhejiangChina
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7440-50-8 Copper, Metal

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7440-50-8 Brass Powders

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7440-50-8 Copper

  • Hong kong ADVANCED TECH. & IND. CO., LTD. [Distributor/Wholesaler]
  • Tel: 86-23902293
  • Fax: 86-27898314
  • Address: UNIT B, 1/F, CHEONG SHING IND. BLDG., 17 WALNUT ST., TAI KOK TSUI, KLN, HONG KONG Hong Kong,nilHong kong
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References of copper
Title: Copper
CAS Registry Number: 7440-50-8
Literature References: Cu; at. wt 63.546; at. no. 29; valences 1, 2. Group IB (11). Occurrence in the earth's crust: 70 ppm; also present in seawater: 0.001-0.02 ppm. Two naturally occurring isotopes: 63 (69.09%), 65 (30.91%); nine artificial isotopes: 58-62, 64, 66-68. One of the earliest known metals. Found in nature in its native state; also in combined form in several minerals including chalcopyrite, q.v., chalcocite, bornite, (Cu5FeS4), tetrahedrite (Cu12Sb4S13), enargite (Cu3AsS4), antlerite (Cu3H4O8S). Extraction from ores: Clark-Hawley, Encyclopedia of Chemistry (Reinhold, New York, 2nd ed., 1966) p 288. Metallurgy of copper and its alloys: Metals Reference Book vols. 1, 2, C. J. Smithells, Ed. (Butterworth's, London, 3rd ed., 1962). A trace element essential to many plants and animals. Occurs in biological complexes such as pheophytin (analog of chlorophyll), hemocyanin, tyrosinase and ceruloplasmin, q.q.v. Reviews of copper and copper compounds: ACS Monograph Series no. 122, entitled "Copper," A. Butts, Ed. (Reinhold, New York, 1954) 936 pp; Massey, "Copper" in Comprehensive Inorganic Chemistry vol. 3, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 1-78; W. M. Tuddenham, P. A. Dougall, Kirk-Othmer Encyclopedia of Chemical Technology vol. 6 (Wiley-Interscience, New York, 3rd ed., 1979) pp 819-869. Book: Inflammatory Diseases and Copper, J. R. J. Sorenson, Ed. (Humana Press, Clifton, NJ, 1982) 622 pp. Review of role in human diseases: G. J. Brewer, Curr. Opin. Chem. Biol. 7, 207-212 (2003); of toxicology and human exposure: Toxicological Profile for Copper (PB2004-107333, 2004) 318 pp.
Properties: Reddish, lustrous, ductile, malleable metal; face-centered cubic structure; commercially available in the form of ingots, sheets, wire or powder. Becomes dull when exposed to air. In moist air gradually becomes coated with green basic carbonate. d 8.94. mp 1083°. bp 2595°. Mohs' hardness 3.0. Resistivity 1.673 microohm-cm. Heat of fusion 48.9 cal/g; heat of vaporization 1150 cal/g. Heat capacity at constant pressure (solid) 0.092 cal/g/°C (20°), (liq) 0.112 cal/g/°C. E0 (aq) Cu+/Cu +0.521 V; E0 (aq) Cu2+/Cu +0.337 V. Very slowly attacked by cold hydrochloric or dil sulfuric acid; readily by dil nitric acid, and by both hot concd H2SO4 and HBr. It is also attacked by acetic and other organic acids. Slowly sol in ammonia water. Water-soluble cupric salts yield with sodium hydroxide a bluish-green precipitate of cupric hydroxide which is changed to black cupric oxide on warming. Potassium ferrocyanide produces a brownish-red precipitate of copper ferrocyanide. Hydrogen sulfide produces in acid solns a black precipitate of cupric sulfide which is sol in soln of sodium cyanide. Aluminum, iron or zinc precipitate metallic copper from its solns.
Melting point: mp 1083°
Boiling point: bp 2595°
Density: d 8.94
CAUTION: Potential symptoms of overexposure to dusts and mists are irritation of eyes, nose, pharynx; nasal perforation; metallic taste; dermatitis. Potential symptoms of overexposure to fumes are irritation of eyes, upper respiratory system; metal fume fever (chills, muscle aches, nausea, fever; dry throat, cough, weakness, lassitude); metallic or sweet taste; discoloration of skin and hair. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 76.
Use: Manuf bronzes, brass, other copper alloys, electrical conductors, ammunition, copper salts, works of art.