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CAS No 7782-40-3 , methane

  • Name: methane
  • Synonyms: Aquadag; Marsh gas;Carbon;methane; Biogas; Activated charcoal; CARBON BLACK; Fire Damp; Methyl hydride; Graphite;
  • CAS Registry Number:
  • Melting Point: 3727 C
  • Boiling Point:
    Vapour density:
  • EINECS: 231-953-2
  • Molecular Weight: 16.04246
  • InchiKey: VNWKTOKETHGBQD-UHFFFAOYSA-N
  • InChI: InChI=1S/CH4/h1H4
  • Molecular Formula: CH4
  • Molecular Structure:CAS No:7782-40-3 methane
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7782-40-3 CVD DIAMOND CUTTING TOOLS

  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong ,Hong kong
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7782-40-3 Diamond

  • China Beijing Cerametek Materials Co. Ltd. [Manufacturer]
  • Tel: +86-10-6156.6641
  • Fax: +86-10-6156.1674
  • Address: Beijing Cerametek Materials Co. Ltd.
    2-E051, BPE, W. NongLin Rd.,
    FangShan, Beijing, 102400,
    China ,China
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7782-40-3 DIAMOND DIAMOND POWDER

  • Germany Impag Import GmbH [Manufacturer]
  • Tel: 0049 (0) 69 85 000 8 0
  • Fax: 0049 (0) 69 85 000 8 80
  • Address: Impag Import GmbH
    Fritz-Remy-Strasse 25
    63075 Offenbach ,Germany
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7782-40-3 Diamond

  • China Tianjin Hexietonghang Chemicals Co.,Ltd. [Manufacturers]
  • Tel: 86-15130684660
  • Fax: 022-60410056
  • Address: No.75, chongqing street Changqing Science, Industry & Business Industrial Park, Jinnan District, Tianjin- China tianjin,tianjinChina
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7782-40-3 GRAPHITE / DIAMOND NANOMIXTURE

  • Germany PlasmaChem GmbH [Manufacturer]
  • Tel: +49 30 6392 6313/ +49 176/201-448-75
  • Fax: +49 30/6392-6314
  • Address: PlasmaChem GmbH
    Rudower Chaussee 29
    D-12489 Berlin
    Germany ,Germany
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7782-40-3 Diamond

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7782-40-3 DIAMOND

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China ,China
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References of methane
Title: Diamond
CAS Registry Number: 7782-40-3
Literature References: A crystalline form of carbon. Mined as a mineral, principally in South Africa. (Non-commercial) synthesis from other carbon compds (e.g., lignin) by means of elevated temperatures (about 2700°) and pressures (about 800,000 lbs/sq inch): Desch, Nature 152, 148 (1943); Neuhaus, Angew. Chem. 66, 525 (1954); Hall, Chem. Eng. News 33, 718 (1955); Bridgman, Sci. Am. 1955, 46; Hall, J. Chem. Educ. 38, 484 (1961); Bundy, Ann. N.Y. Acad. Sci. 105, 951-982 (1964). Books: S. Tolansky, History and Use of Diamond (London, 1962) 166 pp; R. Berman, Physical Properties of Diamond (Oxford, 1965) 442 pp.
Properties: Face-centered cubic crystal lattice. Burns when heated with a hot enough flame (over 800°, oxygen torch). d425 3.513. nD20 2.4173. Hardness = 10 (Mohs' scale). Sp heat at 100 K: 0.606 cal/g-atom/K. Entropy at 298.16 K: 0.5684 cal/g-atom/K. Band gap energy: 6.7 ev. Dielectric constant 5.7. Electron mobility: ~1800 cm2/v-sec. Hole mobility: 1200 cm2/v-sec. Can be pulverized in a steel mortar. Attacked by laboratory-type cleaning soln (potassium dichromate + concd H2SO4). In the jewelry trade the unit of weight for diamonds is one carat = 200 mg. Ref: Wall Street J. 164, no. 36, p 10 (Aug 19, 1964).
Index of refraction: nD20 2.4173
Density: d425 3.513
Use: Jewelry. Polishing, grinding, cutting glass, bearings for delicate instruments; manuf dies for tungsten wire and similar hard wires; making styli for recorder heads, long-lasting phonograph needles. In semiconductor research.