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CAS No 7631-86-9 , dioxosilane

  • Name: dioxosilane
  • Synonyms: Infusorial earth; SILICON DIOXIDE;Quartz;dioxosilane; Sand; Cristobalite; Silicic anhydride; Dioxosilane; Diatomaceous earth;
  • CAS Registry Number:
  • Melting Point: 1610 ºC
  • Flash Point: n/a
  • Boiling Point: >100 °C(lit.)
  • Density: 2.6
  • Refractive index: 1.46
  • Safety Statements: R36/37
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 28112200
  • Flash Point: n/a
  • EINECS: 231-545-4
  • Molecular Weight: 60.0843
  • InchiKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N
  • InChI: InChI=1S/O2Si/c1-3-2
  • Risk Statements: S26;S37/39
  • Molecular Formula: O2Si
  • Molecular Structure:CAS No:7631-86-9 dioxosilane
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7631-86-9 SILICON DIOXIDE

  • United States AerChem inc. [Manufacturer]
  • Tel: 800.523.0091/ 812.334.9996
  • Fax: 812.334.1960
  • Address: AerChem inc.
    3935 W Roll Avenue
    Bloomington IN 47403 null,nullUnited States
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7631-86-9 SILICA

  • United States Reagents, Inc. [Manufacturer]
  • Tel: 800-732-8484
  • Fax: 704-552-7594
  • Address: Reagents, Inc.
    P.O. Box 240746
    4746 Sweden Rd.
    Charlotte, NC 28224 null,nullUnited States
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7631-86-9 Amorphous silica

  • China Tianjin Jinlituo Chemical Co,.Ltd [Importer/Exporter]
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  • Address: Gate No. 3, Bldg.AoJing No.715 Rd. Da Gu Nan , Dist. Hexi,Tianjin China Tianjin,TianjinChina
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7631-86-9 SILICA

  • United States E.M. Sergeant Pulp & Chemical Co., Inc. [Manufacturer]
  • Tel: 973-472-9111
  • Fax: 973-472-5686
  • Address: E.M. Sergeant Pulp & Chemical Co., Inc.
    6 Chelsea Road
    Clifton, NJ 07012 null,nullUnited States
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7631-86-9 Amorphous silica

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7631-86-9 Amorphous silica

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7631-86-9 Amorphous silica

  • China Tianjin Hongyuan Maoye Chem CO.,ltd [Manufacturer, Trading Company, Association]
  • Tel: 86-22-23591358
  • Fax: 86-22-23591358
  • Address: Fukang Road, Nankai District Tianjin China null,nullChina
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7631-86-9 SILICA

  • United States Creative Compounds, LLC [Manufacturer]
  • Tel: 877-203-6010
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  • Address: Creative Compounds, LLC
    600 Daugherty
    Scott City, MO 63780 null,nullUnited States
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7631-86-9 Amorphous silica

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7631-86-9 SILICA

  • United States Rhodia Rare Earths and Silica Systems [Manufacturer]
  • Tel: 1-800-515-6065/ 1-609-860-3200
  • Fax: 1-609-860-2228
  • Address: Rhodia Rare Earths and Silica Systems
    CN 7500
    Cranbury, NJ 08512 null,nullUnited States
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References of dioxosilane
Title: Silicon Dioxide
CAS Registry Number: 7631-86-9
CAS Name: Silica
Synonyms: silicic anhydride
Molecular Formula: O2Si
Molecular Weight: 60.08
Percent Composition: O 53.26%, Si 46.75%
Line Formula: SiO2
Literature References: Occurs in nature as agate, amethyst, chalcedony, cristobalite, flint, quartz, sand, tridymite. Reviews: Kirk-Othmer Encyclopedia of Chemical Technology vol. 18 (Interscience, New York, 2nd ed., 1969) pp 46-111; Rochow in Comprehensive Inorganic Chemistry vol. 1, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 1388-1402. Toxicology: L. T. Fairhall, Industrial Toxicology (Hafner, New York, 1969) pp 105-107.
Properties: Transparent, tasteless crystals, or amorphous powder. d (amorphous) 2.2. d0 (quartz) 2.65. Melts to a glass. Silica has the lowest coefficient of expansion by heat of any known substance. It is practically insol in water or acids, except hydrofluoric acid in which it readily dissolves forming the gas silicon tetrafluoride; it is also slowly attacked by heating with concd phosphoric acid. The crystallized forms of silica are scarcely attacked by alkalies, while the amorphous is sol, especially when finely divided. See also Infusorial Earth.
Density: d (amorphous) 2.2; d0 (quartz) 2.65
CAUTION: Potential symptom of overexposure to amorphous silica are eye irritation and pneumoconiosis. Potential symptoms of overexposure to crystalline silica as respirable dust are cough, dyspnea, wheezing; decreased pulmonary function, progressive respiratory symptoms (silicosis). See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 276-279. Crystalline silica (respirable size), primarily quartz dusts occurring in industrial and occupational settings, is listed as a known human carcinogen: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-231.
Use: Manuf glass, water glass, refractories, abrasives, ceramics, enamels; decolorizing and purifying oils, petroleum products, etc.; in scouring- and grinding-compounds, ferrosilicon, molds for castings; as anticaking and defoaming agent.