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SI-0020

Silicon Dioxide

  • Formula: SiO2
  • |
  • CAS No: 7631-86-9
  • |
  • EC No: 231-545-4
Other Identifiers
  • Catalog #
    SI-0020
  • Synonyms
    Silica, Silicon(IV) Oxide
  • Market Focus
    High Purity Thin Film Coating
  • Pubchem CID
    24261
  • SMILES
    O=[Si]=O
  • IUPAC Name
    dioxosilane
  • Inchl Identifier
    InChI=1S/O2Si/c1-3-2
  • Inchl Key
    VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Categories: Oxides
Silicon Dioxide Health and Safety
  • Signal Word
    Danger
  • Pictograms
    GHS08 - Health Hazard
  • Hazards

    H372 Causes damage to organs through prolonged or repeated exposure.

  • Precautions

    P260 Do not breath dust / fume / gas / mist / vapors / spray.

    P264 Wash skin thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P314 Get medical advice / attention if you feel unwell.

    P501 Dispose of contents / container to an approved waste disposal plant.

    • View Safety Data Sheet
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Silicon Dioxide Physical Properties
  • Molecular Weight
    60.08 g/mol
  • Typical Purity
    99.999
  • Form

    Available as a powder or granules (Low OH available, 1-3mm, 2-5mm).

  • Theoretical Density
    2.196 g/cm³
  • Melting Point
    1,713°C (3,115.4°F)
  • Boiling Point
    2,950°C (5,342°F)
Silicon Dioxide Optical Properties
  • Refractive Index
    1.46 at 500nm
  • Transmission Range
    170 - 2000nm
  • Evaporation Temperature
    1800 - 2200ºC
  • Evaporation Source
    e-beam
Silicon Dioxide Picture
Silicon Dioxide crystalline granules

5kg of Silicon Dioxide in bottles and loose granules in a petri dish.