Tridymite (SiO2)

CAS Registry Number®

15468-32-3
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CAS Name

Tridymite (SiO2)

Molecular Formula

O2Si

Molecular Mass

60.08

Cite this Page

Tridymite (SiO2).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?ref=15468-32-3 (retrieved 2024-03-28) (CAS RN: 15468-32-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    2230 °C
  • Melting Point (1)

    1703 °C
  • Density (1)

    2.3 g/cm³

Source(s)

  • (1) International Chemical Safety Cards data were obtained from the National Institute for Occupational Safety and Health (US)

Other Names and Identifiers

InChI

InChI=1S/O2Si/c1-3-2

InChIKey

InChIKey=VYPSYNLAJGMNEJ-UHFFFAOYSA-N

SMILES

[Si](=O)=O

Canonical SMILES

O=[Si]=O

Other Names for this Substance

  • Tridymite (SiO2)
  • Tridymite
  • α-Tridymite
  • Christensenite
  • Tridymite 118

Deleted or Replaced CAS Registry Numbers

1317-94-8, 12414-70-9

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