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Topic summary

Trisulfur

Trisulfur
Names IUPAC name
Trisulfur
Other names
Thiozone
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
  • InChI=1S/S3/c1-3-2
    Key: NVSDADJBGGUCLP-UHFFFAOYSA-N
  • trisulfanidylo S3: InChI=1S/HS3/c1-3-2/h1H/p-1
    Key: WMXWXNVGXOWZRJ-UHFFFAOYSA-M
  • [S-][S+]=S
  • trisulfanidylo S3: [S-]S[S]
Properties S3Molar mass96.198 g/mol Appearance Cherry-red Structure bent Related compounds
Related compounds
Ozone
Disulfur monoxide
Sulfur dioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

The S3 molecule, known as trisulfur, sulfur trimer, thiozone, or triatomic sulfur, is a cherry-red allotrope of sulfur. It comprises about 10% of vaporised sulfur at 713 K (440 °C; 824 °F) and 1,333 Pa (10.00 mmHg; 0.1933 psi). It has been observed at cryogenic temperatures as a solid. Under ordinary conditions it converts to cyclooctasulfur.

8 S3 → 3 S8
Wikipedia source