Trisulfur

Trisulfur
Trisulfur.png	Ball-and-stick model of trisulfur
Names
	IUPAC name Trisulfur
	Other names Thiozone
Identifiers
CAS Number	12597-03-4 ;
3D model (JSmol)	Interactive image; Trisulfanidyl S3−: Interactive image;
ChEBI	CHEBI:29388; Trisulfanidyl S3−: CHEBI:29399;
ChemSpider	62201;
PubChem CID	139340; Trisulfanidyl S3−: 5460598;
CompTox Dashboard (EPA)	DTXSID00155004 ;
	InChI InChI=1S/S3/c1-3-2 Key: NVSDADJBGGUCLP-UHFFFAOYSA-N; Trisulfanidyl S3−: InChI=1S/HS3/c1-3-2/h1H/p-1 Key: WMXWXNVGXOWZRJ-UHFFFAOYSA-M;
	SMILES [S-][S+]=S; Trisulfanidyl S3−: [S-]S[S];
Properties
Chemical formula	S3
Molar mass	96.198 g/mol
Appearance	Cherry-red
Structure
Molecular shape	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). Infobox references

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