trisulfane
{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 470617608
| ImageFile = H2S3+metrics.png
| ImageFile1 =
| ImageSize1 = 120
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 13845-23-3
| PubChem = 166718
| ChemSpiderID = 145860
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChEBI = 50365
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 1235793
| ChEMBL_Ref = {{ebicite|changed|EBI}}
| Beilstein = 3903006
| Gmelin = 25473
| SMILES = SSS
| StdInChI = 1S/H2S3/c1-3-2/h1-2H
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = KBMBVTRWEAAZEY-UHFFFAOYSA-N
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
}}
|Section2={{Chembox Properties
| H=2|S=3
| Appearance = yellow liquid
| Density = 1.495 g/cm3 (15 °C)Feher, Franz; Baudler, Marianne. Chemistry of sulfur. III. The preparation and properties of hydrogen trisulfide. Zeitschrift für Anorganische Chemie, 1947. 254: 251-254. ISSN: 0372-7874.
| Solubility = low
| MeltingPtC = −53
| BoilingPtC = 170
| LogP = 1.237
| pKa = 5.826
| pKb = 8.171
}}
|Section8={{Chembox Related
| OtherCompounds = {{ubl|Hydrogen sulfide|Disulfane|Polysulfides}}
}}
}}
Trisulfane is the inorganic compound with the formula {{chem2|H2S3|auto=1}}. It is a pale yellow volatile liquid with a camphor-like odor. It decomposes readily to hydrogen sulfide ({{chem2|H2S}}) and elemental sulfur. It is produced by distillation of the polysulfane oil obtained by acidification of polysulfide salts.R. Steudel "Inorganic Polysulfanes H2Sn with n > 1" in Elemental Sulfur and Sulfur-Rich Compounds II (Topics in Current Chemistry) 2003, Volume 231, pp 99-125. {{doi|10.1007/b13182}}