{{Chembox | Name = Trithionic acid | ImageFile = Trithionic acid.svg | IUPACNames = {{bulleted list|Thiodisulfuric acid|1,5-Dihydrido-2,2,4,4-tetraoxido-1,5-dioxy-2,3,4-trisulfy-[5]catena<ref name=EBI>{{cite web |author=EBI Web Team |title=trithionic acid (CHEBI:29210) |url=https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29210 |website=ChEBI |accessdate=23 September 2018 |language=en}}</ref>|Trithionic acid}} | Section1 = {{Chembox Identifiers | CASNo = 27621-39-2 | ChEBI = 29210 | ChEMBL = 3754893 | ChemSpiderID = KRURGYOKPVLRHQ-UHFFFAOYSA-N | PubChem = 492 | SMILES = OS(=O)(=O)SS(=O)(=O)O | InChI = 1S/H2O6S3/c1-8(2,3)7-9(4,5)6/h(H,1,2,3)(H,4,5,6) | InChIKey = KRURGYOKPVLRHQ-UHFFFAOYSA-N }} | Section2 = {{Chembox Properties | Formula = {{chem2|auto=1|H2O6S3}}<ref name=EBI /><ref name=EBI2>{{cite web |title=Compound Report Card |url=https://www.ebi.ac.uk/chembl/compound/inspect/CHEMBL3754893 |website=EBI |accessdate=23 September 2018}}</ref><ref name=PubChem>{{cite web |title=Trithionic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Trithionic_acid |website=PubChem |accessdate=23 September 2018 |language=en}}</ref> | H=2 | O=6 | S=3 | Formula_Charge = 0 | MolarMass_ref= <ref name=PubChem /> | Density = 2.4±0.1 g/cm<sup>3</sup> | MeltingPtC = 324.41 | BoilingPtC = 739.35 | Solubility = 1.0·10<sup>6</sup> mg/L | LogP = −1.1<ref name=EBI2 /> | VaporPressure = 1.07·10<sup>−16</sup> Pa (8.05·10<sup>−19</sup> mm Hg) | pKa = −6.94<ref name=EBI2 /> | ConjugateBase = [[Hydrogen trithionate]] | RefractIndex = 1.700 }} | Section6 = {{Chembox Pharmacology | HalfLife = 0.570 hours }} }} '''Trithionic acid''' is a [[polythionic acid]] with three sulfur atoms. It can be viewed as two [[bisulfite]] radicals bridged by a sulfur atom.

==References== {{Reflist}} {{Sulfur compounds}}

[[Category:Sulfur oxoacids]]

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