Dithionic acid is diprotic and salts called dithionates are known. No acid salts (i.e.: one proton lost) have been discovered. All dithionates are readily soluble in water.[2] They are mild oxidizing and mild reducing agents. The shape of the dithionate ion is like ethane, but two SO3 groups adopt an almost eclipsed conformation. The S—S bond length is about 2.15 Å; the S—O bonds are rather short with a bond length of 1.43 Å.
dithionic, acid, h2s2o6, chemical, compound, known, only, solution, names, iupac, name, dithionic, acid, other, names, hypodisulfuric, acid, identifiers, number, 14970, model, jsmol, interactive, image, chebi, chebi, 29208, chemspider, 25128, pubchem, 26985, u. Dithionic acid H2S2O6 is a chemical compound known only in solution 2 Dithionic acid Names IUPAC name dithionic acid 1 Other names hypodisulfuric acid Identifiers CAS Number 14970 71 9 N 3D model JSmol Interactive image ChEBI CHEBI 29208 Y ChemSpider 25128 Y PubChem CID 26985 UNII 9MP5KH5623 Y CompTox Dashboard EPA DTXSID50164368 InChI InChI 1S H2O6S2 c1 7 2 3 8 4 5 6 h H 1 2 3 H 4 5 6 YKey RMGVZKRVHHSUIM UHFFFAOYSA N YInChI 1 H2O6S2 c1 7 2 3 8 4 5 6 h H 1 2 3 H 4 5 6 Key RMGVZKRVHHSUIM UHFFFAOYAM SMILES O S O O S O O O Properties Chemical formula H2S2O6 Molar mass 162 14 g mol 1 Conjugate base Dithionate Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa N verify what is Y N Infobox references Contents 1 Salts 2 Synthesis 3 See also 4 ReferencesSalts editMain article Dithionate Dithionic acid is diprotic and salts called dithionates are known No acid salts i e one proton lost have been discovered All dithionates are readily soluble in water 2 They are mild oxidizing and mild reducing agents The shape of the dithionate ion is like ethane but two SO3 groups adopt an almost eclipsed conformation The S S bond length is about 2 15 A the S O bonds are rather short with a bond length of 1 43 A Synthesis editDithionates can be made by oxidizing a sulfite from the 4 to the 5 oxidation state but on a larger scale they are made by oxidizing a cooled aqueous solution of sulfur dioxide with manganese dioxide 2 MnO2 3 SO2 MnS2O6 MnSO4 The manganese dithionate solution formed can then be converted to dithionate salts of other metals by metathesis reactions Ba2 aq MnS2O6 aq MnSO4 aq BaSO4 s BaS2O6 2H2O aq Concentrated solutions of dithionic acid can subsequently be obtained treating a barium dithionate solution with sulfuric acid BaS2O6 aq H2SO4 aq H2S2O6 aq BaSO4 s See also editHypophosphoric acid the phosphorus equivalent References edit International Union of Pure and Applied Chemistry 2005 Nomenclature of Inorganic Chemistry IUPAC Recommendations 2005 Cambridge UK RSC IUPAC ISBN 0 85404 438 8 p 130 Electronic version a b Greenwood Norman N Earnshaw Alan 1997 Chemistry of the Elements 2nd ed Butterworth Heinemann ISBN 978 0 08 037941 8 pp 715 716 www chemindustry com chemicals 1022920 html CASNo reference Retrieved from https en wikipedia org w index php title Dithionic acid amp oldid 1105110089, wikipedia, wiki, book, books, library,
