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|Section2= }} The dithionate (or metabisulfate) anion, S2O62−, is a sulfur oxoanion derived from dithionic acid, H2S2O6. Its chemical formula is sometimes written in a semistructural format, as ()2−. The sulfur atoms of the dithionate ion are in the +5 oxidation state due to the presence of the S-S bond. Generally dithionates form stable compounds that are not readily oxidised or reduced. Strong oxidants oxidise them to sulfates and strong reducing agents reduce them to sulfites and dithionites. Aqueous solutions of dithionates are quite stable and can be boiled without decomposition.〔 〕 The γ irradiation of crystalline dithionates produces SO3 The dithionate ion can act as a bidentate ligand.〔''Structures of Some Copper (II) Complexes Containing S2O62 The structure of the dithionate ion in the solid state is staggered in Na2S2O6.2H2O, whereas in the anyhydrous potassium salt it is nearly eclipsed.〔 ==Compounds== Compounds containing the dithionate ion include: * sodium dithionate, Na2S2O6 * potassium dithionate, K2S2O6 * barium dithionate, BaS2O6 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「dithionate」の詳細全文を読む スポンサード リンク
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