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In chemistry, disulfate or pyrosulfate is the anion with the molecular formula ()2 It has a dichromate-like structure and can be visualised as two corner-sharing SO4 tetrahedra, with a bridging oxygen atom.〔"The crystal structure determination and refinements of K2S2O7, KNaS2O7 and Na2S2O7 from X-ray powder and single crystal diffraction data", Ståhl K, Balic-Zunic T, da Silva F, Eriksen K M, Berg R W, Fehrmann R ''Journal of Solid State Chemistry'' 178, 1697–1704, (2005) 〕 In this anion, sulfur has an oxidation state of +6. Disulfate is the conjugate base of the hydrogen disulfate (hydrogen pyrosulfate) ion HS2O7−, which in turn is the conjugate base of disulfuric acid (pyrosulfuric acid). ==See also== * Potassium pyrosulfate * Sodium pyrosulfate * Pyrophosphate 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「pyrosulfate」の詳細全文を読む スポンサード リンク
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