Pyrosulfate

Chemical structure of the disulfate anion

In chemistry, disulfate or pyrosulfate is the anion with the molecular formula S
2O2−
7. Disulfate is the IUPAC name. [1] It has a dichromate-like structure and can be visualised as two corner-sharing SO4 tetrahedra, with a bridging oxygen atom.[2] In this anion, sulfur has an oxidation state of +6. Disulfate is the conjugate base of the hydrogen disulfate (hydrogen pyrosulfate) ion HS
2O20−
7, which in turn is the conjugate base of disulfuric acid (pyrosulfuric acid).

See also

References

  1. ↑ 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.
  2. ↑ "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) doi:10.1016/j.jssc.2005.03.022
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