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CAS No 7790-62-7
Application / Uses Preparation Potassium pyrosulfate is a chemical compound, K2S2O7. It contains the pyrosulfate anion S2O72− which has a dichromate like structure and can be visualised as two corner sharing SO4 tetrahedra, with a bridging oxygen atom. A semi-structural formula for pyrosulfate ion is O3SOSO32−. In this compound sulfur has an oxidation state of +6
Application / Uses Preparation Sodium pyrosulfate is a salt of sodium and pyrosulfate, obtained by the dehydration of sodium bisulfate. This is an intermediate stage in the preparation of sulfur trioxide