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Persulfates are a class of inorganic compounds containing the peroxydisulfate anion, S2O8^2-. Some common persulfate compounds include:
* Potassium persulfate (K2S2O8)
* Sodium persulfate (Na2S2O8)
* Ammonium persulfate ((NH4)2S2O8)
* Magnesium persulfate (MgSO5·7H2O)
* Calcium persulfate (CaSO5)
* Barium persulfate (BaSO5)