A persulfate (sometimes known as peroxysulfate or peroxodisulfate) is a compound containing the anions or . The anion contains one peroxide group per sulfur center, whereas in , the peroxide group bridges the sulfur atoms. In both cases, sulfur adopts the normal tetrahedral geometry typical for the S(VI) oxidation state. These salts are strong oxidizers.

Ions

• Peroxomonosulfate ion,

• Peroxydisulfate

Acids

• Peroxymonosulfuric acid (Caro's acid), H2SO5

• Peroxydisulfuric acid, H2S2O8

Example salts

• Sodium peroxomonosulfate, Na2SO5

• Potassium peroxymonosulfate, KHSO5

• Sodium persulfate (sodium peroxydisulfate), Na2S2O8

• Ammonium persulfate (ammonium peroxydisulfate), (NH4)2S2O8

• Potassium persulfate (potassium peroxydisulfate), K2S2O8

• Oxone is a triple salt

References