Persulfate

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