Persulfate Explained

A persulfate (sometimes known as peroxysulfate or peroxodisulfate)^[1] 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.^{[2] [3]}

Ions

• Peroxomonosulfate ion,

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

Notes and References

1. Shafiee. Saiful Arifin. Aarons. Jolyon. Hamzah. Hairul Hisham. 2018. Electroreduction of Peroxodisulfate: A Review of a Complicated Reaction. Journal of the Electrochemical Society. 165. 13. H785–H798. 10.1149/2.1161811jes. 106396614 . free.
2. Web site: Geo-Cleanse International . Geocleanse.com . 2012-06-13.
3. Wacławek, S., Lutze, H. V., Grübel, K., Padil, V.V.T., Černík, M., Dionysiou, D.D. (2017) . Chemistry of persulfates in water and wastewater treatment: A review. . Chemical Engineering Journal . 330 . 44–62 . 10.1016/j.cej.2017.07.132. 2017-12-15 .