A persulfate (sometimes known as peroxysulfate or peroxodisulfate)[1] is a compound containing the anions SO52− or S2O82−.[2] The anion SO52− contains one peroxide group per sulfur center, whereas in S2O82−, 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.[3][4]
Ions
- Peroxomonosulfate ion, SO52−
- Peroxydisulfate S2O82−
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 2KHSO5*KHSO4*K2SO4
References
- ^ 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. doi:10.1149/2.1161811jes. S2CID 106396614
- ^
- ^ "Geo-Cleanse International". Geocleanse.com. Retrieved 2012-06-13.
- ^ Wacławek, S., Lutze, H. V., Grübel, K., Padil, V.V.T., Černík, M., Dionysiou, D.D. (2017) (2017-12-15). "Chemistry of persulfates in water and wastewater treatment: A review.". Chemical Engineering Journal. 330: 44–62. doi:10.1016/j.cej.2017.07.132