Persulfate

A persulfate (sometimes known as peroxysulfate or peroxodisulfate) is a compound containing the anions SO²⁻
₅ or S
₂O²⁻
₈. The anion SO²⁻
₅ contains one peroxide group per sulfur center, whereas in S
₂O²⁻
₈, 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, SO²⁻
₅
Peroxydisulfate S
₂O²⁻
₈

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.
↑ Harald Jakob, Stefan Leininger, Thomas Lehmann, Sylvia Jacobi, Sven Gutewort. "Peroxo Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_177.pub2. ISBN 978-3-527-30673-2.{{cite encyclopedia}}: CS1 maint: multiple names: authors list (link)
↑ "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.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)

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[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. doi:10.1149/2.1161811jes. S2CID 106396614.

[Ullmann-2] Harald Jakob, Stefan Leininger, Thomas Lehmann, Sylvia Jacobi, Sven Gutewort. "Peroxo Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_177.pub2. ISBN 978-3-527-30673-2.{{cite encyclopedia}}: CS1 maint: multiple names: authors list (link)

[3] "Geo-Cleanse International". Geocleanse.com. Retrieved 2012-06-13.

[4] 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.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)