Peroxycarbonate
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| Molar mass | 76.01 g/mol |
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In chemistry, peroxycarbonate (sometimes peroxocarbonate, IUPAC name: oxocarbonate or oxidocarbonate) or percarbonate is a divalent anion with formula Template:Chem/link. It is an oxocarbon anion that consists solely of carbon and oxygen. It is the anion of peroxycarbonic acid[1][2] also called hydroperoxyformic acid,[3] Template:Chem2.
The peroxycarbonate anion is formed, together with peroxydicarbonate Template:Chem2, at the negative electrode during electrolysis of molten lithium carbonate.[4] Lithium peroxycarbonate can be produced also by combining carbon dioxide CO2 with lithium hydroxide in concentrated hydrogen peroxide Template:Chem2 at −10 °C.[5]
Electrolysis of a solution of lithium carbonate at -30° to -40 °C yields a solution of the Lithium percarbonate, which can liberate iodine from potassium iodide instantaneously. The crystalline salt has not been isolated.
The peroxycarbonate anion has been proposed as an intermediate to explain the catalytic effect of Template:Chem2 on the oxidation of organic compounds by Template:Chem2.[6]
The potassium and rubidium salts of the monovalent hydrogenperoxycarbonate anion (aka. hydroxycarbonate, biperoxycarbonate) Template:Chem2 have also been obtained.[7][8][9][10]
See also
- Sodium percarbonate, actually a perhydrate of sodium carbonate.
- Sodium peroxycarbonate
- Orthocarbonate anion Template:Chem/link
- Dipropyl peroxydicarbonate
References
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- ↑ Mimoza Gjikaj (2001), "Darstellung und strukturelle Charakterisierung neuer Alkali- bzw. Erdalkalimetallperoxide, -hydrogenperoxide, -peroxocarbonate und -peroxohydrate" Script error: No such module "webarchive".. Doctoral Thesis, University of Köln. 115 pages.
- ↑ Script error: No such module "Citation/CS1".
- ↑ M. Mehta and A. Adam (1998), Z. Kristallogr., Suppl. Issue 15 p. 53. Cited by Gjikaj.
- ↑ M. Mehta and A. Adam (1998), Z. Kristallogr., Suppl. Issue 15 p. 46. Cited by Gjikaj.
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