Wikipedia
In chemistry, peroxycarbonate (sometimes peroxocarbonate) is a divalent anion with formula . It is an oxocarbon anion that consists solely of carbon and oxygen. It would be the anion of a hypothetical peroxocarbonic acid HO–CO–O–OH or the real hydroperoxyformic acid, HO-O-CO-OH (a.k.a. percarbonic acid, carbonoperoxoic acid).
The peroxycarbonate anion is formed, together with peroxydicarbonate , at the negative electrode during electrolysis of molten lithium carbonate. Lithium peroxycarbonate can be produced also by combining carbon dioxide CO with lithium hydroxide in concentrated hydrogen peroxide HO at −10 °C.
The peroxycarbonate anion has been proposed as an intermediate to explain the catalytic effect of CO on the oxidation of organic compounds by O.
The potassium and rubidium salts of the monovalent hydrogenperoxocarbonate anion have also been obtained.