Oxygen-substituted compounds - peroxomonophosphate

3 Oxygen-substituted compounds — peroxomonophosphate The hydrolysis of peroxomonophosphoric acid (H3PO5), viz. 

In solutions of very high ionic strength (7.5) it is suggested that the reaction is first-order in both peroxophosphate and hydrogen ion concentrations, with positive salt effect. At 48.5 °C, k = 2.62 x 10 l.mole . sec E = 20.2 kcal. mole ) for the region is which the neutral species predominates. 

Decomposition of the same acid is briefly reported as second order in the peroxoacid with a maximum rate k = 7.1 x 10 l.mole . sec at 35.8 °C) at the pH (12.5) at which the acid was estimated to be half dissociated. Reaction (2) might be written, 

A preliminary study of the oxidation of nitrite, sulphite, selenite and phosphite claims that one oxygen atom is transferred per mole of peroxomonophosphate reacting. A slight kinetic study of the nitrite reaction was made. 

Oxidation of iodide is very fast and has not been studied. The reaction with bromide has more accessible rates. The rate equation was originally given as ° 

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