O2; O3 in not given Kinetics; autoxidation induces by O3; shaking 0.2 m NaH2PO2 with a mixture of O2 and O3 (2-16 vol-percent O3) at 25 ° C;;

NaOH or pyridine in water an aq. soln. of peroxophosphorous acid, from O3- or F2O-induced autoxid-ation of aq. H3PO3, treated with NaOH or pyridine, is forming dibenzoyl-peroxide with benzoylchloride;;

in sulfuric acid aq. H2SO4; peroxophosphorous acid, from O3- or F2O-induced autoxid-ation of aqueousH3PO3, is eliminating H2O2 in aq. H2SO4;;

in water an aq. soln. of peroxophosphorous acid, from O3- or F2O-induced autoxid-ation of aq. H3PO3, leads with KI to liberation of I2;;