Flash photolysis of per[oxydi]sulfate ions in aqueous solutions. The sulfate and ozonide radical anions

Radical Cations of Phenyl‐Substituted Aziridines: What Are the Conditions for Ring Opening?

“…These bands rise concurrently, with a similar rate as that observed for the decay of the sulfate radical anion at 450 nm [26,27] (k = 9.0 10…”

“…[44] Concerning the measurements with peroxodisulfate, the produced solvated . [26,27] In this case the OH-radicals can disturb, therefore tert-butanol is added in order to trap the OHradicals. [23,45] Pulsing in n-butyl chloride, solvent radical cations are formed on direct ionization.…”

Kinetics of the autoxidation of sulfur(iv) co-catalyzed by peroxodisulfate and silver(i) ions

“…Steps (R4) and (R5) are further chain propagating steps that are well known form the literature of sulfur(IV) autoxidation 1 and also from pulse radiolysis studies. [60][61][62][63] Step (R6), the recombination of sulfate ion radical is again well established experimentally, 64,65 and is the typical chain termination step in the radical chain mechanism resulting in the autoxidation of sulfur(IV). 38,40 Considering only steps (R1)-(R6) already gives a viable possible mechanism for the silver(I) and peroxodisulfate ion catalyzed autoxidation of sulfur(IV).…”

Hg0 absorption in potassium persulfate solution

“…On the contrary, no or little available species are produced in acidic aqueous solutions. Dogliotti and Hayon (1967) reported that sulfate radicals dominated in the photolysis of persulfate ions in neutral and acidic aqueous solutions. However, in alkaline solutions, sulfate radicals are converted into hydroxyl radicals (OH·).…”

“…Persulfate oxidation is generally conducted under heat-, photo-or metal-catalyzed conditions because the oxidation rates can be greatly accelerated. Highly reactive species such as sulfate radicals 4 (SO ) − ⋅ and hydroxyl radicals (OH·) are generated as a result of photolysis or heat decomposition of persulfate ions in aqueous phases (Nosov, 1966; Dogliotti and Hayon, 1967;Hayon and McGarvey, 1967;Berlin, 1986;Tanner and Osman, 1987).…”