Nanosecond pulse radiolysis of aqueous N, N-diethylhydroxylamine solution

The reaction mechanisms and rate constants of N, N-diethylhydroxylamine (DEHA) with ·OH, CO₃^-·, e_aq^- and ·H were studied. Results show that ·OH radicals oxidize DEHA by hydrogen abstraction from DEHA's hydroxyl group to form transient (C₂H₅)₂NO·, which has an absorption maximum at 395 nm. The transient intermediates for the reactions of DEHA with CO₃^-· and e_aq^-, as well as protonated DEHA with ·H, show no absorption peak between 300 and 800 nm. The rate constants for the reactions of DEHA with ·OH, CO₃^-· and e_aq^-, also protonated DEHA with ·H, were measured. (author)