Vp. Shilov et al., RATE-CONSTANT EVALUATION FOR THE REACTION OF H-ATOMS WITH U(V) UPON RADIOLYSIS OF AQUEOUS ACID-SOLUTIONS OF URANIUM IONS, High energy chemistry, 28(2), 1994, pp. 92-94
The literature data on gamma-radiolysis of uranium(IV) ions in deaerat
ed perchloric and sulfuric acid solutions were analyzed. It was sugges
ted that peculiarities of the radiolytic process are attributable to a
n oxidation reaction of uranium(V) with H atoms. Upon uranium(IV) radi
olysis, 17 reactions occurring in the solution were considered. The ra
te constant of the reaction U(V) + H was estimated with the use of kno
wn rate constants of elementary reactions as well as U(VI) and H-2 yie
lds and steady-state U(V) concentrations.