title: Aqueous solution of UCl6(2-) in O2 saturated acidic medium: an efficient system to scavenge all primary radicals in spurs produced by irradiation.
abstract: Absorbance measurements find the yield of the oxidation of U(IV) to be (8.75 +/- 0.05) x 10(-7) mol J(-1) in the (60)Co gamma radiolysis of aqueous solutions containing 4.4 x 10(-3) mol L(-1) U(IV) in the presence of O(2) saturated 2 mol L(-1) Cl(-) at pH = 0. This high value of oxidation yield suggests that all primary radicals formed by water decomposition are scavenged in these solutions. Simulations using a nonhomogeneous stochastic kinetic track model agree with the experimental results and are used to explain the mechanism for scavenging radicals and oxidation of U(IV).
authors.forename: E
authors.initials: E
authors.lastname: Atinault
authors.forename: V
authors.initials: V
authors.lastname: De Waele
authors.forename: M
authors.initials: M
authors.lastname: Fattahi
authors.forename: J A
authors.initials: JA
authors.lastname: LaVerne
authors.forename: S M
authors.initials: SM
authors.lastname: Pimblott
authors.forename: M
authors.initials: M
authors.lastname: Mostafavi