OXIDATION OF NEPTUNIUM(IV) AND PLUTONIUM(IV) IN ALKALINE-SOLUTIONS

Authors
SHILOV VP ASTAFUROVA LN GARNOV AY YUSOV AB KROT NN
Citation
Vp. Shilov et al., OXIDATION OF NEPTUNIUM(IV) AND PLUTONIUM(IV) IN ALKALINE-SOLUTIONS, Radiochemistry, 39(5), 1997, pp. 438-442
Citations number
9
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
39
Issue
5
Year of publication
1997
Pages
438 - 442
Database
ISI
SICI code
1066-3622(1997)39:5<438:OONAPI>2.0.ZU;2-K
Abstract
The behavior of Np(TV) and Pu(IV) hydroxides in 0.5-14 M NaOH in the p resence of O-2, O-3, KMnO4, Fe(CN)(6)(3-), FeO42-, and CrO42- was stud ied. All these oxidants convert Np(IV) into Np(V) and Np(VI). In 8-14 M NaOH, Np(VII) is formed under the action of O-3, MnO4-, Fe(CN)(6)(3- ), and FeO42-. The same reagents, except O-2 and CrO42-, oxidize Pu(IV ) partially or completely.