REACTION OF PU(V) WITH REDUCTANTS IN ALKALI SOLUTIONS

Authors
YUSOV AB GARNOV AY SHILOV VP KROT NN
Citation
Ab. Yusov et al., REACTION OF PU(V) WITH REDUCTANTS IN ALKALI SOLUTIONS, Radiochemistry, 39(6), 1997, pp. 511-514
Citations number
4
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
39
Issue
6
Year of publication
1997
Pages
511 - 514
Database
ISI
SICI code
1066-3622(1997)39:6<511:ROPWRI>2.0.ZU;2-W
Abstract
Reduction of Pu(V) in NaOH solutions is studied spectrophotometrically and alpha-radiometrically. Sodium dithionite (Na2S2O4) and thiourea d ioxide [(NH2)(2)CSO2], taken in a tenfold excess, reduce Pu(V) to Pu(I V) in 4 M NaOH at 50 degrees C within several minutes. Hydroquinone is a weaker reductant. Ascorbate and sulfite virtually do not react with Pu(V). Hydrazine and hydroxylamine, taken in a 10(-3) M concentration , reduce Pu(V) in 4-8 M NaOH with a moderate rate at 20 degrees C; hyd roxylamine is effective even in 8-14 M NaOH.