REACTION-KINETICS OF NP AND PU IONS WITH HYDROXYLAMINE DERIVATIVES .5. REDUCTION OF NP(VI) BY N-METHYLHYDROXYLAMINE

Authors
KOLTUNOV VS BARANOV SM ZHAROVA TP SHAPOVALOV MP
Citation
Vs. Koltunov et al., REACTION-KINETICS OF NP AND PU IONS WITH HYDROXYLAMINE DERIVATIVES .5. REDUCTION OF NP(VI) BY N-METHYLHYDROXYLAMINE, Radiochemistry, 35(4), 1993, pp. 429-435
Citations number
8
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
35
Issue
4
Year of publication
1993
Pages
429 - 435
Database
ISI
SICI code
1066-3622(1993)35:4<429:RONAPI>2.0.ZU;2-#
Abstract
The reaction between Np(VI) and N-methylkydroxylamine in HNO3 solution has a short induction period after which the rate obeys the equation -d[Np(VI)]/dt = k[Np(VI)][CH3NH2OH+]0.7/[H+]0.4, where k = 35.0 +/- 0. 9 liter0.3/mole0.3.min at 25-degrees-C and mu = 2. The activation ener gy is 63.6+/-3.0 kJ/mole. A mechanism explaining the autocatalytic nat ure of the start of the reaction is discussed.