Published 2000 | Version v1
Journal article Metadata-only

Catalysis of oxidation of Pu(3) by tret-butyl hydroperoxide by Fe(3) ions

Creators

  • 1. GHTs RF VNII Neorganicheskikh Materialov im. akad. A.A. Bochvara, Moscow (Russian Federation)

Description

Catalysis by Fe(3) ions of Pu(3) oxidation by tret-butyl hydroperoxide is investigated. Pu(3) oxidation by tret-butyl hydroperoxide in the presence of Fe(3) ions is limited by slow stage of interaction of Fe2 ions with (CH3)3COOH with following fast reversible Pu3+ oxidation by Fe3+ ions. In accordance with this mechanism the rate of the reaction in HNO3 solution is described by equation -d[Pu(3)]/dt=k[Pu(3)][(CH3)3COOH][Fe(3)][HNO3]1.5/[Pu(4)], where k=0.206±0.007 l2.5/(mol2.5·min) at 26 Deg C and variable ionic strength. Activation energy is 58.7±1.1 kJ/mol

Abstract (Russian)

Исследован катализ ионами Fe(3) реакции окисления Pu(3) гидропероксидом трет-бутила. Окисление Pu(3) гидропероксидом трет-бутила в присутствии ионов Fe(3) лимитируется медленной стадией взаимодействия ионов Fe2 и (CH3)3COOH с последуюшим окислением ионов Pu3+ ионами Fe3+ в быстрой обратимой стадии. В соответствии с этим механизмом скорость реакции в растворе HNO3 описывается уравнением -d[Pu(3)]/dt=k[Pu(3)][(CH3)3COOH][Fe(3)][HNO3]1.5/[Pu(4)], где k=0.206±0.007 л2.5/(моль2.5·мин) при 26 град C и переменной ионной силе. Энергия активации найдена равной 58.7±1.1 кДж/моль

Additional details

Additional titles

Original title (Russian)
Катализ ионами Фе(3) реакции окисления Пу(3) гидропероксидом трет-бутила

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
42
Journal Issue
2
Journal Page Range
p. 124-127
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32008735
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ACTIVATION ENERGY; CHEMICAL REACTION KINETICS; CONCENTRATION RATIO; NITRIC ACID; ORGANIC OXYGEN COMPOUNDS; OXIDATION; PLUTONIUM COMPOUNDS; REDUCING AGENTS; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
ACTINIDE COMPOUNDS; CHEMICAL REACTIONS; ENERGY; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; REACTION KINETICS; TEMPERATURE RANGE; TRANSURANIUM COMPOUNDS

Optional Information

Notes
12 refs., 2 figs., 1 tab.