Published 1999
| Version v1
Journal article
Formation of excited (UO22+)* during oxidation of tetravalent uranium in perchloric acid solutions of potassium persulfate. 3. The role of ion of Caro's acid
- 1. RAN, Inst. Organicheskoj Khimii Ufimskogo Nauchnogo Tsentra, Ufa (Russian Federation)
Description
Chemiluminescence was detected in reaction of U(4) oxidation by ion of Caro's acid (HSO5-) in aqueous 0.1-0.01 mol/l HClO4 solutions. Activation energy of reaction in the range 280-313 K preserved constant value E=70 kJ/mol during change of HClO4 concentration from 1.0 up to 0.01 mol/l. Light radiation registered during mixing of U(ClO4)4 and K2S2O8 solutions was determined by tetravalent uranium oxidation by Caro's acid ion - the product of persulfate hydrolysis in aqueous 1 mol/l solution of HClO4. Values of rate constants and chemiluminescence parameters of U(4) and HSO5- interaction in the case of different concentration of oxidizing and reducing agents, sulfate ions and ethanol were obtained
Abstract (Russian)
Обнаружена хемилюминесценция в реакции окисления U(4) ионом кислоты Каро (HSO5-) в водных растворах 0.1-0.01 моль/л HClO4. Энергия активации реакции в интервале температур 280-313 К сохраняет постоянное значение 70 кДж/моль при изменении концентрации HClO4 от 1.0 до 0.01 моль/л. Установлено, что испускание света, регестрируемое при смешивании растворов U(ClO4)4 и K2S2O8, обусловлено окислением четырехвалентного урана ионом кислоты Каро - продуктом гидролиза персульфата в водном растворе 1 моль/л HClO4. Получены значения константы скорости и параметров хемилюминесценции реакции взаимодействия U(4) и HSO5- при различных концентрациях окислителя, восстановителя, а также вводимых в раствор сульфат-ионов и этанолаAdditional details
Additional titles
- Original title (Russian)
- Образование возбушденного (UO
Publishing Information
- Journal Title
- Radiokhimiya
- Journal Volume
- 41
- Journal Issue
- 4
- Journal Page Range
- p. 311-316
- ISSN
- 0033-8311
- CODEN
- RADKAU
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 31015651
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACTIVATION ENERGY; CHEMICAL REACTION KINETICS; CHEMILUMINESCENCE; CONCENTRATION RATIO; EXCITATION; EXCITED STATES; OXIDATION; PERCHLORIC ACID; SULFUR COMPOUNDS; URANIUM COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; EMISSION; ENERGY; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; LUMINESCENCE; OXYGEN COMPOUNDS; PHOTON EMISSION; REACTION KINETICS
Optional Information
- Notes
- 17 refs., 5 figs.