Published 2005
| Version v1
Journal article
Kinetics of uranyl ion polymerization in the presence of ammonium hydroxide
- 1. National Research Center, Atomic Energy Authority, Cairo (Egypt)
- 2. Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria (Egypt)
Description
Kinetics of the polymerization of UO22+ ion to UO2[(OH)2UO2]42+ in the ammonia-uranyl nitrate system has been studied. The deepening of the color formed with the addition of ammonia made it possible to estimate spectrophotometrically the concentration of the formed UO2[(OH)2UO2]42+ ions in the solution at 420.6 nm. The effects of pH, temperature as well as the concentration of uranyl ion have been investigated. The reaction rate equation for the polymerization reaction is presented. Linear dependencies of logarithm of the apparent reaction-rate constant on both pH and the reverse of temperature were observed. (author)
Additional details
Publishing Information
- Journal Title
- Nukleonika
- Journal Volume
- 50
- Journal Issue
- 2
- Series
- 14 refs., 1 tab., 3 figs.
- Journal Page Range
- p. 57-60
- ISSN
- 0029-5922
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 38009125
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; HYDROLYSIS; POLYMERIZATION; URANYL COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; HOMOGENEOUS MIXTURES; KINETICS; LYSIS; MIXTURES; REACTION KINETICS; SOLUTIONS; SOLVOLYSIS; URANIUM COMPOUNDS