Aqueous chemistry of iodine
The chemistry of iodine has been examined in aqueous solutions of pH 6 to 10 containing 2500 ppM boron as H/sub 3/BO/sub 3/ at temperatures up to 150/sup 0/C using absorption spectrophotometry to identify and monitor the iodine species present. Kinetic rate constants for the disproportionation of the HOI intermediate, 3HOI= IO/sub 3//sup -/ + 2I/sup -/ + 3H/sup +/, have been measured as a function of pH even though no direct spectral evidence for HOI itself has been observed. An HOI partition coefficient >10/sup 4/ has been estimated; results of ionic strength tests are consistent with HOI being present as an uncharged triatomic species in solution. Redox and radiation effects on the aqueous iodine chemistry have also been described. 11 refs., 2 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5334892
- Report Number(s):
- CONF-840701-28; ON: TI85016384
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ACCIDENTS
AQUEOUS SOLUTIONS
BORIC ACID
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELEMENTS
HALOGENS
HYDROGEN COMPOUNDS
HYDROLYSIS
INORGANIC ACIDS
IODINE
KINETICS
LYSIS
MIXTURES
NONMETALS
PH VALUE
REACTION INTERMEDIATES
REACTION KINETICS
REACTOR ACCIDENTS
REDOX REACTIONS
SOLUTIONS
SOLVOLYSIS
SPARGERS
SPECTROSCOPY
VOLATILITY