HOT-ATOM CHEMISTRY OF OXYACIDS OF HALOGENS. I. BROMATE (in Japanese)
Journal Article
·
· J. Atomic Energy Soc. Japan
The behavior of recoil bromine atoms arising from the (n, gamma ) reaction on bromate samples in various physical states was studied. The samples irradiated with neutrons were bromate crystals, aqueous bromate solutions, and anion exchange resins loaded with bromate ions. A large fraction of radioactive bromine atoms appeared in a chemical form of bromide which may be separable from bromate by ion exchange or solvent extraction, whereas the remaining active atoms were found in bromate form. The degree of retention of active atoms as bromate was dependent strongly upon the physical state of the irradiated sample, decreasing in the following order; solid, solution, and resin. The retention values in the solid, solution, and resin samples were about 20, 5, and 1% respectively. Separation of bromate and active bromine in the irradiated resin samples was performed by successive treatment of the resin samples with 0.5M KNO/ sub 3/ and then 2M KNO/sub 3/. The elution with 2M KNO/sub 3/ brought about an effluent containing active bromine atoms with an enrichment factor of several hundred. Some fraction of active bromine was retained in the resin phase even after the elution with KNO/sub 3/ was completed. Brief discussion is given regarding the mechanism of the retention of active atoms in solid, solution, and resin phases. (auth)
- Research Organization:
- Univ. of Tokyo
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-002435
- OSTI ID:
- 4231341
- Journal Information:
- J. Atomic Energy Soc. Japan, Journal Name: J. Atomic Energy Soc. Japan Vol. Vol: 1
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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