PREPARATION OF PALLADIUM-109, GALLIUM-72 AND CHROMIUM-51 IN A HIGH SPECIFIC ACTIVITY

Journal Article · Thu Mar 01 04:00:00 EST 1962 · Bunseki Kagaku (Japan)

DOI:https://doi.org/10.2116/bunsekikagaku.11.341· OSTI ID:4146003

Ebihara, H

The preparation of some radioisotopes in a high specific activity was studied utilizing the Szilard-Chalmers effects of some metal oxinates (8- hydroxyquinolinates). The experimental results obtained for palladium, gallium, and chromium oxinates are given. Dehydrated oxinates were irradiated and dissolved in an organic solvent. The organic solution of oxinates was shaken with Michaelis' buffer solutions of various pH values. Comparing radioactivities of both layers, the extractability was calculated. On the other hand, the amount of metals coming into the aqueous phase was determined. Based upon those values each enrichment factor was calculated. The experiments of separation with palladium showed that about 23% activity was found in the aqueous solution at pH 4 after shaking with the organic solution, whereas the oxinate was kept in the organic phase. The experimental data for gallium showed that about 45% activity was found in the aqueous phase of 1N sodium hydroxide solution. Chromium(III) oxinate was kept in the chloroform layer when it was shaken with the aqueous solution of pH 6 to 8. So the hot atom-separation of chromium (III) will be expected at the same pH range. Aniline and chloroform were used for the solvent of chromium oxinate. The extractabilities from each solution were 18 to 19% for the chloroform and about 8% for the aniline. They were scarcely varied at the pH range 6 to 8. (P.C.H.)

• Research Organization: Japan Atomic Energy Research Inst., Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-001738
• OSTI ID: 4146003
• Journal Information: Bunseki Kagaku (Japan), Journal Name: Bunseki Kagaku (Japan) Vol. Vol: 11; ISSN BNSKA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACIDITY
AMINES
ANGULAR DISTRIBUTION
ANILINE
CARBIDES
CARBON
CARBON DIOXIDE
CHEMICAL REACTIONS
CHEMISTRY
CHLOROFORM
CHROMIUM 51
CHROMIUM COMPLEXES
CORROSION
CRYSTALLIZATION
DECAY
ENERGY
ENERGY RANGE
ERRORS
GALLIUM 72
GALLIUM COMPLEXES
GASES
GRAIN BOUNDARIES
HEAT EXCHANGERS
HETEROCYCLICS
HYDROXIDES
IMPURITIES
IRRADIATION
ISOTOPE SEPARATION
LIQUID METAL COOLANT
MEASURED VALUES
MUONS
NEUTRINOS
NUCLEAR EMULSIONS
OPERATION
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
PALLADIUM 109
PALLADIUM COMPLEXES
PARTICLE MODELS
PARTICLE TRACKS
PHENYL RADICALS
PIONS
PREPARATION
QUANTITATIVE ANALYSIS
QUINOLINE