Effects of impurities on PuO/sub 2/ dissolution in nitric-hydrofluoric acid solutions

Conference · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7348403

Tallent, O K; Mailen, J C

The effects of 0.10 M Cu/sup 2 +/, Hg/sup 2 +/, Zn/sup 2 +/, La/sup 3 +/, Ce/sup 3 +/, Al/sup 3 +/, Th/sup 4 +/,Zr/sup 4 +/, Cr/sup 3 +/, and Fe/sup 3 +/ on PuO/sub 2/ dissolution in 8.0M HNO/sub 3/--0.1M HF were investigated. Except for Cr/sup 3 +/ and Fe/sup 3 +/, the amount of Pu dissolved in 1 hour can be predicted by either log C(Pu) = -0.32 log K/sub F/ - 1.53 (K/sub F/ = first stability constant for the impurity metal fluoride complex) or log C(Pu) = -0.5 Z/sup 2//d-1.11 (Z = ionic charge of impurity cation, d = sum of impurity cation and fluoride ionic radii in angstroms) (DLC)

• Research Organization: Oak Ridge National Lab., Tenn. (USA)
• OSTI ID: 7348403
• Report Number(s): CONF-760622-9
• Country of Publication: United States
• Language: English

Related Subjects

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ALUMINIUM COMPOUNDS
AQUEOUS SOLUTIONS
CATIONS
CERIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
CHROMIUM COMPOUNDS
COPPER COMPOUNDS
DISPERSIONS
DISSOLUTION
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
IMPURITIES
INORGANIC ACIDS
IONS
IRON COMPOUNDS
LANTHANUM COMPOUNDS
MERCURY COMPOUNDS
MIXTURES
NITRIC ACID
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
PLUTONIUM DIOXIDE
PLUTONIUM OXIDES
RARE EARTH COMPOUNDS
SOLUTIONS
SOLVENT PROPERTIES
THORIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM COMPOUNDS
ZINC COMPOUNDS
ZIRCONIUM COMPOUNDS