CO-PRECIPITATION OF Am AND Eu WITH LANTHANUM OXALATES

Journal Article · Thu Dec 31 23:00:00 EST 1959 · Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

OSTI ID:4017366

Grebenshchikova, V I; Bryzgalova, R V

Co-precipitation of Am and Eu with lanthanum oxalate was studied in order to determine the mechanism of coprecipitation and the crystallization coefficients of the components. Co-precipitation of Eu results in co- crystallization, forming a mixed crystal. The crystallization coefficient, independent of acidity from 0.1 up to 1.5 N HNO/sub 3/, is 3.8. The crystallization coefficient diminishes with increased oxalate ion concentration as a result of reduced Eu/sup 3//sup +/ concentration due to complexing with oxalate ions. The crystallization coefficients for Am (D = 4.8) and Eu (D = 3.8) indicate that separation by fractionating lsnthanum oxalate crystals is impossible. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-018142
• OSTI ID: 4017366
• Journal Information: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.), Journal Name: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.) Vol. Vol: 2; ISSN RADKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
AMERICIUM
CHEMISTRY
COMPLEXES
CRYSTALLIZATION
EUROPIUM
LANTHANUM COMPOUNDS
NITRIC ACID
OXALATES
PRECIPITATION
REACTION KINETICS