STUDY OF THE COMPLEX FORMATION OF AMERICIUM WITH DI-ISOAMYL ESTER METHYLPHOSPHINIC ACID (DAMP)

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

OSTI ID:4749595

Zemlyanukhin, V I; Savoskina, G P; Pushlenkov, M F

In view of the good results obtained with DAMP (diisoamyl ester methylphosphinic acid) in the extraction of Pu, the complex formation of trivalent Am and its extraction from nitric, perchloric, hydrochloric, sulfuric, and acetic acid solutions with this agent were investigated. The tests were carried out at 20 plus or minus 2 deg C, mixing the organic and aqueous solutions for 5 minutes, then centrifuging and analyzing the mixture. The Am/sup 241/ preparation used contained less than 2% of other alpha emitters; its concentration was determined radiometrically, while the concentration of the acids was obtained by titration. The results indicated that DAMP has the same properties as tributyl phosphate. The distribution coefficient of Am was found to be quite high during the extraction from nitric and perchloric acid solutions in which it forms a trisolvate; on the other hand the element does not lend itself well for extraction from solutions containing any of the 3 other acids. The constant of complex formation of the compound Am(NO/sub 3/)/sub 3/ - 3 DAMP was found to be k = 8.3. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-014388
• OSTI ID: 4749595
• 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: 4; ISSN RADKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACETIC ACID
AMERICIUM 241
AMERICIUM COMPLEXES
BUTYL PHOSPHATES
CENTRIFUGATION
CHEMISTRY
DISTRIBUTION
ESTERS
HYDROCHLORIC ACID
MIXING
NITRIC ACID
PLUTONIUM
SOLUTIONS
SOLVENT EXTRACTION
SULFURIC ACID
WATER