SOLUBILITY AND ION EXCHANGE METHODS FOR DETERMINING THE COMPLEX FORMATION OF PLUTONIUM AND AMERICIUM III IN AQUEOUS SOLUTIONS

Journal Article · Thu Jan 01 04:00:00 EST 1959 · Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

OSTI ID:4189664

Moskin, A I

The formation of Pu(IV) complexes in phosphoric acid solutions and the dissociation constants of Pu(IV) phosphate complexes were studied by solubility methods. The Me: addend ratio of various Pu(IV) phosphate complexes and complexes of other investigated systems tends to shift, with the increase of complex forming agent concentration, toward the side of complexes with larger coordination numbers. The method of ion exchange was used in studies of tri- and pentavalent plutonium complex forenation in oxalate and ethylenediaminetetraacetate solutions. Also, the distribution of small quantities of plutonium and americium between the solutions and KU-2 ammonium resin was studied with and without a complex forming agent in the pH range I to 5 at 20 plus or minus 1 deg C. The content of plutonium and americium(III) was determined radiometrically. The pK magnitudes for examined complexes were calculated using the pK equation calculated for trivalent transuranium elements, and pK = 0.0645 x A/sup 1.24/. The pK's for Np(III) and Bk(III) EDTA complexes were also estimated. The similarity of trivalent plutonium and americium behavior was observed as well as the behavior of tetra, penta-, and hexavalent plutoniuin with other actinides of identical valence. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-005246
• OSTI ID: 4189664
• 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: 1; ISSN RADKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
ACTINIDES
AMERICIUM COMPLEXES
BEHAVIOR
BERKELIUM COMPLEXES
CHEMISTRY
DECOMPOSITION
DISTRIBUTION
EDTA
ION EXCHANGE
MEASURED VALUES
NEPTUNIUM COMPLEXES
OXALATES
PHOSPHORIC ACID
PLUTONIUM
PLUTONIUM COMPLEXES
QUANTITATIVE ANALYSIS
RADIOMETERS
RESINS
SOLUBILITY
SOLUTIONS
THERMAL RADIATION
USES
WATER