Chemical State of Uranium-239 in Neutron-Irradiated Uranium(IV) and Uranyl(Vl) Sulfate Solutions

Saito, Nobufusa; Sekine, Tatsuya

doi:10.1246/bcsj.31.789

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1991

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“…Saito and Sekine [3] observed a high retention (97%) of 239 U, in irradiated solid uranyl sulphate; however, for uranium(IV) sulphate solutions, the retention was only 39%. Peretrukhin et al [4] have found that in K 2 U0 2 C1 4 · 2H 2 0 and U0 2 (N0 3 ) 2 · 6H 2 0 most of 239 U appeared in the form of U(VI) while for 239 Np, the dominant oxi-dation state was Np(IV).…”

Section: Introductionmentioning

confidence: 98%

Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds

Mahamid

Paulus

1991

Radiochimica Acta

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Speciation of 239 U and 239 Np formed by the nuclear transformations 238 U(n,)j) 239 U -> 239 Np is reported. Various solid compounds, U0 2 (N0 3 ) 2 • 6H 2 0, (NH 4 ) 2 U 2 0 7 , U0 2 (CH 3 C00) 2 • 2H 2 0, U0 2 C 2 0 4 · 3 H 2 0, U0 2 (HC0 2 ) 2 · H 2 0, U0 2 C1 2 • 3 H 2 0, UCU and U(CH 3 COO) 4 , were irradiated in a thermal neutron flux of 10 12 cm -2 s 1 and analyzed by HPLC.This study suggests that the migration of actinides should be limited for radwastes stored in organic reducing matrixes.

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Section: Introductionmentioning

confidence: 98%

Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds

Mahamid

Paulus

1991

Radiochimica Acta

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Chemical State of Uranium-239 in Neutron-Irradiated Uranium(IV) and Uranyl(Vl) Sulfate Solutions

Cited by 1 publication

References 3 publications

Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds

Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds

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Chemical State of Uranium-239 in Neutron-Irradiated Uranium(IV) and Uranyl(Vl) Sulfate Solutions

Cited by 1 publication

References 3 publications

Chemical Effects of the 238U(n,y)239U Reaction and of the 239U→β– 239Np Decay in Solid Uranium Compounds

Chemical Effects of the 238U(n,y)239U Reaction and of the 239U→β– 239Np Decay in Solid Uranium Compounds

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Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds

Chemical Effects of the ²³⁸U(n,y)²³⁹U Reaction and of the ²³⁹U→^β– ²³⁹Np Decay in Solid Uranium Compounds