Reduction of Plutonium (VI) to Plutonium(III) and (IV) by Sodium Nitrite

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The use of anion exchange for final Pu purification in the Redox facility requires the adjustment of Pa(VI) to Pu(IV). Two methods of reduction were investigated: ferrous sulfamate and nitrite. The ferrous sulfamate method was adopted. Data on reduction of Pu(VI) to Pu(IV) and Pu(III) by nitrite are presented. The reduction by nitrite was found to be dependent on nitrite concentration, temperature, acidity, ferric ion concentration, and time, and it is possible to obtain >90% reduction to Pu(HI) by controlling the above conditions. (D.L.C.)

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7 p.

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Colvin, C. A. October 28, 1963.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 242 times. More information about this report can be viewed below.

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  • Hanford Atomic Products Operation
    Publisher Info: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
    Place of Publication: Richland, Washington
  • Hanford Site (Wash.)
    Publisher Info: Hanford Site (HNF), Richland, WA (United States)
    Place of Publication: Richland, Washington

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The use of anion exchange for final Pu purification in the Redox facility requires the adjustment of Pa(VI) to Pu(IV). Two methods of reduction were investigated: ferrous sulfamate and nitrite. The ferrous sulfamate method was adopted. Data on reduction of Pu(VI) to Pu(IV) and Pu(III) by nitrite are presented. The reduction by nitrite was found to be dependent on nitrite concentration, temperature, acidity, ferric ion concentration, and time, and it is possible to obtain >90% reduction to Pu(HI) by controlling the above conditions. (D.L.C.)

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7 p.

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Other Information: Orig. Receipt Date: 31-DEC-64

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  • October 28, 1963

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  • Sept. 16, 2016, 12:32 a.m.

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  • Nov. 23, 2024, 3:07 a.m.

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Colvin, C. A. Reduction of Plutonium (VI) to Plutonium(III) and (IV) by Sodium Nitrite, report, October 28, 1963; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc870587/: accessed March 12, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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