Solubilities of Pu(III), Am(III), and Cm(III) oxalates

Burney, G.A.; Porter, John A.

doi:10.1016/0020-1650(67)80128-4

Cited by 30 publications

(3 citation statements)

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“…The solubility of americium in the filtrate is consistent with published literature values [10] at ambient temperatures (23-25°C), the final nitric acid (0.23 mol/L) and oxalic acid (0.1 mol/L) concentrations. Increasing the precipitation temperature to 60°C leads to an increase in americium losses to around 10 mg/L, which is also acceptable from a recovery viewpoint and provides the option of influencing the americium oxalate particle size distribution and morphology.…”

Section: Figure 5 Experimental Setup For the Precipitation Of Americsupporting

confidence: 76%

The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

et al. 2017

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Section: Figure 5 Experimental Setup For the Precipitation Of Americsupporting

confidence: 76%

The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

et al. 2017

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“…Plutonium can be precipitated from acidic solutions by forming an insoluble oxalate salt of Pu(III). It has been shown that the concentrations of both nitric acid and oxalic acid affect the solubility of the Pu(III) oxalate product (1,2). The solubility of the plutonium(III) oxalate is minimized under the conditions of 0.5-1.0 M nitric acid and 0.05-0.1 M excess oxalic acid.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric method for the analysis of plutonium and nitric acid using partial least-squares regression

Carey¹,

Wangen²,

Dyke³

1989

Anal. Chem.

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A method for the determination of Pu(III) and nitric acid concentrations using the multivariate calibration technique of partial least-squares (PLS) regression coupled with visible absorption spectra (500-880 nm) Is presented. Quantitation of plutonium using Its visible spectrum Is straightforward; however, the effects of nitric acid on the Pu(III) absorption spectra are subtle and nitric acid quantitation from the absorbance spectrum Is more difficult. In this study PLS regression Is successfully applied to quantitate both plutonium and nitric acid using the Information contained In the absorption spectra of appropriate solutions. The calibration set, covering a range of Pu(III) from 1.99 to 29.9 g/L was modeled with a standard error of 0.20 g/L. Similarly, nitric acid ranging from 0.44 to 3.08 M was successfully modeled with a standard error of 0.18 M. Evaluation of the calibration models, using test samples that span the range of the calibration concentrations, gave predictions on the order of the standard error of the calibration models.

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“…Concentrationsof rare earth elements which are only KB-IDAHO. WPD/PGS/APPTECH[3][4][5][6][7][8][9][10][11][12][13][14]…”

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confidence: 99%

Evaluation and selection of aqueous-based technology for partitioning radionuclides from ICPP calcine

Olson¹,

Schulz²,

Burchfield³

et al. 1993

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WINCO scientistsand engineers in selecting,evaluating,and ranking candidate aqueous-basedprocesses and technologiesfor potentialuse in partitioning selected radionuclidesfrom nitric acid solutionsof retrieved Idaho Chemical ProcessingPlant (ICPP) calcine. Radionuclidesof interest are all transuraniumelements,9°Sr, 99Tc, 1291, and 137Cs. The six man Panel, consistingof US Departmentof Energy contractoremployees and outside consultants,met with involvedWINCO technicaland managementpersonnel for 4 days (February16-19, 1993) on the campus of the

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Solubilities of Pu(III), Am(III), and Cm(III) oxalates

Cited by 30 publications

References 4 publications

The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

Spectrophotometric method for the analysis of plutonium and nitric acid using partial least-squares regression

Evaluation and selection of aqueous-based technology for partitioning radionuclides from ICPP calcine

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Solubilities of Pu(III), Am(III), and Cm(III) oxalates

Cited by 30 publications

References 4 publications

The Separation of 241Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

The Separation of 241Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

Spectrophotometric method for the analysis of plutonium and nitric acid using partial least-squares regression

Evaluation and selection of aqueous-based technology for partitioning radionuclides from ICPP calcine

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The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

The Separation of ²⁴¹Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems