Long term plutonium solubility and speciation studies in a synthetic brine

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The rate at which elements can be transported in groundwater systems is governed in part by the solubility of the element in the groundwater. This report documents plutonium solubility experiments in a brine simulant relevant to the Waste Isolation Pilot Plant. Approximately 1 to 2.5 mL of five stock solutions containing single oxidation states of plutonium (Pu(IV)-polymer, Pu{sup 3+}, Pu{sup 4+}, PuO{sub 2}{sup +}, and PuO{sub 2}{sup 2+}) were added to {approximately}75 mL of synthetic H-17 Brine in five reaction vessels. Initial plutonium concentrations ranged from 1.3 {times} l0{sup {minus}4} to 5.l {times} l0{sup {minus}4} M (moles per liter) total … continued below

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20 p.

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Nitsche, Heino; Roberts, K. & Xi, Ruihua December 31, 1993.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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The rate at which elements can be transported in groundwater systems is governed in part by the solubility of the element in the groundwater. This report documents plutonium solubility experiments in a brine simulant relevant to the Waste Isolation Pilot Plant. Approximately 1 to 2.5 mL of five stock solutions containing single oxidation states of plutonium (Pu(IV)-polymer, Pu{sup 3+}, Pu{sup 4+}, PuO{sub 2}{sup +}, and PuO{sub 2}{sup 2+}) were added to {approximately}75 mL of synthetic H-17 Brine in five reaction vessels. Initial plutonium concentrations ranged from 1.3 {times} l0{sup {minus}4} to 5.l {times} l0{sup {minus}4} M (moles per liter) total plutonium. Because these initial concentrations were far above the plutonium solubility limit in H-17 Brine, plutonium-containing solids precipitated. Aqueous plutonium concentrations were measured over time until steady-state was reached, requiring over 300 days in H-17 Brine.

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20 p.

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INIS; OSTI as DE94005097; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

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  • 4. international conference on chemistry and migration behavior of actinides and fission products in the geosphere,Charleston, SC (United States),12-17 Dec 1993

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  • Other: DE94005097
  • Report No.: SAND--93-3846C
  • Report No.: CONF-931201--9
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 10113504
  • Archival Resource Key: ark:/67531/metadc1276089

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 31, 1993

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  • Oct. 12, 2018, 6:44 a.m.

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  • Nov. 15, 2018, 3:13 p.m.

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Nitsche, Heino; Roberts, K. & Xi, Ruihua. Long term plutonium solubility and speciation studies in a synthetic brine, article, December 31, 1993; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1276089/: accessed May 27, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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