The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00487224" target="_blank" >RIV/68378271:_____/16:00487224 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10967-015-4530-6" target="_blank" >http://dx.doi.org/10.1007/s10967-015-4530-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10967-015-4530-6" target="_blank" >10.1007/s10967-015-4530-6</a>

Result language
angličtina
Original language name
The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase
Original language description
The radiolytic changes in oxidation state for solutions of initially Np(V) and/or Np(VI) were investigated by gamma-irradiation in conjunction with UV/Vis spectroscopy of the aqueous phase. Samples were irradiated in varying concentrations of nitric acid, and with or without the presence of 30 % TBP in dodecane. At short irradiation times Np(V) was oxidized to Np(VI), even in the presence of the organic phase. Upon the radiolytic production of sufficient amounts of nitrous acid, reduction of Np(VI) to Np(V) occurred in both phases. This was accompanied by stripping of the previously extracted Np(VI). Nitric acid concentrations of 6 M mitigated this reduction.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/EE2.3.30.0057" target="_blank" >EE2.3.30.0057: Strengthening capacity of research teams in the field of physical sciences</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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