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Journal of Radioanalytical and Nuclear Chemistry

, Volume 143, Issue 2, pp 373–379 | Cite as

Interaction of nitric acid and tetravalent actinides with uranium in TBP-phase

  • B. Ya. Zilberman
  • Yu. S. Fedorov
Solution Chemistry

Abstract

Infrared absorption spectra of HNO3 solutions in UO2(NO3)2(TBP)2 have been taken. The formation of a hydrogen bond between HNO3 and nitrate or phosphoryl group in UO2(NO3)2(TBP)2 has been established. On extracting Pu(IV) and Np(IV) by 30% TBP-dodecane, dependence of the distribution coefficients on concentration has been found at UO2(NO3)2 concentrations in the aqueous phase upwards from 0.4M. This dependence appeared in the temperature interval 0–60°C. Such effects may be caused by ordered structure of saturated uranyl nitrate solutions in TBP.

Keywords

Nitrate Absorption Spectrum Uranium Nitric Acid Aqueous Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1990

Authors and Affiliations

  • B. Ya. Zilberman
    • 1
  • Yu. S. Fedorov
    • 1
  1. 1.Khlopin Radium InstituteLeningradUSSR

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