, Volume 60, Issue 6, pp 581–587 | Cite as

Kinetics of Np(VI) Reduction with Diformylhydrazine in Nitric Acid

  • K. N. DvoeglazovEmail author
  • E. Yu. Pavlyukevich
  • P. V. Mitrikas


The kinetics of the Np(VI) reduction with diformylhydrazine in a nitric acid solution was studied by spectrophotometry. The reaction rate increases with an increase in the reductant concentration and temperature and decreases with an increase in the HNO3 concentration. The reaction order with respect to Np, diformylhydrazine, and HNO3 is 1, 1.3, and–1.55, respectively. The activation energy of the reaction is 85 ± 10 kJ mol–1.


neptunium solutions reduction diformylhydrazine nitric acid kinetics mechanism 


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© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • K. N. Dvoeglazov
    • 1
    Email author
  • E. Yu. Pavlyukevich
    • 1
  • P. V. Mitrikas
    • 1
  1. 1.Bochvar High-Tech Research Institute of Inorganic MaterialsMoscowRussia

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