Journal of Radioanalytical and Nuclear Chemistry

, Volume 106, Issue 6, pp 345–356 | Cite as

Relationship between dissolution rate of uranium dioxide pellets in nitric acid solutions and their porosity

  • T. Fukasawa
  • Y. Ozawa


Dissolution of uranium dioxide pellets /10 mmø×11 mm/ in nitric acid was studied. A dependence of the initial dissolution rate on acid concentration and temperature was observed. The effective surface area of the pellet was measured during the dissolution process, and compared with its apparent surface area. The experimental dissolution curve was in good agreement with the curve obtained by simulations assuming that the dissolution rate depends on the effective surface area.


Porosity Dioxide Inorganic Chemistry Uranium Nitric Acid 
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Copyright information

© Akadémiai Kiadó 1986

Authors and Affiliations

  • T. Fukasawa
    • 1
  • Y. Ozawa
    • 1
  1. 1.Energy Research LaboratoryHitachi Ltd.Hitachi, IbarakiJapan

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