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Abstract <p>The kinetics of 1,2-diformylhydrazine (reagent suggested for the reductive stripping of plutonium in the Purex process) oxidation with nitric acid was studied. The rate equation is first-order with respect to the reductant and third-order with respect to nitric acid in the interval [HNO<sub>3</sub>] = 5.5–9.0 M. It is postulated that the reaction between diformylhydrazine and nitric acid involves their molecular undissociated forms. The activation energy of the reaction is 116 kJ/mol in temperature range 70–90°С.</p>

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1,2-Diformуlhydrazine Oxidation with Nitric Acid

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • K. N. Dvoeglazov,
  • M. A. Arkhipova,
  • A. A. Ambartsumyan

摘要

Abstract

The kinetics of 1,2-diformylhydrazine (reagent suggested for the reductive stripping of plutonium in the Purex process) oxidation with nitric acid was studied. The rate equation is first-order with respect to the reductant and third-order with respect to nitric acid in the interval [HNO3] = 5.5–9.0 M. It is postulated that the reaction between diformylhydrazine and nitric acid involves their molecular undissociated forms. The activation energy of the reaction is 116 kJ/mol in temperature range 70–90°С.