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Nitrogen isotope exchange between nitric oxide and nitric acid

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Abstract

The rate of nitrogen isotope exchange between NO and HNO3 has been measured as a function of nitric acid concentration of 1.5–4M·1−1. The exchange rate law is shown to beR=k[HNO3]2[N2O3] and the measured activation energy isE=67.78kJ ·M−1 (16.2 kcal·M−1). It is concluded that N2O3 participates in15N/14N exchange between NO and HNO3 at nitric acid concentrations higher than 1.5M·1−1.

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Authors and Affiliations

  1. Institute of Isotopic and Molecular Technology, P.O. Box 700, 3400, Cluj-Napoca, (Romania)

    D. Axente, M. Abrudean & A. Bâldea

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  1. D. Axente
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  2. M. Abrudean
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  3. A. Bâldea
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Axente, D., Abrudean, M. & Bâldea, A. Nitrogen isotope exchange between nitric oxide and nitric acid. Journal of Radioanalytical and Nuclear Chemistry, Articles 207, 163–170 (1996). https://doi.org/10.1007/BF02036536

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  • DOI: https://doi.org/10.1007/BF02036536

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