Nitrogen isotope exchange between nitric oxide and nitric acid |
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| Authors: | D Axente M Abrudean A Bâldea |
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| Institution: | (1) Institute of Isotopic and Molecular Technology, P.O. Box 700, 3400 Cluj-Napoca, (Romania) |
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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=kHNO3]2N2O3] 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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