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Contributions to the degenerated branching mechanism of the thermal decomposition of ammonia

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Abstract

By continuing our studies on the reaction kinetics and mechanism of ammonia thermal decomposition, new evidences are brought about supporting the indirectly branched chain mechanism advanced previously. The dependence of the induction period of the hydrogen formation as a reaction final product on the maximum concentration of hydrazine as the reaction molecular intermediate evidences indirectly branched chain mechanism affording preponderantly the hydrogen formation from hydrazine. The branching factor value of 0.00136 s−1 was found by means of three laws specific to the reaction developing according to three rules specific to the degenerated branching. This value indicates degenerated branching occurring rather as a scarce event according to literature data where this factor is shown to be between 0.00016 and 0.01666 s−1.

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Authors and Affiliations

  1. Faculty of Chemistry, “Al. I. Cuza” University, Iassy, Romania

    L. Odochian & C. Moldoveanu

  2. Regional Centre for Public Health, Iassy, Romania

    D. Dirtu

  3. Faculty of Chemical Engineering, “Gh. Asachi” University, Iassy, Romania

    A. M. Mocanu

Authors
  1. L. Odochian
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  2. D. Dirtu
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  3. A. M. Mocanu
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  4. C. Moldoveanu
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Correspondence to L. Odochian.

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Odochian, L., Dirtu, D., Mocanu, A.M. et al. Contributions to the degenerated branching mechanism of the thermal decomposition of ammonia. Kinet Catal 52, 480–486 (2011). https://doi.org/10.1134/S0023158411040112

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