Journal of Atmospheric Chemistry

, Volume 7, Issue 4, pp 409–419 | Cite as

Rate constant measurement for the reactions of OH and Cl with peroxyacetyl nitrate at 298 K

  • N. Tsalkani
  • A. Mellouki
  • G. Poulet
  • G. Toupance
  • G. Le Bras


The gas phase reactions of peroxyacetyl nitrate (PAN) with OH and Cl have been studied using the discharge-flow EPR method. The rate constants are found to be k3=(7.5±1.4)×10-14 and k4=(3.7±1.7)×10-13 cm3 molecule-1 s-1 at 298 K, respectively. These results confirm that the OH+PAN reaction will be the dominant sink of PAN in the middle and upper troposphere, whereas the reaction Cl+PAN will be negligible in contrast with previous estimations.

Key words

Reaction kinetics discharge flow rate constant PAN OH Cl 


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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • N. Tsalkani
    • 1
  • A. Mellouki
    • 2
  • G. Poulet
    • 2
  • G. Toupance
    • 1
  • G. Le Bras
    • 2
  1. 1.Laboratoire de Physico-Chimie de l'EnvironnementUniversité de Paris Val de MarneCreteil CédexFrance
  2. 2.Centre de Recherches sur la Chimie de la Combustion et des Hautes TempératuresCNRSOrléans Cédex 2France

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