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Journal of Atmospheric Chemistry

, Volume 13, Issue 3, pp 301–311 | Cite as

Relative-rate study of the gas-phase reaction of hydroxy radicals with difunctional organic nitrates at 298 K and atmospheric pressure

  • T. Zhu
  • I. Barnes
  • K. H. Becker
Article

Abstract

Rate coefficients for the reactions of difunctional nitrates with atmospherically important OH radicals are not currently available in the literature. This study represents the first determination of rate coefficients for a number of C(3) and C(4) carbonyl nitrates and dinitrates with OH radicals in a 38 l glass reaction chamber at 1000 mbar total pressure of synthetic air by 298±2 K using a relative kinetic technique.

The following rate coefficients (in units of 10-12 cm3 molecule-1 s-1) were obtained: 1,2-propandiol dinitrate, <0.31; 1,2-butandiol dinitrate, 1.70±0.32; 2,3-butandiol dinitrate, 1.07±0.26; α-nitrooxyacetone, <0.43; 1-nitrooxy-2-butanone, 0.91±0.16; 3-nitrooxy-2-butanone, 1.27±0.14; 1,4-dinitrooxy-2-butene, 15.10±1.45; 3,4-dinitrooxy-1-butene, 10.10±0.50.

The possible importance of reaction of OH as an atmospheric sink for the compounds compared to other loss processes is considered.

Key words

Organic nitrates kinetics OH radical atmosphere 

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • T. Zhu
    • 1
  • I. Barnes
    • 1
  • K. H. Becker
    • 1
  1. 1.Physikalische Chemie/Fachbereich 9Bergische Universität-GH WuppertalWuppertal 1Germany

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