Accession Number:

ADA110835

Title:

Stratospheric Reactions of Peroxynitric Acid.

Descriptive Note:

Final rept. 29 Sep 78-31 Dec 80,

Corporate Author:

SRI INTERNATIONAL MENLO PARK CA

Report Date:

1981-04-23

Pagination or Media Count:

151.0

Abstract:

Both HO2 and NO2 play crucial roles in the chemistry of the upper atmosphere. For several years, these two species were thought to react via a radical disproportionation reaction, although it was suggested that a longer-lived complex could be formed according to reaction 1 HO2 NO2 M reversible reaction HOONO2 M. The importance of reaction 1 has recently been verified by direct observation of HO2NO2 by Fourier transform infrared spectroscopy. Moreover, the rate of reaction 1 has been measured, and its reverse reaction -1 has been studied. Also, RRKM theory has been applied to these data for reaction -1 so that its rate can be reliably estimated as a function of both temperature and pressure. In another publication, the effect of HO2NO2 on tropospheric photochemical smog chemistry was discussed.

Subject Categories:

  • Atmospheric Physics
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE