Upper limits for the rate coefficients for reactions of BrO with formaldehyde and HBr

Authors
Orlando, JJ Ramacher, B Tyndall, GS
Citation
Jj. Orlando et al., Upper limits for the rate coefficients for reactions of BrO with formaldehyde and HBr, GEOPHYS R L, 27(17), 2000, pp. 2633-2636
Citations number
26
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL RESEARCH LETTERS
ISSN journal
00948276 → ACNP
Volume
27
Issue
17
Year of publication
2000
Pages
2633 - 2636
Database
ISI
SICI code
0094-8276(20000901)27:17<2633:ULFTRC>2.0.ZU;2-A
Abstract
The reactions of the BrO radical with hydrogen bromide, BrO + HBr --> HOBr + Br (R4) and with HCHO, BrO + HCHO --> HOBr + HCO (R5) have been studied a t 298 K, I atm. pressure in an environmental chamber. No conclusive evidenc e for the occurrence of either reaction was found and upper limits for both reaction rate coefficients are reported (k(4), k(5) < 4 x 10(-15) cm(3) mo lecule(-1) s(-1)). These upper limits are about 4-5 times lower than recent estimates [Hansen el al., 1999ab].