Re-evaluation of the reaction rate coefficient of CH3Br + OH with implications for the atmospheric budget of methyl bromide
(2013) In Atmospheric Environment 80. p.70-74- Abstract
- The reaction rate coefficient k(CH3Br + OH) has been determined in the temperature range 298-373 K, using pulse radiolysis/UV kinetic spectroscopy, and at 298 K using a relative rate method. The Arrhenius expression obtained from a fit to the experimental results is (2.9 +/- 0.9) x 10(-12) exp(-(1230 +/- 125)/T) cm(3) molecule(-1) s(-1), which is greater than the expression currently recommended. The relative rate experiments give k(298 K) = (4.13 +/- 0.63) x 10(-14) cm(3) molecule(-1) s(-1). The results of the absolute and relative rate experiments indicate that the source budget of atmospheric CH3Br should be reinvestigated, as was recently done for CH3Cl. (C) 2013 Elsevier Ltd. All rights reserved.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4272731
- author
- Heimdal Nilsson, Elna LU ; Joelsson, L. M. T. ; Heimdal, J. ; Johnson, M. S. and Nielsen, O. J.
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Methyl bromide, Atmospheric chemistry, Reaction kinetics
- in
- Atmospheric Environment
- volume
- 80
- pages
- 70 - 74
- publisher
- Elsevier
- external identifiers
-
- wos:000328094800008
- scopus:84883008935
- ISSN
- 1352-2310
- DOI
- 10.1016/j.atmosenv.2013.07.046
- language
- English
- LU publication?
- yes
- id
- 0fe84c15-57b0-446f-8f9e-184a7e9eb4e8 (old id 4272731)
- date added to LUP
- 2016-04-01 13:04:39
- date last changed
- 2022-03-29 05:23:13
@article{0fe84c15-57b0-446f-8f9e-184a7e9eb4e8, abstract = {{The reaction rate coefficient k(CH3Br + OH) has been determined in the temperature range 298-373 K, using pulse radiolysis/UV kinetic spectroscopy, and at 298 K using a relative rate method. The Arrhenius expression obtained from a fit to the experimental results is (2.9 +/- 0.9) x 10(-12) exp(-(1230 +/- 125)/T) cm(3) molecule(-1) s(-1), which is greater than the expression currently recommended. The relative rate experiments give k(298 K) = (4.13 +/- 0.63) x 10(-14) cm(3) molecule(-1) s(-1). The results of the absolute and relative rate experiments indicate that the source budget of atmospheric CH3Br should be reinvestigated, as was recently done for CH3Cl. (C) 2013 Elsevier Ltd. All rights reserved.}}, author = {{Heimdal Nilsson, Elna and Joelsson, L. M. T. and Heimdal, J. and Johnson, M. S. and Nielsen, O. J.}}, issn = {{1352-2310}}, keywords = {{Methyl bromide; Atmospheric chemistry; Reaction kinetics}}, language = {{eng}}, pages = {{70--74}}, publisher = {{Elsevier}}, series = {{Atmospheric Environment}}, title = {{Re-evaluation of the reaction rate coefficient of CH3Br + OH with implications for the atmospheric budget of methyl bromide}}, url = {{http://dx.doi.org/10.1016/j.atmosenv.2013.07.046}}, doi = {{10.1016/j.atmosenv.2013.07.046}}, volume = {{80}}, year = {{2013}}, }