Articles | Volume 19, issue 9
Atmos. Chem. Phys., 19, 6205–6215, 2019
https://doi.org/10.5194/acp-19-6205-2019
Atmos. Chem. Phys., 19, 6205–6215, 2019
https://doi.org/10.5194/acp-19-6205-2019

Research article 10 May 2019

Research article | 10 May 2019

UV spectroscopic determination of the chlorine monoxide (ClO) ∕ chlorine peroxide (ClOOCl) thermal equilibrium constant

J. Eric Klobas and David M. Wilmouth

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by J. Eric Klobas on behalf of the Authors (31 Jan 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (06 Feb 2019) by James B. Burkholder
AR by J. Eric Klobas on behalf of the Authors (19 Apr 2019)  Author's response    Manuscript
ED: Publish as is (24 Apr 2019) by James B. Burkholder

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by J. Eric Klobas on behalf of the Authors (07 May 2019)   Author's adjustment   Manuscript
EA: Adjustments approved (09 May 2019) by James B. Burkholder
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Short summary
The thermal equilibrium constant governing the partitioning of the chlorine monoxide radical (ClO) and its dimer, chlorine peroxide (ClOOCl), was measured by broadband UV spectroscopy in the temperature range of 228–301 K. Uncertainty in the value of this equilibrium constant produces significant uncertainty in model determinations of expected polar ozone loss extent. The key results of this study indicate that the currently recommended uncertainty for this reaction may be reduced.
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