Articles | Volume 15, issue 23
Research article
09 Dec 2015
Research article |  | 09 Dec 2015

Viscosity controls humidity dependence of N2O5 uptake to citric acid aerosol

G. Gržinić, T. Bartels-Rausch, T. Berkemeier, A. Türler, and M. Ammann


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 Markus Ammann on behalf of the Authors (12 Nov 2015)  Author's response
ED: Publish as is (23 Nov 2015) by Timothy Bertram
Short summary
The heterogeneous loss of dinitrogen pentoxide (N2O5) to citric acid aerosol, a proxy for highly oxygenated secondary organic aerosol, is shown to be substantially lower than to other aqueous organic aerosol proxies investigated previously. This is attributed to the widely changing viscosity within the atmospherically relevant humidity range. It may explain some of the unexpectedly low loss rates of N2O5 to aerosol particles derived from field studies.
Final-revised paper