Heterogeneous uptake of ammonia and dimethylamine into sulfuric and oxalic acid particles

Sauerwein, Meike; Chan, Chak Keung

doi:https://doi.org/10.5194/acp-17-6323-2017

Articles | Volume 17, issue 10

https://doi.org/10.5194/acp-17-6323-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-6323-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 10

Research article

|

23 May 2017

Research article |

| 23 May 2017

Heterogeneous uptake of ammonia and dimethylamine into sulfuric and oxalic acid particles

Meike Sauerwein and Chak Keung Chan

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Final revised paper (published on 23 May 2017)
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Preprint (discussion started on 17 Nov 2016)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of Sauerwein and Chan, "Heterogeneous uptake of ...."', Anonymous Referee #1, 12 Dec 2016
- AC1: 'Response to Anonymous Referee #1', Meike Sauerwein, 23 Mar 2017
RC2: 'Review of Sauerwein and Chan', Anonymous Referee #2, 19 Jan 2017
- AC2: 'Response to Anonymous Referee #2', Meike Sauerwein, 23 Mar 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Meike Sauerwein on behalf of the Authors (23 Mar 2017) Author's response Manuscript

ED: Publish as is (03 Apr 2017) by Markus Ammann

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Short summary

Heterogeneous uptake is one of the mechanisms influencing the amounts of alkylamines and ammonia in atmospheric particles. The present study investigates the simultaneous uptake of dimethylamine and ammonia at different gas molar ratios into sulfuric and oxalic acid particles at low and high relative humidity. Results showed that the particulate dimethylaminium/ammonium molar ratios changed substantially during the uptake process, depending on the extent of neutralisation and phase state.