Articles | Volume 18, issue 10
https://doi.org/10.5194/acp-18-7345-2018
https://doi.org/10.5194/acp-18-7345-2018
Research article
 | 
25 May 2018
Research article |  | 25 May 2018

Cloud condensation nuclei activity of CaCO3 particles with oleic acid and malonic acid coatings

Mingjin Wang, Tong Zhu, Defeng Zhao, Florian Rubach, Andreas Wahner, Astrid Kiendler-Scharr, and Thomas F. Mentel

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Status: closed
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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 Thomas Mentel on behalf of the Authors (27 Mar 2018)
ED: Reconsider after major revisions (28 Mar 2018) by Frank Keutsch
ED: Referee Nomination & Report Request started (29 Mar 2018) by Frank Keutsch
RR by Anonymous Referee #1 (09 Apr 2018)
RR by Anonymous Referee #2 (27 Apr 2018)
ED: Publish subject to technical corrections (27 Apr 2018) by Frank Keutsch
AR by Thomas Mentel on behalf of the Authors (04 May 2018)  Author's response   Manuscript 
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Short summary
Organic coatings modify hygroscopicity and CCN activation of mineral dust perticles. Small amounts of oleic acid coating (volume fraction (vf) ≤ 4.1 %) decreased the CCN activity of CaCO3 particles, while more oleic acid coating (vf ≥ 14.8 %) increased the CCN activity of CaCO3 particles, while malonic acid coating (vf = 0.4−42 %) even in smallest amounts increased the CCN activity of CaCO3 particles. Our laboratory results should also hold under conditions of the atmosphere.
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