Articles | Volume 17, issue 10
Atmos. Chem. Phys., 17, 6291–6303, 2017
https://doi.org/10.5194/acp-17-6291-2017
Atmos. Chem. Phys., 17, 6291–6303, 2017
https://doi.org/10.5194/acp-17-6291-2017

Research article 23 May 2017

Research article | 23 May 2017

Evaporating brine from frost flowers with electron microscopy and implications for atmospheric chemistry and sea-salt aerosol formation

Xin Yang et al.

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AR by Dominik Heger on behalf of the Authors (29 Mar 2017)  Author's response    Manuscript
ED: Publish as is (18 Apr 2017) by Thorsten Bartels-Rausch
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Short summary
A unique environmental electron microscope was used for monitoring the evaporation of salty frost flowers. We observe a cohesive villous brine surface layer facilitating the formation of NaCl microcrystals at temperatures below −10°C as the brine oversaturation is achieved. This finding confirms the increased surface area and thus also the enhanced heterogeneous reactivity; however, no support for the easiness of fragmentation to produce aerosols can be provided.
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