The impact of (bio-)organic substances on the ice nucleation activity of the K-feldspar microcline in aqueous solutions

Klumpp, Kristian; Marcolli, Claudia; Peter, Thomas

doi:https://doi.org/10.5194/acp-22-3655-2022

Articles | Volume 22, issue 5

https://doi.org/10.5194/acp-22-3655-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-3655-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 5

Research article

|

17 Mar 2022

Research article |

| 17 Mar 2022

The impact of (bio-)organic substances on the ice nucleation activity of the K-feldspar microcline in aqueous solutions

Kristian Klumpp, Claudia Marcolli, and Thomas Peter

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https://doi.org/10.5194/acp-22-3655-2022-supplement

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The impact of (bio-)organic substances on the ice nucleation activi-ty of the K-feldspar microcline in aqueous solutions Kristian Klumpp https://doi.org/10.3929/ethz-b-000530486

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Short summary

Surface interactions with solutes can significantly alter the ice nucleation activity of mineral dust. Past studies revealed the sensitivity of microcline, one of the most ice-active types of dust in the atmosphere, to inorganic solutes. This study focuses on the interaction of microcline with bio-organic substances and the resulting effects on its ice nucleation activity. We observe strongly hampered ice nucleation activity due to the presence of carboxylic and amino acids but not for polyols.