Articles | Volume 18, issue 10
https://doi.org/10.5194/acp-18-7057-2018
https://doi.org/10.5194/acp-18-7057-2018
Research article
 | 
23 May 2018
Research article |  | 23 May 2018

Ice nucleation activity of silicates and aluminosilicates in pure water and aqueous solutions – Part 1: The K-feldspar microcline

Anand Kumar, Claudia Marcolli, Beiping Luo, and Thomas Peter

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Cited articles

Abdelmonem, A., Backus, E. H. G., Hoffmann, N., Sánchez, M. A., Cyran, J. D., Kiselev, A., and Bonn, M.: Surface-charge-induced orientation of interfacial water suppresses heterogeneous ice nucleation on a-alumina (0001), Atmos. Chem. Phys., 17, 7827–7837, https://doi.org/10.5194/acp-17-7827-2017, 2017. 
Abramov, A. A.: Flotation methods in mineral processing, Nedra Publishing House, Moscow, 1993 (in Russian). 
Alekseyev, V. A., Medvedeva, L. S., Prisyagina, N. I., Meshalkin, S. S., and Balabin, A. I.: Change in the dissolution rates of alkali feldspars as a result of secondary mineral precipitation and approach to equilibrium, Geochim. Cosmochim. Ac., 61, 1125–1142, https://doi.org/10.1016/S0016-7037(96)00405-X, 1997. 
Anim-Danso, E., Zhang, Y., and Dhinojwala, A.: Surface charge affects the structure of interfacial ice, J. Phys. Chem. C, 120, 3741–3748, https://doi.org/10.1021/acs.jpcc.5b08371, 2016. 
Ansmann, A., Mattis, I., Müller, D., Wandinger, U., Radlach, M., Althausen, D., and Damoah, R.: Ice formation in Saharan dust over central europe observed with temperature/humidity/aerosol raman lidar, J. Geophys. Res.-Atmos., 110, D18S12, https://doi.org/10.1029/2004JD005000, 2005. 
Short summary
We have performed immersion freezing experiments with microcline (most active ice nucleation, IN, K-feldspar polymorph) and investigated the effect of ammonium and non-ammonium solutes on its IN efficiency. We report increased IN efficiency of microcline in dilute ammonia- or ammonium-containing solutions, which opens up a pathway for condensation freezing occurring at a warmer temperature than immersion freezing.
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