Articles | Volume 16, issue 18
Atmos. Chem. Phys., 16, 11937–11960, 2016
https://doi.org/10.5194/acp-16-11937-2016
Atmos. Chem. Phys., 16, 11937–11960, 2016
https://doi.org/10.5194/acp-16-11937-2016

Research article 23 Sep 2016

Research article | 23 Sep 2016

Heterogeneous kinetics of H2O, HNO3 and HCl on HNO3 hydrates (α-NAT, β-NAT, NAD) in the range 175–200 K

Riccardo Iannarelli and Michel J. Rossi

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Multidiagnostic Observations on HCI and HNO₃ Hydrate Films in the Temperature Range 170-205 K: A Kinetic Study R. Iannarelli https://doi.org/10.3929/ethz-a-010220598

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Short summary
Both adsorption and evaporation kinetics of water, nitric acid and hydrochloric acid on nitric acid hydrates were measured under upper tropospheric/lower stratospheric conditions. The evaporative lifetimes of "contaminated" ice clouds are important parameters for heterogeneous processing controlling polar ozone in the winter/spring season ("ozone hole"). We measured both the adsorption and evaporation kinetics, resulting in the corresponding vapor pressure as a validity check of the results.
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