Articles | Volume 17, issue 10
Atmos. Chem. Phys., 17, 6323–6339, 2017
https://doi.org/10.5194/acp-17-6323-2017
Atmos. Chem. Phys., 17, 6323–6339, 2017
https://doi.org/10.5194/acp-17-6323-2017

Research article 23 May 2017

Research article | 23 May 2017

Heterogeneous uptake of ammonia and dimethylamine into sulfuric and oxalic acid particles

Meike Sauerwein and Chak Keung Chan

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Latest update: 30 Nov 2021
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Short summary
Heterogeneous uptake is one of the mechanisms influencing the amounts of alkylamines and ammonia in atmospheric particles. The present study investigates the simultaneous uptake of dimethylamine and ammonia at different gas molar ratios into sulfuric and oxalic acid particles at low and high relative humidity. Results showed that the particulate dimethylaminium/ammonium molar ratios changed substantially during the uptake process, depending on the extent of neutralisation and phase state.
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