Articles | Volume 16, issue 4
Atmos. Chem. Phys., 16, 2689–2702, 2016
https://doi.org/10.5194/acp-16-2689-2016
Atmos. Chem. Phys., 16, 2689–2702, 2016
https://doi.org/10.5194/acp-16-2689-2016

Research article 03 Mar 2016

Research article | 03 Mar 2016

A new source of methylglyoxal in the aqueous phase

Maria Rodigast et al.

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Short summary
The study highlights methyl ethyl ketone as a new and unknown source for methylglyoxal in the aqueous phase that is important for aqueous secondary organic aerosol (aqSOA) formation. Besides 2,3-butanedione (29.5 %) and hydroxyacetone (3.0 %), methylglyoxal was formed with a molar yield of 9.5 %. According to the detected products a reaction mechanism was developed and evaluated. The comparison of the model and experimental data showed excellent agreements, in particular for methylglyoxal.
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