Articles | Volume 21, issue 11
Atmos. Chem. Phys., 21, 8809–8821, 2021
https://doi.org/10.5194/acp-21-8809-2021
Atmos. Chem. Phys., 21, 8809–8821, 2021
https://doi.org/10.5194/acp-21-8809-2021

Research article 10 Jun 2021

Research article | 10 Jun 2021

Revisiting the reaction of dicarbonyls in aerosol proxy solutions containing ammonia: the case of butenedial

Jack C. Hensley et al.

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Cited articles

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Aschmann, S. M., Nishino, N., Arey, J., and Atkinson, R.: Kinetics of the Reactions of OH Radicals with 2- and 3-Methylfuran, 2,3- and 2,5-Dimethylfuran, and E - and Z -3-Hexene-2,5-dione, and Products of OH + 2,5-Dimethylfuran, Environ. Sci. Technol., 45, 1859–1865, https://doi.org/10.1021/es103207k, 2011. 
Aschmann, S. M., Nishino, N., Arey, J., and Atkinson, R.: Products of the OH Radical-Initiated Reactions of Furan, 2- and 3-Methylfuran, and 2,3- and 2,5-Dimethylfuran in the Presence of NO, J. Phys. Chem. A, 118, 457–466, https://doi.org/10.1021/jp410345k, 2014. 
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We measured reactions of butenedial, an atmospheric dicarbonyl, in aqueous mixtures that mimic the conditions of aerosol particles. Major reaction products and rates were determined to assess their atmospheric relevance and to compare against other well-studied dicarbonyls. We suggest that the structure of the carbon backbone, not just the dominant functional group, plays a major role in dicarbonyl reactivity, influencing the fate and ability of dicarbonyls to produce brown carbon.
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