Articles | Volume 20, issue 9
https://doi.org/10.5194/acp-20-5513-2020
https://doi.org/10.5194/acp-20-5513-2020
Research article
 | 
12 May 2020
Research article |  | 12 May 2020

Partitioning of hydrogen peroxide in gas-liquid and gas-aerosol phases

Xiaoning Xuan, Zhongming Chen, Yiwei Gong, Hengqing Shen, and Shiyi Chen

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In this study, we found that the effective field-derived Henry's law constant for the ground rainwater and the gas-phase H2O2 was about 2.5 times that of the theoretical value, and the effective gas–particle partitioning coefficient for the aerosol particle and the gas-phase H2O2 was 4 orders of magnitude higher than the theoretical one. We suggested the missing source of H2O2 in the particulate phase, e.g. the contribution from the decomposition/hydrolysis of organic peroxides.
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