Articles | Volume 19, issue 22
https://doi.org/10.5194/acp-19-14195-2019
https://doi.org/10.5194/acp-19-14195-2019
Research article
 | 
26 Nov 2019
Research article |  | 26 Nov 2019

Single-particle experiments measuring humidity and inorganic salt effects on gas-particle partitioning of butenedial

Adam W. Birdsall, Jack C. Hensley, Paige S. Kotowitz, Andrew J. Huisman, and Frank N. Keutsch

Model code and software

Kinetic model of particle evaporation Birdsall, 2019 https://github.com/awbirdsall/pyvap

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Short summary
We have measured the evaporation rates of butenedial, a four-carbon dialdehyde produced in the atmosphere, from individual levitated particles. Effective vapor pressures and Henry's law constants, which characterize the compound's gas-particle partitioning behavior, were determined. The important role of hydration reactions was observed under both dry and humid conditions, as well as a salting-out effect in the presence of sodium chloride or sodium sulfate.
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