Articles | Volume 19, issue 22
Atmos. Chem. Phys., 19, 14195–14209, 2019
https://doi.org/10.5194/acp-19-14195-2019
Atmos. Chem. Phys., 19, 14195–14209, 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 et al.

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Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Avenati, M. and Vogel, P.: Face selectivity of the Diels-Alder additions of 2-substituted 5,6-bis((E)-chloromethylidene)Bicyclo[2.2.2]Octanes, Helv. Chim. Acta., 65, 204–216, https://doi.org/10.1002/hlca.19820650119, 1982. 
Birdsall, A. W. and Elrod, M. J.: Comprehensive NO-dependent study of the products of the oxidation of atmospherically relevant aromatic compounds, J. Phys. Chem. A, 115, 5397–5407, https://doi.org/10.1021/jp2010327, 2011. 
Birdsall, A. W., Krieger, U. K., and Keutsch, F. N.: Electrodynamic balance–mass spectrometry of single particles as a new platform for atmospheric chemistry research, Atmos. Meas. Tech., 11, 33–47, https://doi.org/10.5194/amt-11-33-2018, 2018. 
Birdsall, A. W.: pyvap: Kinetic model of particle evaporation, available at: https://github.com/awbirdsall/pyvap, last access: 6 October 2019. 
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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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