Evaporation of sulfate aerosols at low relative humidity

Georgios Tsagkogeorgas; Pontus Roldin; Jonathan Duplissy; Linda Rondo; Jasmin Tröstl; Jay G. Slowik; Sebastian Ehrhart; Alessandro Franchin; Andreas Kürten; Antonio Amorim; Federico Bianchi; Jasper Kirkby; Tuukka Petäjä; Urs Baltensperger; Michael Boy; Joachim Curtius; Richard C. Flagan; Markku Kulmala; Neil M. Donahue; Frank Stratmann

doi:10.5194/acp-17-8923-2017

Evaporation of sulfate aerosols at low relative humidity

Georgios Tsagkogeorgas, Pontus Roldin, Jonathan Duplissy, Linda Rondo, Jasmin Tröstl, Jay G. Slowik, Sebastian Ehrhart, Alessandro Franchin, Andreas Kürten, Antonio Amorim, Federico Bianchi, Jasper Kirkby, Tuukka Petäjä, Urs Baltensperger, Michael Boy, Joachim Curtius, Richard C. Flagan, Markku Kulmala, Neil M. Donahue, Frank Stratmann

Experimental Science Section

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Evaporation of sulfuric acid from particles can be important in the atmospheres of Earth and Venus. However, the equilibrium constant for the dissociation of H2SO4 to bisulfate ions, which is the one of the fundamental parameters controlling the evaporation of sulfur particles, is not well constrained. In this study we explore the volatility of sulfate particles at very low relative humidity. We measured the evaporation of sulfur particles versus temperature and relative humidity in the CLOUD chamber at CERN. We modelled the observed sulfur particle shrinkage with the ADCHAM model. Based on our model results, we conclude that the sulfur particle shrinkage is mainly governed by H₂SO₄ and potentially to some extent by SO₃ evaporation. We found that the equilibrium constants for the dissociation of H₂SO₄ to HSO₄-(KH₂SO₄) and the dehydration of H₂SO₄ to SO₃ (KSO₃) are KH₂SO₄ Combining double low line 2^-4 × 109 kg^-1 and KSO₃ ≥ 1.4 × g 1010 at 288.8± 5K.

Original language	English
Pages (from-to)	8923-8938
Number of pages	16
Journal	Atmospheric Chemistry and Physics
Volume	17
Issue number	14
DOIs	https://doi.org/10.5194/acp-17-8923-2017
State	Published - Jul 25 2017

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Tsagkogeorgas, G., Roldin, P., Duplissy, J., Rondo, L., Tröstl, J., Slowik, J. G., Ehrhart, S., Franchin, A., Kürten, A., Amorim, A., Bianchi, F., Kirkby, J., Petäjä, T., Baltensperger, U., Boy, M., Curtius, J., Flagan, R. C., Kulmala, M., Donahue, N. M., & Stratmann, F. (2017). Evaporation of sulfate aerosols at low relative humidity. Atmospheric Chemistry and Physics, 17(14), 8923-8938. https://doi.org/10.5194/acp-17-8923-2017

@article{46ff6d137ac34790b2df0cc5038eb855,

title = "Evaporation of sulfate aerosols at low relative humidity",

abstract = "Evaporation of sulfuric acid from particles can be important in the atmospheres of Earth and Venus. However, the equilibrium constant for the dissociation of H2SO4 to bisulfate ions, which is the one of the fundamental parameters controlling the evaporation of sulfur particles, is not well constrained. In this study we explore the volatility of sulfate particles at very low relative humidity. We measured the evaporation of sulfur particles versus temperature and relative humidity in the CLOUD chamber at CERN. We modelled the observed sulfur particle shrinkage with the ADCHAM model. Based on our model results, we conclude that the sulfur particle shrinkage is mainly governed by H2SO4 and potentially to some extent by SO3 evaporation. We found that the equilibrium constants for the dissociation of H2SO4 to HSO4-(KH2SO4) and the dehydration of H2SO4 to SO3 (KSO3) are KH2SO4 Combining double low line 2-4 × 109 kg-1 and KSO3 ≥ 1.4 × g 1010 at 288.8± 5K.",

author = "Georgios Tsagkogeorgas and Pontus Roldin and Jonathan Duplissy and Linda Rondo and Jasmin Tr{\"o}stl and Slowik, \{Jay G.\} and Sebastian Ehrhart and Alessandro Franchin and Andreas K{\"u}rten and Antonio Amorim and Federico Bianchi and Jasper Kirkby and Tuukka Pet{\"a}j{\"a} and Urs Baltensperger and Michael Boy and Joachim Curtius and Flagan, \{Richard C.\} and Markku Kulmala and Donahue, \{Neil M.\} and Frank Stratmann",

note = "Publisher Copyright: {\textcopyright} 2017 Author(s).",

year = "2017",

month = jul,

day = "25",

doi = "10.5194/acp-17-8923-2017",

language = "English",

volume = "17",

pages = "8923--8938",

journal = "Atmospheric Chemistry and Physics",

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Tsagkogeorgas, G, Roldin, P, Duplissy, J, Rondo, L, Tröstl, J, Slowik, JG, Ehrhart, S, Franchin, A, Kürten, A, Amorim, A, Bianchi, F, Kirkby, J, Petäjä, T, Baltensperger, U, Boy, M, Curtius, J, Flagan, RC, Kulmala, M, Donahue, NM & Stratmann, F 2017, 'Evaporation of sulfate aerosols at low relative humidity', Atmospheric Chemistry and Physics, vol. 17, no. 14, pp. 8923-8938. https://doi.org/10.5194/acp-17-8923-2017

TY - JOUR

T1 - Evaporation of sulfate aerosols at low relative humidity

AU - Tsagkogeorgas, Georgios

AU - Roldin, Pontus

AU - Duplissy, Jonathan

AU - Rondo, Linda

AU - Tröstl, Jasmin

AU - Slowik, Jay G.

AU - Ehrhart, Sebastian

AU - Franchin, Alessandro

AU - Kürten, Andreas

AU - Amorim, Antonio

AU - Bianchi, Federico

AU - Kirkby, Jasper

AU - Petäjä, Tuukka

AU - Baltensperger, Urs

AU - Boy, Michael

AU - Curtius, Joachim

AU - Flagan, Richard C.

AU - Kulmala, Markku

AU - Donahue, Neil M.

AU - Stratmann, Frank

PY - 2017/7/25

Y1 - 2017/7/25

N2 - Evaporation of sulfuric acid from particles can be important in the atmospheres of Earth and Venus. However, the equilibrium constant for the dissociation of H2SO4 to bisulfate ions, which is the one of the fundamental parameters controlling the evaporation of sulfur particles, is not well constrained. In this study we explore the volatility of sulfate particles at very low relative humidity. We measured the evaporation of sulfur particles versus temperature and relative humidity in the CLOUD chamber at CERN. We modelled the observed sulfur particle shrinkage with the ADCHAM model. Based on our model results, we conclude that the sulfur particle shrinkage is mainly governed by H2SO4 and potentially to some extent by SO3 evaporation. We found that the equilibrium constants for the dissociation of H2SO4 to HSO4-(KH2SO4) and the dehydration of H2SO4 to SO3 (KSO3) are KH2SO4 Combining double low line 2-4 × 109 kg-1 and KSO3 ≥ 1.4 × g 1010 at 288.8± 5K.

AB - Evaporation of sulfuric acid from particles can be important in the atmospheres of Earth and Venus. However, the equilibrium constant for the dissociation of H2SO4 to bisulfate ions, which is the one of the fundamental parameters controlling the evaporation of sulfur particles, is not well constrained. In this study we explore the volatility of sulfate particles at very low relative humidity. We measured the evaporation of sulfur particles versus temperature and relative humidity in the CLOUD chamber at CERN. We modelled the observed sulfur particle shrinkage with the ADCHAM model. Based on our model results, we conclude that the sulfur particle shrinkage is mainly governed by H2SO4 and potentially to some extent by SO3 evaporation. We found that the equilibrium constants for the dissociation of H2SO4 to HSO4-(KH2SO4) and the dehydration of H2SO4 to SO3 (KSO3) are KH2SO4 Combining double low line 2-4 × 109 kg-1 and KSO3 ≥ 1.4 × g 1010 at 288.8± 5K.

UR - https://www.scopus.com/pages/publications/85026241998

U2 - 10.5194/acp-17-8923-2017

DO - 10.5194/acp-17-8923-2017

M3 - Article

AN - SCOPUS:85026241998

SN - 1680-7316

VL - 17

SP - 8923

EP - 8938

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

IS - 14

ER -

Evaporation of sulfate aerosols at low relative humidity

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