Studies of single aerosol particles containing malonic acid, glutaric acid, and their mixtures with sodium chloride. I. Hygroscopic growth

Francis D. Pope; Ben J. Dennis-Smither; Paul T. Griffiths; SL Clegg; R. Anthony Cox

doi:10.1021/jp100059k

Studies of single aerosol particles containing malonic acid, glutaric acid, and their mixtures with sodium chloride. I. Hygroscopic growth

Francis D. Pope, Ben J. Dennis-Smither, Paul T. Griffiths, SL Clegg, R. Anthony Cox

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

85 Citations (Scopus)

Abstract

We describe a newly constructed electrodynamic balance with which to measure the relative mass of single aerosol particles at varying relative humidity. Measurements of changing mass with respect to the relative humidity allow mass (m) growth factors (maqueous/mdry) and diameter (d) growth factors (daqueous/ddry) of the aerosol to be determined. Four aerosol types were investigated: malonic acid, glutaric acid, mixtures of malonic acid and sodium chloride, and mixtures of glutaric acid and sodium chloride. The mass growth factors of the malonic acid and glutaric acid aqueous phase aerosols, at 85% relative humidity, were 2.11 ± 0.08 and 1.73 ± 0.19, respectively. The mass growth factors of the mixed organic/inorganic aerosols are dependent upon the molar fraction of the individual components. Results are compared with previous laboratory determinations and theoretical predictions.

Original language	English
Pages (from-to)	5335-5341
Number of pages	7
Journal	Journal of Physical Chemistry A
Volume	114
Issue number	16
DOIs	https://doi.org/10.1021/jp100059k
Publication status	Published - 2010

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10.1021/jp100059k

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title = "Studies of single aerosol particles containing malonic acid, glutaric acid, and their mixtures with sodium chloride. I. Hygroscopic growth",

abstract = "We describe a newly constructed electrodynamic balance with which to measure the relative mass of single aerosol particles at varying relative humidity. Measurements of changing mass with respect to the relative humidity allow mass (m) growth factors (maqueous/mdry) and diameter (d) growth factors (daqueous/ddry) of the aerosol to be determined. Four aerosol types were investigated: malonic acid, glutaric acid, mixtures of malonic acid and sodium chloride, and mixtures of glutaric acid and sodium chloride. The mass growth factors of the malonic acid and glutaric acid aqueous phase aerosols, at 85% relative humidity, were 2.11 ± 0.08 and 1.73 ± 0.19, respectively. The mass growth factors of the mixed organic/inorganic aerosols are dependent upon the molar fraction of the individual components. Results are compared with previous laboratory determinations and theoretical predictions.",

author = "Pope, {Francis D.} and Dennis-Smither, {Ben J.} and Griffiths, {Paul T.} and SL Clegg and Cox, {R. Anthony}",

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T1 - Studies of single aerosol particles containing malonic acid, glutaric acid, and their mixtures with sodium chloride. I. Hygroscopic growth

AU - Pope, Francis D.

AU - Dennis-Smither, Ben J.

AU - Griffiths, Paul T.

AU - Clegg, SL

AU - Cox, R. Anthony

PY - 2010

Y1 - 2010

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AB - We describe a newly constructed electrodynamic balance with which to measure the relative mass of single aerosol particles at varying relative humidity. Measurements of changing mass with respect to the relative humidity allow mass (m) growth factors (maqueous/mdry) and diameter (d) growth factors (daqueous/ddry) of the aerosol to be determined. Four aerosol types were investigated: malonic acid, glutaric acid, mixtures of malonic acid and sodium chloride, and mixtures of glutaric acid and sodium chloride. The mass growth factors of the malonic acid and glutaric acid aqueous phase aerosols, at 85% relative humidity, were 2.11 ± 0.08 and 1.73 ± 0.19, respectively. The mass growth factors of the mixed organic/inorganic aerosols are dependent upon the molar fraction of the individual components. Results are compared with previous laboratory determinations and theoretical predictions.

U2 - 10.1021/jp100059k

DO - 10.1021/jp100059k

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VL - 114

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EP - 5341

JO - The Journal of Physical Chemistry A

JF - The Journal of Physical Chemistry A

SN - 1089-5639

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