Articles | Volume 20, issue 22
https://doi.org/10.5194/acp-20-14103-2020
https://doi.org/10.5194/acp-20-14103-2020
Research article
 | 
20 Nov 2020
Research article |  | 20 Nov 2020

Hygroscopic behavior of aerosols generated from solutions of 3-methyl-1,2,3-butanetricarboxylic acid, its sodium salts, and its mixtures with NaCl

Li Wu, Clara Becote, Sophie Sobanska, Pierre-Marie Flaud, Emilie Perraudin, Eric Villenave, Young-Chul Song, and Chul-Un Ro

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Latest update: 17 Sep 2025
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Short summary
MBTCA (3-methyl-1,2,3-butanetricarboxylic acid), a second-generation product of monoterpenes, is one of the most relevant tracer compounds for biogenic secondary organic aerosols (SOAs). Laboratory-generated, micrometer-sized, pure-MBTCA, mono-/di-/trisodium MBTCA salts and MBTCA–NaCl mixture aerosol particles were examined systematically to observe their hygroscopic behavior, and it was also observed that the monosodium MBTCA salt aerosols were formed through a reaction between MBTCA and NaCl.
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