Articles | Volume 20, issue 19
Atmos. Chem. Phys., 20, 11263–11273, 2020
https://doi.org/10.5194/acp-20-11263-2020
Atmos. Chem. Phys., 20, 11263–11273, 2020
https://doi.org/10.5194/acp-20-11263-2020

Research article 02 Oct 2020

Research article | 02 Oct 2020

Liquid–liquid phase separation and morphologies in organic particles consisting of α-pinene and β-caryophyllene ozonolysis products and mixtures with commercially available organic compounds

Young-Chul Song 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

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Short summary
We report the liquid–liquid phase separation (LLPS) of organic aerosol consisting of α-pinene- and β-caryophyllene-derived ozonolysis products and commercial organic compounds. As compositional complexity increased from one to two organic species, LLPS occurred over a wider range of average O : C values (increasing from 0.44 to 0.67). These results provide further evidence that LLPS is likely frequent in organic aerosol particles in the troposphere, even in the absence of inorganic salt.
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