Articles | Volume 20, issue 5
Atmos. Chem. Phys., 20, 2987–3008, 2020
https://doi.org/10.5194/acp-20-2987-2020
Atmos. Chem. Phys., 20, 2987–3008, 2020
https://doi.org/10.5194/acp-20-2987-2020

Research article 12 Mar 2020

Research article | 12 Mar 2020

A predictive group-contribution model for the viscosity of aqueous organic aerosol

Natalie R. Gervasi et al.

Data sets

AIOMFAC-web v2.31 – Public model code repository A. Zuend and N. R. Gervasi https://github.com/andizuend/AIOMFAC

AIOMFAC-web website and online mode A. Zuend, N. Levac, and J. H. Seinfeld https://aiomfac.lab.mcgill.ca/index.html

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Short summary
Organic aerosols have been shown to exist often in a semi-solid or amorphous, glassy state. Highly viscous particles behave differently than their well-mixed liquid analogues with consequences for a variety of aerosol processes. Here, we introduce a new predictive mixture viscosity model called AIOMFAC-VISC. It enables us to predict the viscosity of aqueous organic mixtures as a function of temperature and chemical composition, covering the full range of liquid, semi-solid, and glassy states.
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