Articles | Volume 11, issue 8
Atmos. Meas. Tech., 11, 4809–4822, 2018
https://doi.org/10.5194/amt-11-4809-2018
Atmos. Meas. Tech., 11, 4809–4822, 2018
https://doi.org/10.5194/amt-11-4809-2018
Research article
17 Aug 2018
Research article | 17 Aug 2018

Viscosity of erythritol and erythritol–water particles as a function of water activity: new results and an intercomparison of techniques for measuring the viscosity of particles

Yangxi Chu et al.

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Short summary
The viscosity of erythritol, a tetrol found in aerosol particles, is highly uncertain. To help resolve this uncertainty, we measured the viscosities of erythritol–water particles using rectangular-area fluorescence recovery after photobleaching and aerosol optical tweezers techniques. These results should help improve the understanding of the viscosity of secondary organic aerosol particles. In addition, we present an intercomparison of techniques for measuring the viscosity of particles.