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RESEARCH PRODUCT

Water uptake and equilibrium sizes of aerosol particles at high relative humidities: Their dependence on the composition of the water-soluble material

Jürg Thudium

subject

ChemistryAnalytical chemistryfood and beveragesAtmospheric scienceshumanitiesAerosolGeophysicsWater solubleGeochemistry and PetrologyWater uptakeCloud condensation nucleiComposition (visual arts)Osmotic coefficientChemical compositionPhysics::Atmospheric and Oceanic Physics

description

Equilibrium water uptake and the sizes of atmospheric aerosol particles have for the first time been determined for high relative humidities, i.e., for humidities above 95 percent, as a function of the particles chemical composition. For that purpose a new treatment of the osmotic coefficient has been developed and experimentally confirmed. It is shown that the equilibrium water uptake and the equilibrium sizes of atmospheric aerosol particles at large relative humidities are significantly dependent on their chemical composition.

https://doi.org/10.1007/bf00878988