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Cloud droplet activation and surface tension of mixtures of slightly soluble organics and inorganic salt

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  • S. Henning, University of Copenhagen
  • ,
  • Torben Rosenørn, Institut for Læring og Filosofi, Denmark
  • B. D'Anna, University of Oslo
  • ,
  • A.A. Gola, Wroclaw Medical University
  • ,
  • B. Svenningsson, University of Copenhagen
  • ,
  • M. Bilde
Critical supersaturations for internally mixed particles of adipic acid, succinic acid and sodium chloride were determined experimentally for dry particles sizes in the range 40-130 nm. Surface tensions of aqueous solutions of the dicarboxylic acids and sodium chloride corresponding to concentrations at activation were measured and parameterized as a function of carbon content. The activation of solid particles as well as solution droplets were studied and particle phase was found to be important for the critical supersaturation. Experimental data were modelled using Köhler theory modified to account for limited solubility and surface tension lowering. European Geosciences Union
Original languageEnglish
JournalAtmospheric Chemistry and Physics
Pages (from-to)575-582
Number of pages8
Publication statusPublished - 2005
Externally publishedYes

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