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

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Author

Summary, in English

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 K¨ohler theory modified to account for limited solubility and surface tension lowering.

Publishing year

2005

Language

English

Pages

575-582

Publication/Series

Atmospheric Chemistry and Physics

Volume

5

Document type

Journal article

Publisher

Copernicus GmbH

Topic

  • Subatomic Physics
  • Physical Geography

Status

Published

Research group

  • Aerosol, Nuclear Physics

ISBN/ISSN/Other

  • ISSN: 1680-7324