Articles | Volume 15, issue 1
https://doi.org/10.5194/acp-15-447-2015
https://doi.org/10.5194/acp-15-447-2015
Research article
 | 
14 Jan 2015
Research article |  | 14 Jan 2015

Improved AIOMFAC model parameterisation of the temperature dependence of activity coefficients for aqueous organic mixtures

G. Ganbavale, A. Zuend, C. Marcolli, and T. Peter

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Short summary
This study presents a new, improved parameterisation of the temperature dependence of activity coefficients implemented in the AIOMFAC group-contribution model. The AIOMFAC model with the improved parameterisation is applicable for a large variety of aqueous organic as well as water-free organic solutions of relevance for atmospheric aerosols. The new model parameters were determined based on published and new thermodynamic equilibrium data covering a temperature range from ~190 to 440 K.
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