A community model for calculating gas/liquid/solid partitioning in aerosol systems containing inorganic and organic components and water, and solute and solvent activities in aqueous solutions and liquid mixtures.
Notice to Users: if you use results from the E-AIM models, please cite the papers describing the model and also this website giving the URL (http://www.aim.env.uea.ac.uk/aim/aim.php).
Welcome to the Extended AIM (E-AIM) site. Follow the links below to learn about the equilibrium thermodynamic models, and use them to solve a variety of different problems.
Model I: H+ - SO42− - NO3− - Cl− - Br− - H2O (<200 to 330 K). |
Model II: H+ - NH4+ - SO42− - NO3− - H2O (<200 to 330 K). |
Model III: H+ - NH4+ - Na+ - SO42− - NO3− - Cl− - H2O (at 298.15 K only). |
Model IV: H+ - NH4+ - Na+ - SO42− - NO3− - Cl− - H2O (≤263 to 330 K, depending on composition). |
H+ - NH4+ - Na+ - SO42− - NO3− - Cl− - H2O (150 to 323.15 K) |
H+ - NH4+ - Na+ - K+ - Mg2+ - Ca2+ - SO42− - NO3− - Cl− - Br− - OH− - CO32− - H2O (150 to 323.15 K) |
We gratefully acknowledge the participation of DDBST Software and Separation Technology GmbH, who provided the vapour pressure estimator for organic compounds. The site was built with assistance from ISInc Software Consulting.