Model III:  H+ - NH4+ - Na+ - SO42− - NO3 - Cl - H2O, at 298.15 K

   1.  Simple (this page)            6.  Parametric, varying: (a) relative humidity, or total water
   2.  Comprehensive (b) chemical composition
   3.  Aqueous solution
   4.  Batch
   5.  Köhler curves

Simple Calculation

Here, the model determines the state of a system containing water, and two or more ions, at equilibrium with an atmosphere of known temperature and relative humidity. Solids are allowed to form, at the choice of the user, but partitioning of trace gases into the vapour phase is not enabled. Specify the problem in the input fields below.

Ambient Conditions

Temperature is fixed at 298.15 K.    Relative Humidity (0.1 - 1.0):

Ionic Composition in Moles

H+:      NH4+:     Na+:
SO42:      NO3:     Cl:

Other Chemical Components

The amounts of organic compounds present can be entered here. First, click the button to select compounds from the library or create new ones for this session.

Solid Phases

Check the boxes below to prevent the formation of selected solids, as many as desired. This enables the properties of metastable, supersaturated, aqueous aerosols to be investigated. (The default for each calculation is that all solids can form.)

Omit the following solids:

(NH4)2SO4 (NH4)3H(SO4)2 NH4HSO4
NH4NO3 NH4Cl 2NH4NO3 · (NH4)2SO4
3NH4NO3 · (NH4)2SO4 NH4NO3 · NH4HSO4 Na2SO4
Na2SO4 · 10H2O NaNO3 NaNO3 · Na2SO4 · H2O
NaCl Na3H(SO4)2 NaHSO4 · H2O
NaHSO4 NaH3(SO4)2 · H2O Na2SO4 · (NH4)2SO4 · 4H2O

To submit your calculation, click here: