Alfisol, Item 007:

IExFit, version 3.4 Fit adsorption data based on ion exchange reaction models. Display solid & liquid & gas phase speciation diagrams as a funciton of pH & redox conditions.

Why models? Main Welcome Program Information Select File Control Center (CC) CC: Database

CC-1: Enter Ions Present CC-2: Enter Initial Conditions CC: Add Solids CC: Add Gases CC: Add Ion Adsorption Data CC: Add Ion-Exchange Model CC-3: Run Aqueous Speciation CC-3: Run Model Fit Optimization

Tab: Model Optimization Tab: Options Tab: f(pH) Mass Balance Tab: Adsorption Data Analysis Tab: f(pH) Adsorbed Tab: f(pH) Aqueous Tab: f(pH) Solids Tab: f(pH) Gases Tab: pe-pH Tab: Titration

Selecting A Data File

This window opens with the data file used most recently. It gives basic information about the file. Click "search" to change files. The IExFit default directory is located in the program's root directory. Click "Open" to view or edit the file. Click "Create New Exercise" to start fresh. Two options for selecting a data file are shown here: top version: normal view on first file opened. bottom version: view when adding files to an existing file.