RESOURCES | technical resources

OLI versus PHREEQC

The mathematical behavior of electrolytes is challenging. Composition changes, hydrate formation, and phase transformation can lead to solution properties that are not easily predicted. A quick look at Figure 1 illustrates this. As the sulfuric acid concentration increases (x-axis), the form of the ammonium sulfate solid changes, and its solubility shifts dramatically. Simulating such behavior using PHREEQ is simply not possible.