Figure 1

Dissolution kinetics of ferrihydrite for various oxalate/Fe ratios at pH 4.5. The amount of dissolved Fe was obtained from the Fe concentration in the 0.22 μm filtrate and the solution volume.
Dissolution kinetics of ferrihydrite for various oxalate/Fe ratios at pH 4.5. The amount of dissolved Fe was obtained from the Fe concentration in the 0.22 μm filtrate and the solution volume.