Figure 1.

Powder X-ray diffraction patterns of filter-quenched solids collected from the reaction mixture after 30 s (green) and 6 min (blue); +30 s for filtration; SI vivianite is 10.19.

Powder X-ray diffraction patterns of filter-quenched solids collected from the reaction mixture after 30 s (green) and 6 min (blue); +30 s for filtration; SI vivianite is 10.19.