Fig. 3
From: Low temperature carbonation and CO2 mineral trapping in altered hydrotalcite-rich ultrmafic rocks
Photographs of batch reactor showing the pH changes throughout the experiment from acidic at the beginning (a), to slightly acidic after 3 days (b), to alkaline after 7 days (c), and to hyper-alkaline after 14 days (d). Precipitation of white crystals at the end of the experiment (d).
