Formation and transformation of amorphous magnesium carbonate in aqueous solution with various Mg/CO₃ ratios

Abstract

Precipitation experiments have been conducted in order to understand the formation process of magnesium carbonates in aqueous solution with various Mg/CO₃ ratios. Amorphous magnesium carbonate formed from MgCO₃ aqueous solution and transformed into nesquehonite (MgCO₃・3H₂O), one of the hydrated magnesium carbonates. Hydration /dehydration of ions may play an important role in these formation process.