Crystallization kinetics of strontianite from Sr(HCO3)2 solutions

Phase transitions in the system MgO–CO2–H2O during CO2 degassing of Mg-bearing solutions

“…The first 16 min are defined by a steep decline in electrical conductivity in both experiments ( Fig. 2A), consistent with supersaturation, solid phase nucleation, and subsequent growth (e.g., Sö hnel and Mullin, 1978;Zeppenfeld, 2006). In the agitated setting, between ca 16 and 40 min, there is a second large decrease in electric conductivity, consistent with a second pulse of mineral formation.…”

“…Previous studies show that electric conductance provides a real-time semi-quantitative method for monitoring carbonate mineral precipitation events during CO 2 degassing from aqueous solutions (e.g., Zeppenfeld, 2006). In this study, it is assumed that the electric conductance is largely due to [Mg 2+ ], [HCO À 3 ] and [H + ].…”

Crystallization kinetics of Li2CO3 from LiHCO3 solutions

“…The crystallizations of the sparingly soluble alkaline earth carbonates, such as the different CaCO 3 polymorphs calcite, aragonite and vaterite, witherite (BaCO 3 ), and strontianite (SrCO 3 ), have been studied already [2][3][4][5][6][7][8][9][10]. The results suggest that the rates of nucleation and the crystal growth are both strongly dependent on supersaturation.…”