The solubility of nesquehonite (MgCO₃·3H₂O) and calcite (CaCO₃) in carbonated water with CO₂ pressure of between 1 and 5 MPa was measured from 293.15 to 343.15 K by the inductively coupled plasma optical emission spectrometry (ICP-OES) analysis method. The results showed that the solubility increased with CO₂ pressure but decreased with temperature in all of the studied situations, and for the ones where the two solid phases coexisted, nesquehonite’s solubility changed little from that of the single-existing cases while calcite’s declined by 1 order of magnitude. The solubility was correlated with both temperature and CO₂ pressure by empirical equations in a concise form.

中文翻译：

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碳酸钙水中碳酸钙钠方解石的溶解度为293.15至343.15 K

的三水菱镁矿的溶解度，碳酸镁（MgCO ₃ ·3H ₂ O）和方解石（碳酸钙₃在碳酸水与CO）₂ 1和5兆帕之间通过电感耦合等离子体光学发射光谱法（ICP-OES从293.15测量到343.15的K压力）分析方法。结果表明，在所有研究情况下，溶解度均随CO ₂压力的增加而随温度的降低而降低；对于两种固相共存的情况，水溶方解石的溶解度与单相相比几乎没有变化，而方解石的溶解度则下降了1％。数量级。通过简明的经验公式，将溶解度与温度和CO ₂压力相关联。