碱-碳酸盐反应中的热力学问题

On Thermodynamics of AlkaliCarbonate Reactions

应用热力学方法计算了碱－碳酸盐反应中的平衡ＣＯ２－３离子浓度以及由Ｃａ（ＯＨ）２水解控制的ＣＯ２－３离子浓度。结果表明，由Ｃａ（ＯＨ）２水解控制的ＣＯ２－３离子浓度小于碱－碳酸盐反应中的平衡ＣＯ２－３离子浓度。这表明Ｃａ（ＯＨ）２水解为碱－碳酸盐反应的进行提供了必要条件。

The thermodynamic theory is employed to calculate the equillibrium concentration of CO2-3in alkalicarbonate reactions and that controlled by Ca(OH)2hydrolysis. The results show that the equillibrium concentration of CO2-3controlled by Ca(OH)2hydrolysis is less than that in alkalicarbonate reactions. This indicates that CO2-3 controlled by Ca(OH)2hydrolysis provides alkalicarbonate reaction with necessary conditions, which is the thermodynamic nature of alkalicarbonate reactions.