【摘要】 利用碳酸化合成方法开发了文石型碳酸钙晶须材料,并对氯化镁浓度的影响和反应过程进行了详细研究。实验表明:氯化镁的加入有利于文石相碳酸钙的形成,在浓度为0.4mol/L以上时可以得到单一文石晶须;反应终点可以通过pH值的测定加以检测。更多还原

【Abstract】 Aragonite whiskers were prepared by carbonat process. The influence of MgCl2 and the process of reaction were studied in detail. The results indicated that the concentration of MgCl2 is the key factor which decides the polymorphy of synthesized calcium carbonate. The uniform, pure aragonite whisker can be prepared when the concentration of MgCl2 is above 0. 4 mol/L. Using pH==7 as criterion,the end - point of reaction can be monitored easily.更多还原