碳酸钙结晶过程的动力学研究

Study of the Dynamics of Formation of CaCO_3 Crystal

研究了磁化对碳酸钙结晶过程的影响。发现磁处理抑制了晶体的生成 ,有 8min左右的诱导期存在 ,结晶速度比未经磁处理的溶液下降了 75 3%。在同类实验中 ,存在磁处理时间愈长 ,诱导期增长 ,结晶速度更慢等趋势。同时发现 ,磁场对碳酸钙结晶过程的影响主要是通过成垢阴离子起作用。磁记忆效应至少可持续 72h。

The effects of magnetic treatment for calcium carbonate crystallization were investigated.It was found that the formation of CaCO\-3 crystal was suppressed and an induction period of 8 min existed.The velocity of crystallization decreased by 75 3%.In the similar experiments,the longer the magnetic treatment time,the longer the induction period and the slower the velocity of crystallization of CaCO 3.Experimental results also indicated that the magnetic effect was mostly attributable to the magnetic exposure on Na 2CO 3 solution.The magnetic memory lasted at least 72 h following the treatment.