重结晶是纯化固态有机化合物的重要实验方法之一,在化学化工,医药卫生,食品等许多行业中用途甚广,尤其是进行化学成分研究中,重结晶是不可缺少的一个重要环节,它对实验结果的影响较大.目前,实验教材中常用的重结晶装置如图1所示: Recrystallization is one of the important experimental methods for the purification of solid organic compounds. It is widely used in many industries such as chemical engineering, medicine and health, food and so on. Recrystallization is an indispensable and important part in the research of chemical composition. The impact of the experimental results larger.At present, experimental teaching materials commonly used in recrystallization device shown in Figure 1: