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实验表明在发生相转化的FeCl3－HCl水解体系中，醇的存在起到了相转化抑制剂的作用，降低了α－Fe2O3沉淀组分的过饱和浓度，减少了成核数目，有利于形成较大的均匀胶体粒子．粒子尺寸随浓度的增加而加大，形状因球形趋变为立方体．
Experiments show that in the phase transformation of FeCl3-HCl hydrolysis system, the presence of alcohol as a phase inversion inhibitor, reducing the α-Fe2O3 precipitation component supersaturation concentration, reducing the number of nucleation is conducive to the formation of larger Uniform colloidal particles. Particle size increases with increasing concentration, the shape due to the ball into a cube.