Abstract: The influence of temperature and duration of treatment of α-Copper Phthalocyanine in toluene was investigated experimentally, and the activation energy E in toluene was calculated to be 60.2 kJ/mol. A comparative study of different types of solvents on the rate of crystal phase transformation of α-Copper Phthalocyanine was carried out, and it was concluded that the solubility of Copper Phthalocyanine played a decisive role in the phasetransformation. The solubilities of α-Copper Phthalocyanine in different solvents could be estimated through the characteristic absorption peaks by means of the photo-electric spectrometer. It was also pointed out that the phase conversion process of α- to β-Copper Phthalocyanine pigment in those solvents where α-phase dissolves only with difficulty, is not related to Ostwald crystal growth.

摘要： 本文对α-铜酞菁在甲苯中的晶相转变速度同温度、时间的关系,做了实验性的研究比较,并计算出在甲苯中的活化能E为60.2kJ/mol.对α-铜酞菁在各种不同溶剂中的晶相转变速度,做了比较试验,结果表明,α-铜酞菁在溶剂中的晶相转变速度,主要决定因素是它在溶剂中的溶解度.α-铜酞菁在溶剂中的溶解度可以直接用分光光度计进行测定.本文还指出:α-铜酞菁在那些难以溶解的溶剂中转变为β-铜酞菁时对Ostwald结晶生长并无重要影响.