Solution of gallium phthalocyanine method for preparing the same method for producing gallium phthalocyanine crystal method for purifying composition containing gallium phthalocyanine and method for producing electrophotographic photosensitive member

摘要

A solution of a gallium phthalocyanine contains a compound of formula (1) and a gallium phthalocyanine of formula (2),H₂N—CH₂—R¹—CH₂—NH₂  (1)wherein R¹ represents a single bond, or a substituted or unsubstituted alkylene group having 1 to 10 main-chain carbon atoms, a substituent of the substituted alkylene group is an alkyl group having 1 to 3 carbon atoms, an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, or a hydroxy group, one of the carbon atoms in the main chain of the alkylene group may be replaced with an oxygen atom, a sulfur atom, or a bivalent group represented by the formula —NR²—, and R² represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, and; wherein X¹ represents a chlorine atom or hydroxy group.