Disclosed are a phthalocyanine composition which comprises having main diffraction peaks at 7.5.degree., 22.5.degree., 24.3.degree., 25.3.degree. and 28.6.degree. of Bragg angles (2.theta..+-.0.2.degree.) in an X-ray diffraction spectrum with Cu K.alpha., a process for preparing the same, an electrophotographic...http://www.google.com.au/patents/US5304445?utm_source=gb-gplus-sharePatent US5304445 - Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same
