tirring the pigment in the acid for an effective period of time, from about 30 seconds to about 24 hours, and in an embodiment about 2 hours at a temperature of from about 0??? C. to about 75??? C., and preferably about 40??? C. in air or under an inert atmosphere such as argon or nitrogen; 2) reprecipitating the dissolved Type I chlorogallium phthalocyanine pigment by adding the dissolved solutio