Synthesis and characterization of some halogenated phthalocyanine pigments

Highly coloured, thermally stable metal free, copper, cobalt and nickel of the hexadecachloro‐ and hexadecabromo‐phthalocyanine were synthesized by the urea fusion technique in the dry method. The structure of these compounds was confirmed via spectrophotometric measurements such as ultraviolet‐visible, nuclear magnetic resonance and infrared spectra. Evaluates the pigmentary properties of these compounds according to standard international methods. From the results reveals that these compounds have outstanding properties which allow them to be excellent pigments for various applications.