Microwave Assisted Synthesis of Copper Phthalocyanine and their Applications on Cotton Fabric

Zafar Iqbal1, Noreen Rafi2, Sumara Qasim2 and Mahak Jalik2

1Applied Chemistry Research Centre,
PCSIR Laboratories Complex, Lahore,
PAKISTAN 2Department of Chemistry,
Faculty of Applied Chemistry,
University of Engineering & Technology,


Copper phthalocyanine blue pigment was synthesized by using urea, phthalic anhydride and copper chloride in the presence of ammonium molybdate as a catalyst under microwave irradiation. The pigment was prepared at different time intervals i,e. 3, 4, 5, 6, 7 & 8 minute using medium power (400-500)W of microwave oven. The maximum yield was observed at 6 minute. Moreover, colour strength was improved by changing the synthesis process and by increasing the grinding time of reactants. Copper phthalocyanine blue pigment was further treated with water and chlorobenzene resulting in the formation of dark blue and greenish blue colored shades respectively. The solvents were used to enhance the yield of Copper phthalocyanine in terms of shade intensity. The prepared samples were evaluated by UV-Vis spectrophotometer and FT-IR spectroscopy.

Keywords :Copper phthalocyanine, Urea, Phthalic anhydride, Ammonium molybdate, Chlorobenzene.