Metal phthalocyanines (MPc) (M = Cu, Ni, Co and Fe) have been synthesized and characterized by XRD, IR, ESR and thermal technique. The solid state studies such as magnetic susceptibility, electrical resistivity and electron spill resonance have been carried out. Solar induced degradation of a textile dye Naphthol Blue Black (NBB) has been studied employing metal phthalocyanines.