The catalytic activity of ferric ions with o – phenathroline in chemi-luminescence reaction of luminol

It is found that the ferric ions, as a catalyst, have a weak effect on the oxidation of luminol "triaminophtal hydrazid" by (DPCA) and through chemiluminescence reaction. For increasing the catalytic activity of ferric ions we used organic and nonorganic compounds. The best compound was o – phenathroline. It forms two different complexes with ferric (A) and ferrous (B) ions (A, B). The formation of hydrolyzed mixture of the complexes (Ph-Fe3+) depends on the pH. We found that (Ph-Fe3+) complex was very effective in chime-luminescence process above mentioned.