Abstract
The Fe3+-catalyzed decomposition of hydrogen peroxide has been investigated in mediums composed of water and acetonitrile in various ratios. The ratios of the amount of decomposed hydrogen peroxide to that of oxygen evolution are in proportion to the average ratios of acetonitrile concentration to hydrogen peroxide in the low acetonitrile content. It shows that the oxidant produced on the Fe3+-catalyzed decomposition of hydrogen peroxide is hydroxyl radical. The linear relationship could not be found in high acetonitrile concentration. The oxidant produced on the Fe3+-catalyzed decomposition of hydrogen peroxide in high acetonitrile concentration was discussed in relation to the oxidant (ferryl ion) produced in hemoprotein catalyzed decomposition of hydrogen peroxide.
