![]() The compound is stable by itself, but readily decomposes in light or in the presence of metal ions (or, indeed, other catalysts). One catalase molecule can destroy over 4 × 10 7 hydrogen peroxide molecules a second. In fact, when H 2O 2 is produced in human metabolism the body calls on the remarkable enzyme catalase to destroy hydrogen peroxide very quickly. Some cells may produce hydrogen peroxide under certain circumstances to kill germs. The American Cancer Society says that there is no evidence to support the view that hydrogen peroxide is a cancer cure, and that the chemical may well be harmful. Similar solutions of H 2O 2 are also safe to put on cuts to clean wounds. Yes, but in very dilute solutions (3 per cent). Isn't hydrogen peroxide used in some mouthwash? Sadly, however, people died after the treatment. Some American doctors have tried injecting patients with hydrogen peroxide as a treatment for cancer, multiple sclerosis and other complaints. What's this about hydrogen peroxide being used to treat cancer? ![]()
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