Hydrogen peroxide is used as a cleaning agent in the treatment of cuts and abrasions for several reasons. It is an oxidizing agent that can directly kill many microorganisms; it decomposes upon contact with blood, releasing elemental oxygen gas (which inhibits the growth of an-aerobic microorganisms); and it foams upon contact with blood, which provides a cleansing action. In the laboratory, small quantities of hydrogen peroxide can be prepared by the action of an acid on alkaline earth metal peroxide, such as barium peroxide:
BaO2(s) + 2HCl(aq) → H2O2(aq) + BaCl2(aq)

  • CreatedMay 04, 2015
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