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H2○2既有氧化性又有还原性 E O20.6945VH2O,1.763VH,O E HO,+H,o+2e=30H. EB=0.867V 3H2O2+2MnO4==2MnO2+302↑+20H+2H2O 5HO2+2MO-+6H=21m+502↑+8H2O H,02+Mn(OH)-- Mno2+ 2H20 3H,O,+ NaCro, +2NaOH== 2Na2 CrO4+4H2O H2O2+2Fc2+2H=2+2H2O3H2O2 + 2MnO4 -== 5H2O2 + 2MnO4 -+6H+ == H2O2 + Mn(OH)2 == 3H2O2+2NaCrO2+2NaOH == H2O2+2Fe2++2H+ == H2O2既有氧化性又有还原性 2MnO2↓+3O2↑+2OH-+2H2O 2Mn2++5O2 ↑ +8H2O MnO2 ↓ + 2H2O 2Fe3++2H2O 2Na2CrO4 + 4H2O O2 0.6945V H2 O2 1.763V H2 O EB EA HO H O 2e 3OH , 0.867V - - 2 - 2 + + EB =
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