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POTENTIELS NORMAUX D'OXYDO-RÉDUCTION
COUPLE |
DEMI-ÉQUATION : Ox + n e- ® Red |
E° (V) |
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| Ag+ | / | Ag | Ag+ + 1 e- | ® | Ag | 0.80 |
| Al3+ | / | Al | Al3+ + 3 e- | ® | Al | -1.66 |
| Au+ | / | Au | Au+ + 1 e- | ® | Au | 1.68 |
| Au3+ | / | Au+ | Au3++ 2 e- | ® | Au+ | 1.29 |
| Au3+ | / | Au | Au3+ + 3 e- | ® | Au | 1.42 |
| Ba2+ | / | Ba | Ba2++ 2 e- | ® | Ba | -2.90 |
| Be2+ | / | Be | Be2++ 2 e- | ® | Be | -1.70 |
| Br2 | / | Br- | Br2 + 2 e- | ® | Br- | 1.08 |
| BrO3- | / | Br2 | BrO3- 6 H3O+ + 6 e- | ® | Br2 + 9 H2O | 1.52 |
| C2H4O | / | C2H6O | C2H4O + 2 H3O+ + 2 e- (ethanal) | ® | C2H6O + 2 H2O (ethanol) | 0.12 |
| C2H4O2 | / | C2H4O | C2H4O2 + 2 H3O+ + 2 e- (ethanoïque) | ® | C2H4O + 3 H2O (ethanal) | 0.09 |
| C2H4O2 | / | C2H6O | C2H4O2 + 2 H3O+ + 2 e- (ethanoïque) | ® | C2H6O + 3 H2O (ethanol) | 0.07 |
| C6H4O2 | / | C6H6O2 | C6H4O2 + 2 H3O+ + 2 e- (hydroquinone) | ® | C6H6O2 + 2 H2O (quinone) | 0.13 |
| C6H6O6 | / | C6H8O6 | C6H6O6 + 2 H3O+ + 2 e- | ® | C6H8O6 + 2 H2O (vitamine C) | 0.13 |
| Ca2+ | / | Ca | Ca2++ 2 e- | ® | Ca | -3.02 |
| Cd2+ | / | Cd | Cd2++ 2 e- | ® | Cd | -0.40 |
| Cl2 | / | Cl- | Cl2+ 2 e- | ® | 2 Cl- | 1.36 |
| ClO- | / | Cl- | ClO- + 2 H3O+ + 2 e- | ® | Cl- + 3 H2O | 1.70 |
| ClO3- | / | Cl- | ClO3- + 6 H3O+ + 6 e- | ® | Cl- + 9 H2O | 1.45 |
| Co2+ | / | Co | Co2++ 2 e- | ® | Co | -0.28 |
| CO2 | / | HCOOH | CO2 + 2 e- + 2 H3O+ | ® | HCOOH + 2 H2O | -0.20 |
| CO2 | / | H2C2O4 | 2 CO2 + 2 H3O+ + 2 e- | ® | H2C2O4 + 2 H2O | -0.49 |
| Cr2+ | / | Cr | Cr2+ + 2 e- | ® | Cr | -0.55 |
| Cr3+ | / | Cr2+ | Cr3+ + 1 e- | ® | Cr2+ | -0.41 |
| Cr3+ | / | Cr | Cr3+ + 3 e- | ® | Cr | -0.74 |
| Cr2O72- | / | Cr3+ | Cr2O72-+ 14 H3O+ + 6 e- | ® | Cr3+ + 21 H2O | 1.33 |
| Cs+ | / | Cs | Cs+ + 1 e- | ® | Cs | -2.92 |
| Cu+ | / | Cu | Cu+ + 1 e- | ® | Cu | 0.52 |
| Cu2+ | / | Cu+ | Cu2+ + 2 e- | ® | Cu+ | 0.16 |
| Cu2+ | / | Cu | Cu2+ + 1 e- | ® | Cu | 0.34 |
| F2 | / | F- | F2 + 2 e- | ® | 2 F- | 2.85 |
| Fe2+ | / | Fe | Fe2+ + 2 e- | ® | Fe | -0.41 |
| Fe3+ | / | Fe2+ | Fe3+ + 1 e- | ® | Fe2+ | 0.77 |
| Fe3+ | / | Fe | Fe3+ + 3 e- | ® | Fe | -0.03 |
| H3O+ | / | H2 | 2 H3O+ + 2 e- | ® | H2 + 2 H2O | 0,00 |
| H2O | / | H2, OH- | 2 H2O + 2 e- | ® | H2 + 2 OH- | -0.83 |
| H2O2 | / | H2O | H2O2 + 2 H3O+ + 2 e- | ® | 4 H2O | 1.77 |
| I2 | / | I- | I2 + 2 e- | ® | I- | 0.54 |
| IO3- | / | I2 | IO3- + 6 H3O+ + 6 e- | ® | I2 + 9 H2O | 1.19 |
| K+ | / | K | K+ + 1 e- | ® | K | -2.92 |
| Li+ | / | Li | Li+ + 1 e- | ® | Li | -3.03 |
| Mg2+ | / | Mg | Mg2+ + 2 e- | ® | Mg | -2.37 |
| Mn2+ | / | Mn | Mn2+ + 2 e- | ® | Mn | -1.02 |
| MnO2 | / | Mn2+ | MnO2 + 4 H3O+ + 2 e- | ® | Mn2+ + 6 H2O | 1.20 |
| MnO4- | / | Mn2+ | MnO4- + 8 H3O+ + 5 e- | ® | Mn2+ + 12 H2O | 1.51 |
| Na+ | / | Na | Na+ + 1 e- | ® | Na | -2.71 |
| NO3- | / | NO | NO3- + 4 H3O+ + 3 e- | ® | NO + 6 H2O | 0.96 |
| O2 | / | H2O | O2 + 4 H3O+ + 4 e- | ® | 6 H2O | 1.23 |
| O2 | / | H2O2 | O2 + 2 H3O+ + 2 e- | ® | H2O2 + 2 H2O | 0.68 |
| Pb2+ | / | Pb | Pb2+ + 2 e- | ® | Pb | -0.12 |
| S | / | S2- | S + 2 e- | ® | S2- | -0.51 |
| SO42- | / | SO2 | SO42- + 4 H3O+ + 2 e- | ® | SO2 + 6 H2O | 0.17 |
| S2O82- | / | SO42- | S2O82- + 2 e- | ® | 2 SO42- | 2.00 |
| S4O62- | / | S2O32- | S4O62- + 2 e- | ® | 2 S2O32- | 0.09 |
| Sn2+ | / | Sn | Sn2+ + 2 e- | ® | Sn | -0.14 |
| Sr2+ | / | Sr | Sr2+ + 2 e- | ® | Sr | -2.89 |
| Zn2+ | / | Zn | Zn2+ + 2 e- | ® | Zn | -0.77 |
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