Standardní redukční elektrodové potenciály při 25°C - oxidačně redukční elektrody
Elektroda |
Elektrodová reakce |
E° (V) |
Au3+/Au+ |
Au3+ + 2 e- → Au+ |
+1,41 |
Ce4+/Ce3+ |
Ce4+ + e− → Ce3+ |
+1,61 |
ClO4−/ClO3−,OH− |
ClO4− + H2O + 2 e− → ClO3− + 2 OH− |
+0,36 |
ClO3−/ClO2−,OH− |
ClO3- + H2O + 2 e− → ClO2− + 2 OH− |
+0,33 |
ClO3−/ClO−,OH− |
ClO3− + H2O + 2 e− → ClO− + 2 OH− |
+0,66 |
ClO−/Cl−,OH− |
ClO− + H2O + 2 e− → Cl− + 2 OH− |
+0,89 |
Co3+/Co2+ |
Co3+ + e− → Co2+ |
+1,81 |
Cr3+/Cr2+ |
Cr3+ + e− → Cr2+ |
-0,408 |
Cu2+/Cu+ |
Cu2+ + e− → Cu+ |
+0,167 |
Fe3+/Fe2+ |
Fe3+ + e− → Fe2+ |
+0,771 |
H+,chinon/hydrochinon |
C6H4O2 + 2 H+ + 2 e− → C6H4(OH)2 |
+0,699 |
H+,ClO4−/ClO3− |
ClO4− + 2 H+ + 2 e− → ClO3− + H2O |
+1,19 |
H+,ClO3−/HClO2 |
ClO3− + 3 H+ + 2 e− → HClO2 + H2O |
+1,21 |
H+,CO2/HCOOH |
CO2 + 2 H+ + 2 e− → HCOOH |
-0,199 |
H+,Cr2O72−/Cr3+ |
Cr2O72− + 14 H+ + 6 e− → 2 Cr3+ + 7 H2O |
+1,330 |
H+,H2SO3/S2O32− |
2 H2SO3 + 2 H+ + 4 e− → S2O32− + 3 H2O |
+0,400 |
H+,H3PO4/H3PO3 |
H3PO4 + 2 H+ + 2 e− → H3PO3 + H2O |
-0,276 |
H+,HClO2/HClO |
HClO2 + 2 H+ + 2 e− → HClO + H2O |
+1,64 |
H+,HClO/Cl2 |
HClO + H+ + e− → 1/2 Cl2 + H2O |
+1,63 |
H+,HNO2−/NO |
HNO2− + H+ + e− → NO + H2O |
+1,00 |
H+,IO3−/I2 |
IO3− + 6 H+ + 5 e− → 1/2 I2 + 3 H2O |
+1,195 |
H+,MnO2/Mn2+ |
MnO2 + 4 H+ + 2 e− → Mn2+ + 2 H2O |
+1,23 |
H+,MnO4−/Mn2+ |
MnO4− + 8 H+ + 5 e− → Mn2+ + 4 H2O |
+1,51 |
H+,NO3−/HNO2 |
NO3− + 3 H+ + 2 e− → HNO2 + H2O |
+0,94 |
H+,NO3−/NO |
NO3− + 4 H+ + 4 e− → NO + 2 H2O |
+0,96 |
H+,O2 |
O2 + 4 H+ + 4 e− → 2 H2O |
+1,229 |
H+,O2/H2O2 |
O2 + 2 H+ + 2 e− → H2O2 |
+0,682 |
H+,PbO2,SO42−/PbSO4 |
PbO2 + 4 H+ + SO42− + 2 e− → PbSO4 + 2 H2O |
+1,695 |
H+,PbO2/Pb2+ |
PbO2 + 4 H+ + 2 e− → Pb2+ + 2 H2O |
+1,455 |
H2,OH− |
2 H2O + 2 e− → H2 + 2 OH− |
-0,828 |
Hg2+/Hg+ |
Hg2+ + e− → Hg+ |
+0,920 |
Mn3+/Mn2+ |
Mn3+ + e− → Mn2+ |
+1,51 |
MnO4−/MnO2,OH− |
MnO4− + 2 H2O + 3 e− → MnO2 + 4 OH− |
+0,588 |
NO3−/NO2−,OH− |
NO3− + H2O + 2 e− → NO2− + 2 OH− |
+0,01 |
PtCl62−/PtCl42−,Cl− |
PtCl62− + 2 e− → PtCl42− + 2 Cl− |
+0,68 |
Sn4+/Sn2+ |
Sn4+ + 2 e− → Sn2+ |
+0,15 |
Ti3+/Ti2+ |
Ti3+ + e− → Ti2+ |
+0,370 |
Ti4+/Ti3+ |
Ti4+ + e− → Ti3+ |
-0,04 |
Tl3+/Ti+ |
Tl3+ + 2 e− → Tl+ |
+1,25 |
V3+/V2+ |
V3+ + e− → V2+ |
-0,255 |
[Fe(CN)6]4−/[Fe(CN)6]4− |
[Fe(CN)6]3− + 2 e− → [Fe(CN)6]4− |
+0,36 |