Standardní redukční elektrodové potenciály při 25°C - elektrody prvého druhu
|
Elektroda |
Elektrodová reakce |
E° (V) |
|
Kationtové reakce |
||
|
Ag+/Ag |
Ag+ + e- → Ag |
+0.799 |
|
Al3+/Al |
Al3+ + 3 e− → Al |
-1.662 |
|
Au3+/Au |
Au3+ + 3 e− → Au |
+1.498 |
|
Ba2+/Ba |
Ba2+ + 2 e− → Ba |
-2.906 |
|
Be2+/Be |
Be2+ + 2 e− → Be |
-1.847 |
|
Ca2+/Ca |
Ca2+ + 2 e− → Ca |
-2.866 |
|
Cd2+/Cd |
Cd2+ + 2 e− → Cd |
-0.401 |
|
Co2+/Co |
Co2+ + 2 e− → Co |
-0.277 |
|
Cr2+/Cr |
Cr2+ + 2 e− → Cr |
-0.913 |
|
Cr3+/Cr |
Cr3+ + 3 e− → Cr |
-0.744 |
|
Cu+/Cu |
Cu+ + e− → Cu |
+0.521 |
|
Cu2+/Cu |
Cu2+ + 2 e− → Cu |
+0.337 |
|
Fe2+/Fe |
Fe2+ + 2 e− → Fe |
-0.441 |
|
Fe3+/Fe |
Fe3+ + 3 e− → Fe |
-0.036 |
|
H+/(1/2 H2) |
H+ + e− → 1/2 H2 |
0.000 |
|
Hg2+/Hg |
Hg2+ + 2 e− → Hg |
+0.854 |
|
K+/K |
K+ + e− → K |
-2.925 |
|
La3+/La |
La+ + e− → La |
-2.522 |
|
Li+/Li |
Li+ + e− → Li |
-3.045 |
|
Mg2+/Mg |
Mg2+ + 2 e− → Mg |
-2.363 |
|
Mn2+/Mn |
Mn2+ + 2 e− → Mn |
-1.180 |
|
Na+/Na |
Na+ + e− → Na |
-2.714 |
|
Ni2+/Ni |
Ni2+ + 2 e− → Ni |
-0.250 |
|
Pb2+/Pb |
Pb2+ + 2 e− → Pb |
-0.126 |
|
Sn2+/Sn |
Sn2+ + 2 e− → Sn |
-0.140 |
|
Sr2+/Sr |
Sr2+ + 2 e− → Sr |
-2.888 |
|
Th4+/Th |
Th4+ + 4 e− → Th |
-1.899 |
|
Tl+/Tl |
Tl+ + e− → Tl |
-0.336 |
|
Zn2+/Zn |
Zn2+ + 2 e− → Zn |
-0.763 |
|
1/2 Hg+/Hg |
1/2 Hg+ + e− → Hg |
+0.799 |
|
Aniontové reakce |
||
|
Elektroda |
Elektrodová reakce |
E° (V) |
|
1/2 O2/OH− |
1/2 O2 + H2O + 2 e− → 2 OH− |
+0.401 |
|
1/2 I2(s)/I− |
1/2 I2 + e− → I− |
+0.536 |
|
1/2 Br2/Br− |
1/2 Br2 + e− → Br− |
+1.065 |
|
1/2 Cl2/Cl− |
1/2 Cl2 + e− → Cl− |
+1.360 |
|
1/2 F2/F− |
1/2 F2 + e− → F− |
+2.870 |
|
S/S2− |
S + 2 e− → S2− |
-0.447 |
|
Se/Se2- |
Se + 2 e− → Se2− |
-0.920 |