Oxidant |
⇌ |
Reductant |
Voltage |
Sr+ + e− |
⇌ |
Sr |
−4.10 |
Ca+ + e− |
⇌ |
Ca |
−3.8 |
Pr3+ + e− |
⇌ |
Pr2+ |
−3.1 |
3 N2(g) + 2 H+ + 2 e− |
⇌ |
2HN3(aq) |
−3.09 |
Li+ + e− |
⇌ |
Li(s) |
−3.0401 |
N2(g) + 4H2O + 2 e− |
⇌ |
2 NH2OH(aq) + 2 OH− |
−3.04 |
Cs+ + e− |
⇌ |
Cs(s) |
−3.026 |
Ca(OH)2 + 2 e− |
⇌ |
Ca + 2 OH− |
−3.02 |
Er3+ + e− |
⇌ |
Er2+ |
−3.0 |
Ba(OH)2 + 2 e− |
⇌ |
Ba + 2 OH− |
−2.99 |
Rb+ + e− |
⇌ |
Rb(s) |
−2.98 |
K+ + e− |
⇌ |
K(s) |
−2.931 |
Ba2+ + 2 e− |
⇌ |
Ba(s) |
−2.912 |
La(OH)3(s) + 3 e− |
⇌ |
La(s) + 3 OH− |
−2.90 |
Fr+ + e− |
⇌ |
Fr |
−2.9 |
Sr2+ + 2 e− |
⇌ |
Sr(s) |
−2.899 |
Sr(OH)2 + 2 e− |
⇌ |
Sr + 2 OH− |
−2.88 |
Ca2+ + 2 e− |
⇌ |
Ca(s) |
−2.868 |
Eu2+ + 2 e− |
⇌ |
Eu(s) |
−2.812 |
Ra2+ + 2 e− |
⇌ |
Ra(s) |
−2.8 |
Ho3+ + e− |
⇌ |
Ho2+ |
−2.8 |
Bk3+ + e− |
⇌ |
Bk2+ |
−2.8 |
Yb2+ + 2 e− |
⇌ |
Yb |
−2.76 |
Na+ + e− |
⇌ |
Na(s) |
−2.71 |
Mg+ + e− |
⇌ |
Mg |
−2.70 |
Nd3+ + e− |
⇌ |
Nd2+ |
−2.7 |
Mg(OH)2 + 2 e− |
⇌ |
Mg + 2 OH− |
−2.690 |
Sm2+ + 2 e− |
⇌ |
Sm |
−2.68 |
Be2O32− + 3 H2O + 4 e− |
⇌ |
2 Be + 6 OH− |
−2.63 |
Pm3+ + e− |
⇌ |
Pm2+ |
−2.6 |
Dy3+ + e− |
⇌ |
Dy2+ |
−2.6 |
No2+ + 2 e− |
⇌ |
No |
−2.50 |
HfO(OH)2 + H2O + 4 e− |
⇌ |
Hf + 4 OH− |
−2.50 |
Th(OH)4 + 4 e− |
⇌ |
Th + 4 OH− |
−2.48 |
Md2+ + 2 e− |
⇌ |
Md |
−2.40 |
Tm2+ + 2 e− |
⇌ |
Tm |
−2.4 |
La3+ + 3 e− |
⇌ |
La(s) |
−2.379 |
Y3+ + 3 e− |
⇌ |
Y(s) |
−2.372 |
Mg2+ + 2 e− |
⇌ |
Mg(s) |
−2.372 |
ZrO(OH)2(s) + H2O + 4 e− |
⇌ |
Zr(s) + 4 OH− |
−2.36 |
Pr3+ + 3 e− |
⇌ |
Pr |
−2.353 |
Ce3+ + 3 e− |
⇌ |
Ce |
−2.336 |
Er3+ + 3 e− |
⇌ |
Er |
−2.331 |
Ho3+ + 3 e− |
⇌ |
Ho |
−2.33 |
H2AlO3− + H2O + 3 e− |
⇌ |
Al + 4 OH− |
−2.33 |
Nd3+ + 3 e− |
⇌ |
Nd |
−2.323 |
Tm3+ + 3 e− |
⇌ |
Tm |
−2.319 |
Al(OH)3(s) + 3 e− |
⇌ |
Al(s) + 3 OH− |
−2.31 |
Sm3+ + 3 e− |
⇌ |
Sm |
−2.304 |
Fm2+ + 2 e− |
⇌ |
Fm |
−2.30 |
Am3+ + e− |
⇌ |
Am2+ |
−2.3 |
Dy3+ + 3 e− |
⇌ |
Dy |
−2.295 |
Lu3+ + 3 e− |
⇌ |
Lu |
−2.28 |
Tb3+ + 3 e− |
⇌ |
Tb |
−2.28 |
Gd3+ + 3 e− |
⇌ |
Gd |
−2.279 |
H2 + 2 e− |
⇌ |
2 H− |
−2.23 |
Es2+ + 2 e− |
⇌ |
Es |
−2.23 |
Pm2+ + 2 e− |
⇌ |
Pm |
−2.2 |
Tm3+ + e− |
⇌ |
Tm2+ |
−2.2 |
Dy2+ + 2 e− |
⇌ |
Dy |
−2.2 |
Ac3+ + 3 e− |
⇌ |
Ac |
−2.20 |
Yb3+ + 3 e− |
⇌ |
Yb |
−2.19 |
Cf2+ + 2 e− |
⇌ |
Cf |
−2.12 |
Nd2+ + 2 e− |
⇌ |
Nd |
−2.1 |
Ho2+ + 2 e− |
⇌ |
Ho |
−2.1 |
Sc3+ + 3 e− |
⇌ |
Sc(s) |
−2.077 |
AlF63− + 3 e− |
⇌ |
Al + 6 F− |
−2.069 |
Am3+ + 3 e− |
⇌ |
Am |
−2.048 |
Cm3+ + 3 e− |
⇌ |
Cm |
−2.04 |
Pu3+ + 3 e− |
⇌ |
Pu |
−2.031 |
Pr2+ + 2 e− |
⇌ |
Pr |
−2.0 |
Er2+ + 2 e− |
⇌ |
Er |
−2.0 |
Eu3+ + 3 e− |
⇌ |
Eu |
−1.991 |
Lr3+ + 3 e− |
⇌ |
Lr |
−1.96 |
Cf3+ + 3 e− |
⇌ |
Cf |
−1.94 |
Es3+ + 3 e− |
⇌ |
Es |
−1.91 |
Pa4+ + e− |
⇌ |
Pa3+ |
−1.9 |
Am2+ + 2 e− |
⇌ |
Am |
−1.9 |
Th4+ + 4 e− |
⇌ |
Th |
−1.899 |
Fm3+ + 3 e− |
⇌ |
Fm |
−1.89 |
Np3+ + 3 e− |
⇌ |
Np |
−1.856 |
Be2+ + 2 e− |
⇌ |
Be |
−1.847 |
H2PO2− + e− |
⇌ |
P + 2 OH− |
−1.82 |
U3+ + 3 e− |
⇌ |
U |
−1.798 |
Sr2+ + 2 e− |
⇌ |
Sr/Hg |
−1.793 |
H2BO3− + H2O + 3 e− |
⇌ |
B + 4 OH− |
−1.79 |
ThO2 + 4H+ + 4 e− |
⇌ |
Th + 2 H2O |
−1.789 |
HfO2+ + 2 H+ + 4 e− |
⇌ |
Hf + H2O |
−1.724 |
HPO32− + 2 H2O + 3 e− |
⇌ |
P + 5 OH− |
−1.71 |
SiO32− + H2O + 4 e− |
⇌ |
Si + 6 OH− |
−1.697 |
Al3+ + 3 e− |
⇌ |
Al(s) |
−1.662 |
Ti2+ + 2 e− |
⇌ |
Ti(s) |
−1.63 |
ZrO2(s) + 4 H+ + 4 e− |
⇌ |
Zr(s) + 2H2O |
−1.553 |
Zr4+ + 4 e− |
⇌ |
Zr(s) |
−1.45 |
Ti3+ + 3 e− |
⇌ |
Ti(s) |
−1.37 |
TiO(s) + 2 H+ + 2 e− |
⇌ |
Ti(s) + H2O |
−1.31 |
Ti2O3(s) + 2 H+ + 2 e− |
⇌ |
2 TiO(s) + H2O |
−1.23 |
Zn(OH)42− + 2 e− |
⇌ |
Zn(s) + 4 OH− |
−1.199 |
Mn2+ + 2 e− |
⇌ |
Mn(s) |
−1.185 |
Fe(CN)64− + 6 H+ + 2 e− |
⇌ |
Fe(s) + 6HCN(aq) |
−1.16 |
Te(s) + 2 e− |
⇌ |
Te2− |
−1.143 |
V2+ + 2 e− |
⇌ |
V(s) |
−1.13 |
Nb3+ + 3 e− |
⇌ |
Nb(s) |
−1.099 |
Sn(s) + 4 H+ + 4 e− |
⇌ |
SnH4(g) |
−1.07 |
SiO2(s) + 4 H+ + 4 e− |
⇌ |
Si(s) + 2H2O |
−0.91 |
B(OH)3(aq) + 3 H+ + 3 e− |
⇌ |
B(s) + 3H2O |
−0.89 |
Fe(OH)2(s) + 2 e− |
⇌ |
Fe(s) + 2 OH− |
−0.89 |
Fe2O3(s) + 3H2O + 2 e− |
⇌ |
2Fe(OH)2(s) + 2 OH− |
−0.86 |
TiO2+ + 2 H+ + 4 e− |
⇌ |
Ti(s) + H2O |
−0.86 |
2H2O + 2 e− |
⇌ |
H2(g) + 2 OH− |
−0.8277 |
Bi(s) + 3 H+ + 3 e− |
⇌ |
BiH3 |
−0.8 |
Zn2+ + 2 e− |
⇌ |
Zn(Hg) |
−0.7628 |
Zn2+ + 2 e− |
⇌ |
Zn(s) |
−0.7618 |
Ta2O5(s) + 10 H+ + 10 e− |
⇌ |
2 Ta(s) + 5H2O |
−0.75 |
Cr3+ + 3 e− |
⇌ |
Cr(s) |
−0.74 |
[Au(CN)2]− + e− |
⇌ |
Au(s) + 2 CN− |
−0.60 |
Ta3+ + 3 e− |
⇌ |
Ta(s) |
−0.6 |
PbO(s) + H2O + 2 e− |
⇌ |
Pb(s) + 2 OH− |
−0.58 |
2 TiO2(s) + 2 H+ + 2 e− |
⇌ |
Ti2O3(s) + H2O |
−0.56 |
Ga3+ + 3 e− |
⇌ |
Ga(s) |
−0.53 |
U4+ + e− |
⇌ |
U3+ |
−0.52 |
H3PO2(aq) + H+ + e− |
⇌ |
P(white)[note 1] + 2H2O |
−0.508 |
H3PO3(aq) + 2 H+ + 2 e− |
⇌ |
H3PO2(aq) + H2O |
−0.499 |
H3PO3(aq) + 3 H+ + 3 e− |
⇌ |
P(red)[note 1] + 3H2O |
−0.454 |
Fe2+ + 2 e− |
⇌ |
Fe(s) |
−0.44 |
2 CO2(g) + 2 H+ + 2 e− |
⇌ |
HOOCCOOH(aq) |
−0.43 |
Cr3+ + e− |
⇌ |
Cr2+ |
−0.42 |
Cd2+ + 2 e− |
⇌ |
Cd(s) |
−0.40 |
GeO2(s) + 2 H+ + 2 e− |
⇌ |
GeO(s) + H2O |
−0.37 |
Cu2O(s) + H2O + 2 e− |
⇌ |
2 Cu(s) + 2 OH− |
−0.360 |
PbSO4(s) + 2 e− |
⇌ |
Pb(s) + SO42− |
−0.3588 |
PbSO4(s) + 2 e− |
⇌ |
Pb(Hg) + SO42− |
−0.3505 |
Eu3+ + e− |
⇌ |
Eu2+ |
−0.35 |
In3+ + 3 e− |
⇌ |
In(s) |
−0.34 |
Tl+ + e− |
⇌ |
Tl(s) |
−0.34 |
Ge(s) + 4 H+ + 4 e− |
⇌ |
GeH4(g) |
−0.29 |
Co2+ + 2 e− |
⇌ |
Co(s) |
−0.28 |
H3PO4(aq) + 2 H+ + 2 e− |
⇌ |
H3PO3(aq) + H2O |
−0.276 |
V3+ + e− |
⇌ |
V2+ |
−0.26 |
Ni2+ + 2 e− |
⇌ |
Ni(s) |
−0.25 |
As(s) + 3 H+ + 3 e− |
⇌ |
AsH3(g) |
−0.23 |
AgI(s) + e− |
⇌ |
Ag(s) + I− |
−0.15224 |
MoO2(s) + 4 H+ + 4 e− |
⇌ |
Mo(s) + 2H2O |
−0.15 |
Si(s) + 4 H+ + 4 e− |
⇌ |
SiH4(g) |
−0.14 |
Sn2+ + 2 e− |
⇌ |
Sn(s) |
−0.13 |
O2(g) + H+ + e− |
⇌ |
HO2•(aq) |
−0.13 |
Pb2+ + 2 e− |
⇌ |
Pb(s) |
−0.126 |
WO2(s) + 4 H+ + 4 e− |
⇌ |
W(s) + 2H2O |
−0.12 |
P(red) + 3 H+ + 3 e− |
⇌ |
PH3(g) |
−0.111 |
CO2(g) + 2 H+ + 2 e− |
⇌ |
HCOOH(aq) |
−0.11 |
Se(s) + 2 H+ + 2 e− |
⇌ |
H2Se(g) |
−0.11 |
CO2(g) + 2 H+ + 2 e− |
⇌ |
CO(g) + H2O |
−0.11 |
SnO(s) + 2 H+ + 2 e− |
⇌ |
Sn(s) + H2O |
−0.10 |
SnO2(s) + 4 H+ + 4 e− |
⇌ |
SnO(s) + 2H2O |
−0.09 |
WO3(aq) + 6 H+ + 6 e− |
⇌ |
W(s) + 3H2O |
−0.09 |
P(white) + 3 H+ + 3 e− |
⇌ |
PH3(g) |
−0.063 |
Fe3+ + 3 e− |
⇌ |
Fe(s) |
−0.04 |
HCOOH(aq) + 2 H+ + 2 e− |
⇌ |
HCHO(aq) + H2O |
−0.03 |
2 H+ + 2 e− |
⇌ |
H2(g) |
0.0000 |
AgBr(s) + e− |
⇌ |
Ag(s) + Br− |
+0.07133 |
S4O62− + 2 e− |
⇌ |
2 S2O32− |
+0.08 |
Fe3O4(s) + 8 H+ + 8 e− |
⇌ |
3 Fe(s) + 4H2O |
+0.085 |
N2(g) + 2H2O + 6 H+ + 6 e− |
⇌ |
2 NH4OH(aq) |
+0.092 |
HgO(s) + H2O + 2 e− |
⇌ |
Hg(l) + 2 OH− |
+0.0977 |
Cu(NH3)42+ + e− |
⇌ |
Cu(NH3)2+ + 2 NH3 |
+0.10 |
Ru(NH3)63+ + e− |
⇌ |
Ru(NH3)62+ |
+0.10 |
N2H4(aq) + 4H2O + 2 e− |
⇌ |
2 NH4+ + 4 OH− |
+0.11 |
H2MoO4(aq) + 6 H+ + 6 e− |
⇌ |
Mo(s) + 4H2O |
+0.11 |
Ge4+ + 4 e− |
⇌ |
Ge(s) |
+0.12 |
C(s) + 4 H+ + 4 e− |
⇌ |
CH4(g) |
+0.13 |
HCHO(aq) + 2 H+ + 2 e− |
⇌ |
CH3OH(aq) |
+0.13 |
S(s) + 2 H+ + 2 e− |
⇌ |
H2S(g) |
+0.14 |
Sn4+ + 2 e− |
⇌ |
Sn2+ |
+0.15 |
Cu2+ + e− |
⇌ |
Cu+ |
+0.159 |
HSO4− + 3 H+ + 2 e− |
⇌ |
SO2(aq) + 2H2O |
+0.16 |
UO22+ + e− |
⇌ |
UO2+ |
+0.163 |
SO42− + 4 H+ + 2 e− |
⇌ |
SO2(aq) + 2H2O |
+0.17 |
TiO2+ + 2 H+ + e− |
⇌ |
Ti3+ + H2O |
+0.19 |
SbO+ + 2 H+ + 3 e− |
⇌ |
Sb(s) + H2O |
+0.20 |
AgCl(s) + e− |
⇌ |
Ag(s) + Cl− |
+0.22233 |
H3AsO3(aq) + 3 H+ + 3 e− |
⇌ |
As(s) + 3H2O |
+0.24 |
GeO(s) + 2 H+ + 2 e− |
⇌ |
Ge(s) + H2O |
+0.26 |
UO2+ + 4 H+ + e− |
⇌ |
U4+ + 2H2O |
+0.273 |
Re3+ + 3 e− |
⇌ |
Re(s) |
+0.300 |
Bi3+ + 3 e− |
⇌ |
Bi(s) |
+0.308 |
VO2+ + 2 H+ + e− |
⇌ |
V3+ + H2O |
+0.34 |
Cu2+ + 2 e− |
⇌ |
Cu(s) |
+0.337 |
[Fe(CN)6]3− + e− |
⇌ |
[Fe(CN)6]4− |
+0.36 |
Fc+ + e− |
⇌ |
Fc(s) |
+0.4 |
O2(g) + 2H2O + 4 e− |
⇌ |
4 OH−(aq) |
+0.401 |
H2MoO4 + 6 H+ + 3 e− |
⇌ |
Mo3+ + 2H2O |
+0.43 |
CH3OH(aq) + 2 H+ + 2 e− |
⇌ |
CH4(g) + H2O |
+0.50 |
SO2(aq) + 4 H+ + 4 e− |
⇌ |
S(s) + 2H2O |
+0.50 |
Cu+ + e− |
⇌ |
Cu(s) |
+0.520 |
CO(g) + 2 H+ + 2 e− |
⇌ |
C(s) + H2O |
+0.52 |
I3− + 2 e− |
⇌ |
3 I− |
+0.53 |
I2(s) + 2 e− |
⇌ |
2 I− |
+0.54 |
[AuI4]− + 3 e− |
⇌ |
Au(s) + 4 I− |
+0.56 |
H3AsO4(aq) + 2 H+ + 2 e− |
⇌ |
H3AsO3(aq) + H2O |
+0.56 |
[AuI2]− + e− |
⇌ |
Au(s) + 2 I− |
+0.58 |
MnO4− + 2H2O + 3 e− |
⇌ |
MnO2(s) + 4 OH− |
+0.59 |
S2O32 − + 6 H+ + 4 e− |
⇌ |
2 S(s) + 3H2O |
+0.60 |
H2MoO4(aq) + 2 H+ + 2 e− |
⇌ |
MoO2(s) + 2H2O |
+0.65 |
+ 2 H+ + 2 e− |
⇌ |
![](//upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Hydrochinon2.svg/110px-Hydrochinon2.svg.png) |
+0.6992 |
O2(g) + 2 H+ + 2 e− |
⇌ |
H2O2(aq) |
+0.70 |
Tl3+ + 3 e− |
⇌ |
Tl(s) |
+0.72 |
PtCl62− + 2 e− |
⇌ |
PtCl42− + 2 Cl− |
+0.726 |
H2SeO3(aq) + 4 H+ + 4 e− |
⇌ |
Se(s) + 3H2O |
+0.74 |
PtCl42− + 2 e− |
⇌ |
Pt(s) + 4 Cl− |
+0.758 |
Fe3+ + e− |
⇌ |
Fe2+ |
+0.77 |
Ag+ + e− |
⇌ |
Ag(s) |
+0.7996 |
Hg22+ + 2 e− |
⇌ |
2 Hg(l) |
+0.80 |
NO3−(aq) + 2 H+ + e− |
⇌ |
NO2(g) + H2O |
+0.80 |
2FeO42− + 5H2O + 6 e− |
⇌ |
Fe2O3(s) + 10 OH− |
+0.81 |
[AuBr4]− + 3 e− |
⇌ |
Au(s) + 4 Br− |
+0.85 |
Hg2+ + 2 e− |
⇌ |
Hg(l) |
+0.85 |
[IrCl6]2− + e− |
⇌ |
[IrCl6]3− |
+0.87 |
MnO4− + H+ + e− |
⇌ |
HMnO4− |
+0.90 |
2 Hg2+ + 2 e− |
⇌ |
Hg22+ |
+0.91 |
Pd2+ + 2 e− |
⇌ |
Pd(s) |
+0.915 |
[AuCl4]− + 3 e− |
⇌ |
Au(s) + 4 Cl− |
+0.93 |
MnO2(s) + 4 H+ + e− |
⇌ |
Mn3+ + 2H2O |
+0.95 |
NO3−(aq) + 4 H+ + 3 e− |
⇌ |
NO(g) + 2H2O(l) |
+0.958 |
[AuBr2]− + e− |
⇌ |
Au(s) + 2 Br− |
+0.96 |
[HXeO6]3− + 2H2O + 2 e− + |
⇌ |
[HXeO4]− + 4 OH− |
+0.99 |
[VO2]+(aq) + 2 H+ + e− |
⇌ |
[VO]2+(aq) + H2O |
+1.0 |
H6TeO6(aq) + 2 H+ + 2 e− |
⇌ |
TeO2(s) + 4H2O |
+1.02 |
Br2(l) + 2 e− |
⇌ |
2 Br− |
+1.066 |
Br2(aq) + 2 e− |
⇌ |
2 Br− |
+1.0873 |
IO3− + 5 H+ + 4 e− |
⇌ |
HIO(aq) + 2H2O |
+1.13 |
[AuCl2]− + e− |
⇌ |
Au(s) + 2 Cl− |
+1.15 |
HSeO4− + 3 H+ + 2 e− |
⇌ |
H2SeO3(aq) + H2O |
+1.15 |
Ag2O(s) + 2 H+ + 2 e− |
⇌ |
2 Ag(s) + H2O |
+1.17 |
ClO3− + 2 H+ + e− |
⇌ |
ClO2(g) + H2O |
+1.18 |
[HXeO6]3− + 5H2O + 8 e− |
⇌ |
Xe(g) + 11 OH− |
+1.18 |
Pt2+ + 2 e− |
⇌ |
Pt(s) |
+1.188 |
ClO2(g) + H+ + e− |
⇌ |
HClO2(aq) |
+1.19 |
2 IO3− + 12 H+ + 10 e− |
⇌ |
I2(s) + 6H2O |
+1.20 |
ClO4− + 2 H+ + 2 e− |
⇌ |
ClO3− + H2O |
+1.20 |
O2(g) + 4 H+ + 4 e− |
⇌ |
2H2O |
+1.229 |
MnO2(s) + 4 H+ + 2 e− |
⇌ |
Mn2+ + 2H2O |
+1.23 |
[HXeO4]− + 3H2O + 6 e− |
⇌ |
Xe(g) + 7 OH− |
+1.24 |
Tl3+ + 2 e− |
⇌ |
Tl+ |
+1.25 |
Cr2O72− + 14 H+ + 6 e− |
⇌ |
2 Cr3+ + 7H2O |
+1.33 |
Cl2(g) + 2 e− |
⇌ |
2 Cl− |
+1.36 |
CoO2(s) + 4 H+ + e− |
⇌ |
Co3+ + 2H2O |
+1.42 |
2 NH3OH+ + H+ + 2 e− |
⇌ |
N2H5+ + 2H2O |
+1.42 |
2 HIO(aq) + 2 H+ + 2 e− |
⇌ |
I2(s) + 2H2O |
+1.44 |
BrO3− + 5 H+ + 4 e− |
⇌ |
HBrO(aq) + 2H2O |
+1.45 |
ß-PbO2(s) + 4 H+ + 2 e− |
⇌ |
Pb2+ + 2H2O |
+1.460 |
a-PbO2(s) + 4 H+ + 2 e− |
⇌ |
Pb2+ + 2H2O |
+1.468 |
2 BrO3− + 12 H+ + 10 e− |
⇌ |
Br2(l) + 6H2O |
+1.48 |
2ClO3− + 12 H+ + 10 e− |
⇌ |
Cl2(g) + 6H2O |
+1.49 |
HClO(aq) + H+ + 2 e− |
⇌ |
Cl−(aq) + H2O |
+1.49 |
MnO4− + 8 H+ + 5 e− |
⇌ |
Mn2+ + 4H2O |
+1.51 |
HO2• + H+ + e− |
⇌ |
H2O2(aq) |
+1.51 |
Au3+ + 3 e− |
⇌ |
Au(s) |
+1.52 |
NiO2(s) + 4 H+ + 2 e− |
⇌ |
Ni2+ + 2 OH− |
+1.59 |
Ce4+ + e− |
⇌ |
Ce3+ |
+1.61 |
2 HClO(aq) + 2 H+ + 2 e− |
⇌ |
Cl2(g) + 2H2O |
+1.63 |
Ag2O3(s) + 6 H+ + 4 e− |
⇌ |
2 Ag+ + 3H2O |
+1.67 |
HClO2(aq) + 2 H+ + 2 e− |
⇌ |
HClO(aq) + H2O |
+1.67 |
Pb4+ + 2 e− |
⇌ |
Pb2+ |
+1.69 |
MnO4− + 4 H+ + 3 e− |
⇌ |
MnO2(s) + 2H2O |
+1.70 |
AgO(s) + 2 H+ + e− |
⇌ |
Ag+ + H2O |
+1.77 |
H2O2(aq) + 2 H+ + 2 e− |
⇌ |
2H2O |
+1.78 |
Co3+ + e− |
⇌ |
Co2+ |
+1.82 |
Au+ + e− |
⇌ |
Au(s) |
+1.83 |
BrO4− + 2 H+ + 2 e− |
⇌ |
BrO3− + H2O |
+1.85 |
Ag2+ + e− |
⇌ |
Ag+ |
+1.98 |
S2O82− + 2 e− |
⇌ |
2 SO42− |
+2.010 |
O3(g) + 2 H+ + 2 e− |
⇌ |
O2(g) + H2O |
+2.075 |
HMnO4− + 3 H+ + 2 e− |
⇌ |
MnO2(s) + 2H2O |
+2.09 |
XeO3(aq) + 6 H+ + 6 e− |
⇌ |
Xe(g) + 3H2O |
+2.12 |
H4XeO6(aq) + 8 H+ + 8 e− |
⇌ |
Xe(g) + 6 H2O |
+2.18 |
FeO42− + 3 e− + 8 H+ |
⇌ |
Fe3+ + 4H2O |
+2.20 |
XeF2(aq) + 2 H+ + 2 e− |
⇌ |
Xe(g) + 2HF(aq) |
+2.32 |
H4XeO6(aq) + 2 H+ + 2 e− |
⇌ |
XeO3(aq) + H2O |
+2.42 |
F2(g) + 2 e− |
⇌ |
2 F− |
+2.87 |
F2(g) + 2 H+ + 2 e− |
⇌ |
2 HF(aq) |
+3.05 |
KrF2(aq) + 2 e− |
⇌ |
Kr(g) + 2 F−(aq) |
+3.27 |