Dados de potencial de eletrodo padrão

Semi-reação

Sr+ + e− ⇄ Sr+

Ca+ + e− ⇄ Ca

Pr3+ + e− ⇄ Pr2+

3⁄​2 N2(g) + H+ + e− ⇄ HN3(aq)

Li+ + e− ⇄ Li(s)

N2(g) + 4 H2O + 2 e− ⇄ 2 NH2OH(aq) + 2 OH−

Cs+ + e− ⇄ Cs(s)

Ca(OH)2 + 2 e− ⇄ Ca + 2 OH-

Er3+ + e− ⇄ Er2+

Ba(OH)2 + 2 e− ⇄ Ba + 2 OH-

Rb+ + e− ⇄ Rb(s)

K+ + e− ⇄ K(s)

Ba2+ + 2 e− ⇄ Ba(s)

La(OH)3(s) + 3 e− ⇄ La(s) + 3 OH−

Fr+ + e− ⇄ Fr

Sr2+ + 2 e− ⇄ Sr(s)

Sr(OH)2 + 2 e− ⇄ Sr + 2 OH-

Ca2+ + 2 e− ⇄ Ca(s)

Eu2+ + 2 e− ⇄ Eu(s)

Ra2+ + 2 e− ⇄ Ra(s)

Ho3+ + e− ⇄ Ho2+

Bk3+ + e− ⇄ Bk2+

Yb2+ + 2 e− ⇄ Yb

Na+ + e− ⇄ Na(s)

Mg+ + e− ⇄ Mg

Nd3+ + e− ⇄ Nd2+

Mg(OH)2 + 2 e− ⇄ Mg + 2 OH-

Sm2+ + 2 e− ⇄ Sm

Be2O32- + 3 H2O + 4 e− ⇄ 2 Be + 6 OH-

Pm3+ + e− ⇄ Pm2+

Dy3+ + e− ⇄ Dy2+

No2+ + 2 e− ⇄ No

HfO(OH)2 + H2O + 4 e− ⇄ Hf + 4 OH-

Th(OH)4 + 4 e− ⇄ Th + 4 OH-

Md2+ + 2 e− ⇄ Md

Tm2+ + 2 e− ⇄ Tm

La3+ + 3 e− ⇄ La(s)

Y3+ + 3 e− ⇄ Y(s)

Mg2+ + 2 e− ⇄ Mg(s)

ZrO(OH)2(s) + H2O + 4 e− ⇄ Zr(s) + 4 OH−

Pr3+ + 3 e− ⇄ Pr

Ce3+ + 3 e− ⇄ Ce

Er3+ + 3 e− ⇄ Er

Ho3+ + 3 e− ⇄ Ho

H2AlO3- + H2O + 3 e− ⇄ Al + 4 OH-

Nd3+ + 3 e− ⇄ Nd

Tm3+ + 3 e− ⇄ Tm

Al(OH)4− + 3 e− ⇄ Al(s) + 4 OH−

Al(OH)3(s) + 3 e− ⇄ Al(s) + 3 OH−

Sm3+ + 3 e− ⇄ Sm

Fm2+ + 2 e− ⇄ Fm

Am3+ + e− ⇄ Am2+

Dy3+ + 3 e− ⇄ Dy

Lu3+ + 3 e− ⇄ Lu

Tb3+ + 3 e− ⇄ Tb

Gd3+ + 3 e− ⇄ Gd

H2(g) + 2 e− ⇄ 2 H−

Es2+ + 2 e− ⇄ Es

Pm2+ + 2 e− ⇄ Pm

Tm3+ + e− ⇄ Tm2+

Dy2+ + 2 e− ⇄ Dy

Ac3+ + 3 e− ⇄ Ac(s)

Yb3+ + 3 e− ⇄ Yb

Cf2+ + 2 e− ⇄ Cf

Nd2+ + 2 e− ⇄ Nd

Ho2+ + 2 e− ⇄ Ho

Sc3+ + 3 e− ⇄ Sc(s)

AlF63- + 3 e− ⇄ Al + 6 F-

Am3+ + 3 e− ⇄ Am

Cm3+ + 3 e− ⇄ Cm

Pu3+ + 3 e− ⇄ Pu

Pr2+ + 2 e− ⇄ Pr

Er2+ + 2 e− ⇄ Er

Eu3+ + 3 e− ⇄ Eu

Lr3+ + 3 e− ⇄ Lr

Cf3+ + 3 e− ⇄ Cf

Es3+ + 3 e− ⇄ Es

Pa4+ + e− ⇄ Pa3+

Am2+ + 2 e− ⇄ Am

Th4+ + 4 e− ⇄ Th

Fm3+ + 3 e− ⇄ Fm

Np3+ + 3 e− ⇄ Np

Be2+ + 2 e− ⇄ Be(s)

H2PO2- + e− ⇄ P + 2 OH-

U3+ + 3 e− ⇄ U(s)

Sr2+ + 2 e− ⇄ Sr/Hg[nota 4]

H2BO3- + H2O + 3 e− ⇄ B + 4 OH-

ThO2 + 4H+ + 4 e− ⇄ Th + 2 H2O

HfO2+ + 2 H+ + 4 e− ⇄ Hf + H2O

HPO32- + 2 H2O + 3 e− ⇄ P + 5 OH-

SiO32- + H2O + 4 e− ⇄ Si + 6 OH-

Al3+ + 3 e− ⇄ Al(s)

Ti2+ + 2 e− ⇄ Ti(s)

ZrO2(s) + 4 H+ + 4 e− ⇄ Zr(s) + 2 H2O

Zr4+ + 4 e− ⇄ Zr(s)

Ti3+ + 3 e− ⇄ Ti(s)

TiO(s) + 2 H+ + 2 e− ⇄ Ti(s) + H2O

Ti2O3(s) + 2 H+ + 2 e− ⇄ 2 TiO(s) + H2O

Zn(OH)42− + 2 e− ⇄ Zn(s) + 4 OH−

Mn2+ + 2 e− ⇄ Mn(s)

Fe(CN)64− + 6 H+ + 2 e− ⇄ Fe(s) + 4HCN(aq)

Te(s) + 2 e− ⇄ Te2−

V2+ + 2 e− ⇄ V(s)

Nb3+ + 3 e− ⇄ Nb(s)

Sn(s) + 4 H+ + 4 e− ⇄ SnH4(g)

SiO2(s) + 4 H+ + 4 e− ⇄ Si(s) + 2 H2O

B(OH)3(aq) + 3 H+ + 3 e− ⇄ B(s) + 3 H2O

Fe(OH)2(s) + 2 e− ⇄ Fe(s) + 2 OH−

Fe2O3(s) + 3 H2O + 2 e− ⇄ 2Fe(OH)2(s) + 2 OH−

TiO2+ + 2 H+ + 4 e− ⇄ Ti(s) + H2O

2 H2O + 2 e− ⇄ H2(g) + 2 OH−

Bi(s) + 3 H+ + 3 e− ⇄ BiH3

Zn2+ + 2 e− ⇄ Zn(Hg)[nota 4]

Zn2+ + 2 e− ⇄ Zn(s)

Ta2O5(s) + 10 H+ + 10 e− ⇄ 2 Ta(s) + 5 H2O

Cr3+ + 3 e− ⇄ Cr(s)

[Au(CN)2]− + e− ⇄ Au(s) + 2 CN−

Ta3+ + 3 e− ⇄ Ta(s)

PbO(s) + H2O + 2 e− ⇄ Pb(s) + 2 OH−

2 TiO2(s) + 2 H+ + 2 e− ⇄ Ti2O3(s) + H2O

Ga3+ + 3 e− ⇄ Ga(s)

U4+ + e− ⇄ U3+

H3PO2(aq) + H+ + e− ⇄ P(branco)[nota 2] + 2 H2O

H3PO3(aq) + 2 H+ + 2 e− ⇄ H3PO2(aq) + H2O

H3PO3(aq) + 3 H+ + 3 e− ⇄ P(vermelho)[nota 2] + 3 H2O

Fe2+ + 2 e− ⇄ Fe(s)

2 CO2(g) + 2 H+ + 2 e− ⇄ HOOCCOOH(aq)

Cr3+ + e− ⇄ Cr2+

Cd2+ + 2 e− ⇄ Cd(s)

GeO2(s) + 2 H+ + 2 e− ⇄ GeO(s) + H2O

Cu2O(s) + H2O + 2 e− ⇄ 2 Cu(s) + 2 OH−

PbSO4(s) + 2 e− ⇄ Pb(s) + SO42−

PbSO4(s) + 2 e− ⇄ Pb(Hg) + SO42−

Eu3+ + e− ⇄ Eu2+

In3+ + 3 e− ⇄ In(s)

Tl+ + e− ⇄ Tl(s)

Ge(s) + 4 H+ + 4 e− ⇄ GeH4(g)

Co2+ + 2 e− ⇄ Co(s)

H3PO4(aq) + 2 H+ + 2 e− ⇄ H3PO3(aq) + H2O

V3+ + e− ⇄ V2+

Ni2+ + 2 e− ⇄ Ni(s)

As(s) + 3 H+ + 3 e− ⇄ AsH3(g)

AgI(s) + e− ⇄ Ag(s) + I−

MoO2(s) + 4 H+ + 4 e− ⇄ Mo(s) + 2 H2O

Si(s) + 4 H+ + 4 e− ⇄ SiH4(g)

Sn2+ + 2 e− ⇄ Sn(s)

O2(g) + H+ + e− ⇄ HO2•(aq)

Pb2+ + 2 e− ⇄ Pb(s)

WO2(s) + 4 H+ + 4 e− ⇄ W(s) + 2 H2O

P(red) + 3 H+ + 3 e− ⇄ PH3(g)

CO2(g) + 2 H+ + 2 e− ⇄ HCOOH(aq)

Se(s) + 2 H+ + 2 e− ⇄ H2Se(g)

CO2(g) + 2 H+ + 2 e− ⇄ CO(g) + H2O

SnO(s) + 2 H+ + 2 e− ⇄ Sn(s) + H2O

SnO2(s) + 2 H+ + 2 e− ⇄ SnO(s) + H2O

WO3(aq) + 6 H+ + 6 e− ⇄ W(s) + 3 H2O

P(branco) + 3 H+ + 3 e− ⇄ PH3(g)

Fe3+ + 3 e− ⇄ Fe(s)

HCOOH(aq) + 2 H+ + 2 e− ⇄ HCHO(aq) + H2O

2 H+ + 2 e− ⇄ H2(g)

AgBr(s) + e− ⇄ Ag(s) + Br−

S4O62− + 2 e− ⇄ 2 S2O32−

Fe3O4(s) + 8 H+ + 8 e− ⇄ 3 Fe(s) + 4 H2O

N2(g) + 2 H2O + 6 H+ + 6 e− ⇄ 2 NH4OH(aq)

HgO(s) + H2O + 2 e− ⇄ Hg(l) + 2 OH−

Cu(NH3)42+ + e− ⇄ Cu(NH3)2+ + 2 NH3

Ru(NH3)63+ + e− ⇄ Ru(NH3)62+

N2H4(aq) + 4 H2O + 2 e− ⇄ 2 NH4+ + 4 OH−

H2MoO4(aq) + 6 H+ + 6 e− ⇄ Mo(s) + 4 H2O

Ge4+ + 4 e− ⇄ Ge(s)

C(s) + 4 H+ + 4 e− ⇄ CH4(g)

HCHO(aq) + 2 H+ + 2 e− ⇄ CH3OH(aq)

S(s) + 2 H+ + 2 e− ⇄ H2S(g)

Sn4+ + 2 e− ⇄ Sn2+

Cu2+ + e− ⇄ Cu+

HSO4− + 3 H+ + 2 e− ⇄ SO2(aq) + 2 H2O

UO22+ + e− ⇄ UO2+

SO42− + 4 H+ + 2 e− ⇄ SO2(aq) + 2 H2O

TiO2+ + 2 H+ + e− ⇄ Ti3+ + H2O

SbO+ + 2 H+ + 3 e− ⇄ Sb(s) + H2O

AgCl(s) + e− ⇄ Ag(s) + Cl−

H3AsO3(aq) + 3 H+ + 3 e− ⇄ As(s) + 3 H2O

GeO(s) + 2 H+ + 2 e− ⇄ Ge(s) + H2O

UO2+ + 4 H+ + e− ⇄ U4+ + 2 H2O

Re3+ + 3 e− ⇄ Re(s)

Bi3+ + 3 e− ⇄ Bi(s)

VO2+ + 2 H+ + e− ⇄ V3+ + H2O

Cu2+ + 2 e− ⇄ Cu(s)

[Fe(CN)6]3− + e− ⇄ [Fe(CN)6]4−

O2(g) + 2 H2O + 4 e− ⇄ 4 OH−(aq)

H2MoO4 + 6 H+ + 3 e− ⇄ Mo3+ + 2 H2O

CH3OH(aq) + 2 H+ + 2 e− ⇄ CH4(g) + H2O

SO2(aq) + 4 H+ + 4 e− ⇄ S(s) + 2 H2O

Cu+ + e− ⇄ Cu(s)

CO(g) + 2 H+ + 2 e− ⇄ C(s) + H2O

I3− + 2 e− ⇄ 3 I−

I2(s) + 2 e− ⇄ 2 I−

[AuI4]− + 3 e− ⇄ Au(s) + 4 I−

H3AsO4(aq) + 2 H+ + 2 e− ⇄ H3AsO3(aq) + H2O

[AuI2]− + e− ⇄ Au(s) + 2 I−

MnO4− + 2 H2O + 3 e− ⇄ MnO2(s) + 4 OH−

S2O32 − + 6 H+ + 4 e− ⇄ 2 S(s) + 3 H2O

Fc+[nota 3] + e− ⇄ Fc(s)

H2MoO4(aq) + 2 H+ + 2 e− ⇄ MoO2(s) + 2 H2O

* + 2 H+ + 2 e− ⇄

O2(g) + 2 H+ + 2 e− ⇄ H2O2(aq)

Tl3+ + 3 e− ⇄ Tl(s)

PtCl62− + 2 e− ⇄ PtCl42− + 2 Cl−

H2SeO3(aq) + 4 H+ + 4 e− ⇄ Se(s) + 3 H2O

PtCl42− + 2 e− ⇄ Pt(s) + 4 Cl−

Fe3+ + e− ⇄ Fe2+

Ag+ + e− ⇄ Ag(s)

Hg22+ + 2 e− ⇄ 2 Hg(l)

NO3−(aq) + 2 H+ + e− ⇄ NO2(g) + H2O

FeO42− + 5 H2O + 6 e− ⇄ Fe2O3(s) + 10 OH−

[AuBr4]− + 3 e− ⇄ Au(s) + 4 Br−

Hg2+ + 2 e− ⇄ Hg(l)

[IrCl6]2- + e− ⇄ [IrCl6]3-

MnO4− + H+ + e− ⇄ HMnO4−

2 Hg2+ + 2 e− ⇄ Hg22+

Pd2+ + 2 e− ⇄ Pd(s)

[AuCl4]− + 3 e− ⇄ Au(s) + 4 Cl−

MnO2(s) + 4 H+ + e− ⇄ Mn3+ + 2 H2O

[AuBr2]− + e− ⇄ Au(s) + 2 Br−

[HXeO6]3− + 2 H2O + 2 e− + ⇄ [HXeO4]− + 4 OH−

H6TeO6(aq) + 2 H+ + 2 e− ⇄ TeO2(s) + 4 H2O

Br2(l) + 2 e− ⇄ 2 Br−

Br2(aq) + 2 e− ⇄ 2 Br−

IO3− + 5 H+ + 4 e− ⇄ HIO(aq) + 2 H2O

[AuCl2]− + e− ⇄ Au(s) + 2 Cl−

HSeO4− + 3 H+ + 2 e− ⇄ H2SeO3(aq) + H2O

Ag2O(s) + 2 H+ + 2 e− ⇄ 2 Ag(s) + H2O

ClO3− + 2 H+ + e− ⇄ ClO2(g) + H2O

[HXeO6]3− + 5 H2O + 8 e− ⇄ Xe(g) + 11 OH−

Pt2+ + 2 e− ⇄ Pt(s)

ClO2(g) + H+ + e− ⇄ HClO2(aq)

2 IO3− + 12 H+ + 10 e− ⇄ I2(s) + 6 H2O

ClO4− + 2 H+ + 2 e− ⇄ ClO3− + H2O

O2(g) + 4 H+ + 4 e− ⇄ 2 H2O

MnO2(s) + 4 H+ + 2 e− ⇄ Mn2+ + 2 H2O

[HXeO4]− + 3 H2O + 6 e− ⇄ Xe(g) + 7 OH−

Tl3+ + 2 e− ⇄ Tl+

Cr2O72− + 14 H+ + 6 e− ⇄ 2 Cr3+ + 7 H2O

Cl2(g) + 2 e− ⇄ 2 Cl−

CoO2(s) + 4 H+ + e− ⇄ Co3+ + 2 H2O

2 NH3OH+ + H+ + 2 e− ⇄ N2H5+ + 2 H2O

2 HIO(aq) + 2 H+ + 2 e− ⇄ I2(s) + 2 H2O

Ce4+ + e− ⇄ Ce3+

BrO3− + 5 H+ + 4 e− ⇄ HBrO(aq) + 2 H2O

β-PbO2(s) + 4 H+ + 2 e− ⇄ Pb2+ + 2 H2O

α-PbO2(s) + 4 H+ + 2 e− ⇄ Pb2+ + 2 H2O

2 BrO3− + 12 H+ + 10 e− ⇄ Br2(l) + 6 H2O

2ClO3− + 12 H+ + 10 e− ⇄ Cl2(g) + 6 H2O

MnO4− + 8 H+ + 5 e− ⇄ Mn2+ + 4 H2O

HO2• + H+ + e− ⇄ H2O2(aq)

Au3+ + 3 e− ⇄ Au(s)

NiO2(s) + 4 H+ + 2 e− ⇄ Ni2+ + 2 OH−

2 HClO(aq) + 2 H+ + 2 e− ⇄ Cl2(g) + 2 H2O

Ag2O3(s) + 6 H+ + 4 e− ⇄ 2 Ag+ + 3 H2O

HClO2(aq) + 2 H+ + 2 e− ⇄ HClO(aq) + H2O

Pb4+ + 2 e− ⇄ Pb2+

MnO4− + 4 H+ + 3 e− ⇄ MnO2(s) + 2 H2O

AgO(s) + 2 H+ + e− ⇄ Ag+ + H2O

H2O2(aq) + 2 H+ + 2 e− ⇄ 2 H2O

Co3+ + e− ⇄ Co2+

Au+ + e− ⇄ Au(s)

BrO4− + 2 H+ + 2 e− ⇄ BrO3− + H2O

Ag2+ + e− ⇄ Ag+

S2O82− + 2 e− ⇄ 2 SO42−

O3(g) + 2 H+ + 2 e− ⇄ O2(g) + H2O

HMnO4− + 3 H+ + 2 e− ⇄ MnO2(s) + 2 H2O

XeO3(aq) + 6 H+ + 6 e− ⇄ Xe(g) + 3 H2O

H4XeO6(aq) + 8 H+ + 8 e− ⇄ Xe(g) + 6 H2O

FeO42− + 3 e− + 8 H+ ⇄ Fe3+ + 4 H2O

XeF2(aq) + 2 H+ + 2 e− ⇄ Xe(g) + 2HF(aq)

H4XeO6(aq) + 2 H+ + 2 e− ⇄ XeO3(aq) + H2O

F2(g) + 2 e− ⇄ 2 F−

F2(g) + 2 H+ + 2 e− ⇄ 2 HF(aq)