Стандартні електродні (напівклітинні) потенціали
Стандартні електродні (напівклітинні) потенціали | |
---|---|
Половинна реакція | Е° (В) |
Ag++e−⟶Ag | +0,7996 |
AgCl+e−⟶Ag+Cl− | +0,22233 |
[Ag(CN)2]−+e−⟶Ag+2CN− | −0.31 |
Ag2CrO4+2e−⟶2Ag+CrO2−4 | +0.45 |
[Ag(NH3)2]++e−⟶Ag+2NH3 | +0.373 |
[Ag(S2O3)2]3++e−⟶Ag+2S2O2−3 | +0.017 |
[AlF6]3−+3e−⟶Al+6F− | −2.07 |
Al3++3e−⟶Al | −1,662 |
Am3++3e−⟶Am | −2.048 |
Au3++3e−⟶Au | +1.498 |
Au++e−⟶Au | +1.692 |
Ba2++2e−⟶Ba | −2.912 |
Be2++2e−⟶Be | −1,847 |
Br2(aq)+2e−⟶2Br− | +1.0873 |
Ca2++2e−⟶Ca | −2.868 |
Ce3+3e−⟶Ce | −2.483 |
Ce4++e−⟶Ce3+ | +1.61 |
Cd2++2e−⟶Cd | −0.4030 |
[Cd(CN)4]2−+2e−⟶Cd+4CN− | −1.09 |
[Cd(NH3)4]2++2e−⟶Cd+4NH3 | −0.61 |
CdS+2e−⟶Cd+S2− | −1.17 |
Cl2+2e−⟶2Cl− | +1.35827 |
ClO−4+H2O+2e−⟶ClO−3+2OH− | +0.36 |
ClO−3+H2O+2e−⟶ClO−2+2OH− | +0.33 |
ClO−2+H2O+2e−⟶ClO−+2OH− | +0.66 |
ClO−+H2O+2e−⟶Cl−+2OH− | +0.89 |
ClO−4+2H3O++2e−⟶ClO−3+3H2O | +1.189 |
ClO−3+3H3O++2e−⟶HClO2+4H2O | +1.21 |
HClO+H3O++2e−⟶Cl−+2H2O | +1.482 |
HClO+H3O++e−⟶12Cl2+2H2O | +1.611 |
HClO2+2H3O++2e−⟶HClO+3H2O | +1.628 |
Co3++e−⟶Co2+(2mol//H2SO4) | +1.83 |
Co2++2e−⟶Co | −0.28 |
[Co(NH3)6]3++e−⟶[Co(NH3)6]2+ | +0.1 |
Co(OH)3+e−⟶Co(OH)2+OH− | +0.17 |
Cr3+3e−⟶Cr | −0.744 |
Cr3++e−⟶Cr2+ | −0.407 |
Cr2++2e−⟶Cr | −0.913 |
[Cu(CN)2]−+e−⟶Cu+2CN− | −0.43 |
CrO2−4+4H2O+3e−⟶Cr(OH)3+5OH− | −0,13 |
Cr2O2−7+14H3O++6e−⟶2Cr3++21H2O | +1.232 |
[Cr(OH)4]−+3e−⟶Cr+4OH− | −1.2 |
Cr(OH)3+3e−⟶Cr+3OH− | −1.48 |
Cu2++e−⟶Cu+ | +0.153 |
Cu2++2e−⟶Cu | +0.34 |
Cu++e−⟶Cu | +0.521 |
F2+2e−⟶2F− | +2.866 |
Fe2++2e−⟶Fe | −0,447 |
Fe3++e−⟶Fe2+ | +0.771 |
[Fe(CN)6]3−+e−⟶[Fe(CN)6]4− | +0.36 |
Fe(OH)2+2e−⟶Fe+2OH− | −0.88 |
FeS+2e−⟶Fe+S2− | −1.01 |
Ga3++3e−⟶Ga | −0.549 |
Gd3++3e−⟶Gd | −2.279 |
12H2+e−⟶H− | −2.23 |
2H2O+2e−⟶H2+2OH− | −0,8277 |
H2O2+2H3O++2e−⟶4H2O | +1.776 |
2H3O++2e−⟶H2+2H2O | 0.00 |
HO−2+H2O+2e−⟶3OH− | +0.878 |
Hf4++4e−⟶Hf | −1.55 |
Hg2++2e−⟶Hg | +0,851 |
2Hg2++2e−⟶Hg2+2 | +0.92 |
Hg2+2+2e−⟶2Hg | +0.7973 |
[HgBr4]2−+2e−⟶Hg+4Br− | +0.21 |
Hg2Cl2+2e−⟶2Hg+2Cl− | +0,26808 |
[Hg(CN)4]2−+2e−⟶Hg+4CN− | −0.37 |
[HgI4]2−+2e−⟶Hg+4I− | −0,04 |
HgS+2e−⟶Hg+S2− | −0,70 |
I2+2e−⟶2I− | +0.535 |
In3++3e−⟶In | −0,3382 |
K++e−⟶K | −2.931 |
La3++3e−⟶La | −2.52 |
Li++e−⟶Li | −3.04 |
Lu3++3e−⟶Lu | −2.28 |
Mg2++2e−⟶Mg | −2.372 |
Mn2++2e−⟶Mn | −1.185 |
MnO2+2H2O+2e−⟶Mn(OH)2+2OH− | −0,05 |
MnO−4+2H2O+3e−⟶MnO2+4OH− | +0.558 |
MnO2+4H++2e−⟶Mn2++2H2O | +1.23 |
MnO−4+8H++5e−⟶Mn2++4H2O | +1.507 |
Na++e−⟶Na | −2.71 |
Nd3++3e−⟶Nd | −2.323 |
Ni2++2e−⟶Ni | −0,257 |
[Ni(NH3)6]2++2e−⟶Ni+6NH3 | −0.49 |
NiO2+4H++2e−⟶Ni2++2H2O | +1.593 |
NiO2+2H2O+2e−⟶Ni(OH)2+2OH− | +0.49 |
NiS+2e−⟶Ni+S2− | +0.76 |
NO−3+4H++3e−⟶NO+2H2O | +0,957 |
NO−3+3H++2e−⟶HNO2+H2O | +0.92 |
NO−3+H2O+2e−⟶NO−2+2OH− | +0.10 |
Np3++3e−⟶Np | −1.856 |
O2+2H2O+4e−⟶4OH− | +0,401 |
\ce{O2 + 2H+ + 2e- ⟶H2O2} | +0,695 |
\ce{O2 + 4H+ + 4e- ⟶2H2O} | +1.229 |
\ce{Pb^2+ + 2e- ⟶Pb} | −0,162 |
\ce{PbO2 + SO4^2- + 4H+ + 2e- ⟶PbSO4 + 2H2O} | +1.69 |
\ce{PbS + 2e- ⟶Pb + S^2-} | −0,95 |
\ce{PbSO4 + 2e- ⟶Pb + SO4^2-} | −0,3505 |
\ce{Pd^2+ + 2e- ⟶Pd} | +0,987 |
\ce{[PdCl4]^2- + 2e- ⟶Pd + 4Cl-} | +0.591 |
\ce{Pt^2+ + 2e- ⟶Pt} | +1.20 |
\ce{[PtBr4]^2- + 2e- ⟶Pt + 4Br-} | +0.58 |
\ce{[PtCl4]^2- + 2e- ⟶Pt + 4Cl-} | +0.755 |
\ce{[PtCl6]^2- + 2e- ⟶[PtCl4]^2- + 2Cl-} | +0.68 |
\ce{Pu^3 + 3e- ⟶Pu} | −2.03 |
\ce{Ra^2+ + 2e- ⟶Ra} | −2.92 |
\ce{Rb+ + e- ⟶Rb} | −2.98 |
\ce{[RhCl6]^3- + 3e- ⟶Rh + 6Cl-} | +0.44 |
\ce{S + 2e- ⟶S^2-} | −0,47627 |
\ce{S + 2H+ + 2e- ⟶H2S} | +0.142 |
\ce{Sc^3+ + 3e- ⟶Sc} | −2.09 |
\ce{Se + 2H+ + 2e- ⟶H2Se} | −0.399 |
\ce{[SiF6]^2- + 4e- ⟶Si + 6F-} | −1.2 |
\ce{SiO3^2- + 3H2O + 4e- ⟶Si + 6OH-} | −1,697 |
\ce{SiO2 + 4H+ + 4e- ⟶Si + 2H2O} | −0.86 |
\ce{Sm^3+ + 3e- ⟶Sm} | −2.304 |
\ce{Sn^4+ + 2e- ⟶Sn^2+} | +0.151 |
\ce{Sn^2+ + 2e- ⟶Sn} | −0,1375 |
\ce{[SnF6]^2- + 4e- ⟶Sn + 6F-} | −0,25 |
\ce{SnS + 2e- ⟶Sn + S^2-} | −0,94 |
\ce{Sr^2+ + 2e- ⟶Sr} | −2.89 |
\ce{TeO2 + 4H+ + 4e- ⟶Te + 2H2O} | +0.593 |
\ce{Th^4+ + 4e- ⟶Th} | −1,90 |
\ce{Ti^2+ + 2e- ⟶Ti} | −1.630 |
\ce{U^3+ + 3e- ⟶U} | −1.79 |
\ce{V^2+ + 2e- ⟶V} | −1.19 |
\ce{Y^3+ + 3e- ⟶Y} | −2.37 |
\ce{Zn^2+ + 2e- ⟶Zn} | −0.7618 |
\ce{[Zn(CN)4]^2- + 2e- ⟶Zn + 4CN-} | −1.26 |
\ce{[Zn(NH3)4]^2+ + 2e- ⟶Zn + 4NH3} | −1.04 |
\ce{Zn(OH)2 + 2e- ⟶Zn + 2OH-} | −1,245 |
\ce{[Zn(OH)4]^2 + 2e- ⟶Zn + 4OH-} | −1.199 |
\ce{ZnS + 2e- ⟶Zn + S^2-} | −1.40 |
\ce{Zr^4 + 4e- ⟶Zr} | −1.539 |