Tabela de Potenciais de Redução

Prévia do material em texto

Standard	
  Reduction	
  Potentials	
  at	
  298K	
  
Alphabetical	
  Sort	
  
Half-Reaction Eºred, V 
Ag(CN)2– + e–  Ag(s) + 2 CN– -0.31 
Ag(S2O3)23– + e–  Ag(s) + 2 S2O32– +0.01 
Ag+ + e–  Ag(s) +0.7991 
Ag2CrO4(s) + 2 e–  2 Ag(s) + CrO42– +0.446 
Ag2O(s) + H2O(l) + 2 e–  2 Ag(s) + 2 OH– +0.34 
AgBr(s) + e–  Ag(s) + Br– +0.095 
AgCl(s) + e–  Ag(s) + Cl– +0.2221 
AgI(s) + e–  Ag(s) + I– -0.151 
Al3+ + 3 e–  Al(s) -1.676 
Ba2+ + 2 e–  Ba(s) -2.90 
Bi2O3 + 3 H2O(l) + 6 e–  2Bi(s) + 6 OH– -0.46 
Bi3+ + 3 e–  Bi(s) +0.286 
BiO+ + 2 H+ + 3 e–  Bi(s) + H2O(l) +0.32 
Br2(aq) + 2 e–  2 Br– +1.0978 
Br2(l) + 2 e–  2 Br– +1.065 
BrO– + 3 H2O(l) + 2 e–  Br– + 2 OH– +0.76 
BrO3– + 3 H2O(l) + 6 e–  Br– + 6 OH– +0.61 
2 BrO3– + 12 H+ + 10 e–  6 H2O(l) + Br2(l) +1.5131 
Ca2+ + 2 e–  Ca(s) -2.87 
Cd(OH)2 + 2 e–  Cd(s) + 2 OH– -0.82 
Cd2+ + 2 e–  Cd(s) -0.4022 
Ce3+ + 3 e-  Ce(s) -2.48 
Ce4+ + e–  Ce3+ +1.61 
Cl2(g) + 2 e–  2Cl– +1.3601 
ClO– + H2O(l) + 2 e–  Cl– + OH– +0.89 
ClO2– + 2 H2O(l) + 4 e–  Cl– + 4 OH– +0.76 
ClO3– + 3 H2O(l) + 6 e–  Cl– + 6 OH– +0.62 
2 ClO3– + 12 H+ + 10 e–  Cl2 + 6 H2O(l) +1.47 
ClO4– + H2O(l) + 2 e–  ClO3– + 2 OH– +0.36 
2 CO2(g) + 2H+ + 2 e–  H2C2O4(aq) -0.49 
Co(OH)2 + 2 e–  Co(s) + 2 OH– -0.73 
Co2+ + 2 e–  Co(s) -0.277 
Co3+ + e–  Co2+ +1.842 
Cr2O72– + 14 H+ + 6 e–  2 Cr3+ + 7 H2O(l) +1.33 
Cr3+ + 3 e–  Cr(s) -0.74 
Cr3+ + e–  Cr2+ -0.41 
CrO42– + 4 H2O(l) + 3 e–  Cr(OH)3(s) + 5 OH– -0.13 
Cs+ + e–  Cs(s) -2.92 
Cu(OH)2(s) + 2 e–  Cu(s) + 2 OH– -0.22 
2 Cu(OH)2(s) + 2 e–  Cu2O(s) + 2 OH– + H2O(l) -0.09 
Cu+ + e–  Cu(s) +0.5180 
Cu2+ + 2 e–  Cu(s) +0.3394 
Cu2+ + e–  Cu+ +0.153 
CuCl(s) + e–  Cu(s) + Cl– +0.14 
CuCO3(s) + 2 e–  Cu(s) + CO32– +0.0541 
Standard	
  Reduction	
  Potentials	
  at	
  298K	
  
Alphabetical	
  Sort	
  
CuI(s) + e–  Cu(s) + I– -0.185 
F2(g) + 2 e–  2 F– +2.87 
F2(g) + 2 H+ + 2 e–  2 HF(aq) +3.06 
Fe(CN)63– + e–  Fe(CN)64– +0.3557 
Fe(OH)3 + e–  Fe(OH)2 + OH– -0.56 
Fe2+ + 2 e–  Fe(s) -0.440 
Fe3+ + e–  Fe2+ +0.769 
2 H+ + 2 e–  H2 (SHE) 0.0000 
2 H2O(l) + 2 e–  H2(g) + 2 OH– -0.83 
H2O2 + 2 H+ + 2 e–  2 H2O(l) +1.776 
2 HClO + 2 H+ + 2 e–  Cl2(g) + H2O(l) +1.63 
H2SO3 + 4 H+ + 4 e–  S(s) + 3 H2O(l) +0.45 
H3AsO4(aq) + 2 H+ + 2 e–  H3AsO3(aq) + H2O(l) +0.559 
H5IO6 + H+ + 2 e IO3– + 3 H2O(l) +1.64 
Hg2+ + 2 e–  Hg(l) +0.8519 
2 Hg2+ + 2 e–  Hg22+ +0.920 
Hg22+ + 2 e–  Hg(l) +0.789 
2 HgCl2 + 4 H+ + 2 e–  Hg2Cl2 + 2 Cl– +0.6011 
Hg2Cl2 + 2 e–  2 Cl– + 2 Hg +0.2680 
Hg2SO4 + 2 e–  2 Hg(l) + SO42– +0.6152 
HNO2(aq) + H+ + e–  NO(g) + H2O(l) +1.0362 
HO2– + H2O(l) + 2 e–  3 OH– +0.88 
HPbO2– + H2O(l) + 2 e–  Pb(s) + 3 OH– -0.54 
HSO4– + 3 H+ + 2 e–  H2O(l) + H2SO3(aq) +0.17 
I2(aq) + 2 e–  2 I– +0.6195 
I2(s) + 2 e–  2 I– +0.5345 
I3– + 2 e–  3 I– +0.5354 
IO– + H2O(l) + 2 e–  I– + 2 OH– +0.49 
IO3– + 3 H2O(l) + 6 v  I– + 6 OH– +0.26 
2 IO3– + 12 H+ + 10 e–  6 H2O(l) + I2(s) +1.2093 
K+ + e–  K(s) -2.925 
La3+ + 3 e–  La(s) -2.52 
Li+ + e–  Li(s) -3.05 
Mg2+ + 2 e–  Mg(s) -2.3568 
Mn2+ + 2 e–  Mn(s) -1.18 
MnO2 + 4 H+ + 2 e–  Mn2+ + 2 H2O(l) +1.23 
MnO4– + 4 H+ + 3 e–  MnO2(s) + 2 H2O(l) +1.70 
MnO4– + 8 H+ + 5 e–  4 H2O + Mn2+ +1.5119 
MnO4– + 2 H2O(l) + 3 e–  MnO2(s) + 4 OH– +0.59 
Mo3+ + 3 e–  Mo(s) -0.20 
N2(g) + 4 H2O(l) + 4 e–  4 OH– + N2H4(aq) -1.16 
N2(g) + 5 H+ + 4 e–  N2H5+(aq) -0.23 
Na+ + e–  Na(s) -2.7144 
Ni(OH)2 + 2 e–  Ni(s) + 2 OH– -0.72 
Ni2+ + 2 e–  Ni(s) -0.28 
NO3– + 2 H+ + e–  NO2(g) + H2O(l) +0.78 
Standard	
  Reduction	
  Potentials	
  at	
  298K	
  
Alphabetical	
  Sort	
  
NO3– + 3 H+ + 2 e–  HNO2(aq) + H2O(l) +0.9275 
NO3– + 4 H+ + 3 e–  NO(g) + 2 H2O(l) +0.96 
NO3– + H2O(l) + 2 e–  NO2– + 2 OH– +0.01 
O2 + 2 H+ + 2 e–  H2O2(l) +0.6237 
O2 + 2 H+ + 2 e–  H2O2(aq) +0.6945 
O2 + 4 H+ + 4 e–  2 H2O(l) +1.2288 
O2(g) + 2 H2O(l) + 4 e–  4 OH– +0.40 
O2(g) + H2O(l) + 2 e–  HO2– + OH– -0.08 
O3(g) + 2 H+ + 2 e–  O2(g) + H2O(l) +2.07 
Pb2+ + 2 e–  Pb(s) -0.1266 
PbO(s) + H2O(l) + 2 e–  Pb(s) + 2 OH– -0.58 
PbO2(s) + 4 H+ + 2 e–   Pb2+ + 2 H2O(l) +1.46 
PbO2(s) + HSO4– + 3 H+ + 2 e–  PbSO4(s) + 2 H2O(l) +1.685 
PbSO4(s) + H+ + 2 e–  Pb(s) + HSO4– -0.356 
PtCl42– + 2 e–  Pt(s) + 4 Cl– +0.73 
S(s) + 2 H+ + 2 e–  H2S(aq) +0.1739 
S(s) + 2 H+ + 2 e–  H2S(g) +0.141 
S(s) + H2O(l) + 2 e–  HS– + OH– -0.48 
S2O82– + 2 e- 2 SO42– +2.01 
S4O62– + 2 e–  2 S2O32– +0.0238 
Saturated Calomel (SCE) +0.2412 
SbO+ + 2 H+ + 3 e–  Sb(s) + H2O(l) +0.21 
Sn2+ + 2 e-  Sn(s, white) -0.136 
Sn4+ + 2 e–  Sn2+ +0.1539 
SO42– + 4 H+ + 2 e–  H2O(l) + H2SO3(aq) +0.1576 
Sr2+ + 2 e–  Sr(s) -2.89 
Ti2+ + 2 e–  Ti(s) -1.63 
TiO2+ + 2 H+ + e–  Ti3+ + H2O(l) +0.10 
Tl+ + e–  Tl(s) -0.3358 
U4+ + e–  U3+ -0.61 
UO22+ + 4 H+ + 2 e–  U4+ + 2 H2O(l) +0.33 
V3+ + e–  V2+ -0.26 
VO2+ + 2 H+ + e–  V3+ + H2O(l) +0.36 
VO2+ + 2 H+ + e–  VO2+ + H2O(l) +1.0004 
Zn2+ + 2 e–  Zn(s) -0.7621 
Zr4+ + 4 e–  Zr(s) -1.53