Table of Common Standard Reduction Potentials

Standard reduction potential
Ohiostandard/CC-BY-SA-3.0/Wikimedia Commons 

This table is an alphabetical listing of common reduction half-reactions and their standard reduction potential, E0, at 25 C, and 1 atmosphere of pressure.
The standard reduction potentials are all based on the standard hydrogen electrode. Standard oxidation potentials can be calculated by reversing the half-reactions and changing the sign of the standard reduction potential.
E0REDUCTION = - E0OXIDATION

Reduction Half-Reaction Reduction Potential - E0 in Volts
Ag + + e - → Ag 0.7996
Ag 2+ + e - → Ag + 1.980
Ag 3+ + e - → Ag 2+ 1.8
AgBr + e - → Ag + Br - 0.0713
AgCl + e - → Ag + Cl - 0.2223
AgF + e - → Ag + F - 0.779
AgI + e - → Ag + I - -0.1522
AgNO 2 + e - → Ag + 2 NO 2 - 0.564
Ag 2S + 2 e - → 2 Ag + S 2- -0.691
Ag 2S + 2 H + + 2 e - → 2 Ag + H 2S -0.0366
Al 3+ + 3 e - → Al -1.662
Br 2(aq) +2 e - → 2 Br - 1.0873
Br 2(ℓ) +2 e - → 2 Br - 1.066
Ca 2+ + 2 e - → Ca -2.868
Cd 2+ + 2 e - → Cd -0.4030
Cl 2 + 2 e - → 2 Cl -(g) 1.3583
Cr 2+ + 2 e - → Cr -0.913
Cr 3+ + e - → Cr 2+ -0.407
Cr 3+ + 3 e - → Cr -0.744
Cr 2O 7 2- + 14 H + + 6 e - → 2 Cr 3+ + 7 H 2O 1.36
Cu + + e - → Cu -3.026
Cu 2+ + e - → Cu + 0.153
Cu 2+ + 2 e - → Cu 0.3419
Cu 3+ + e - → Cu 2+ 2.4
F 2 + 2 H + + 2 e - → 2 HF 3.053
F 2 + 2 e - → 2 F - 2.866
Fe 2+ + 2 e - → Fe -0.447
Fe 3+ + 3 e - → Fe -0.037
Fe 3+ + e - → Fe 2+ 0.771
2 H + + 2 e - → H 2 0.0000
H 2O 2 + 2 H + + 2 e - → 2 H 2O 1.776
I 2 + 2 e - → 2 I - 0.5355
K + + e - → K -2.931
Li + + e - → Li -3.0401
Mg + + e - → Mg -2.70
Mg 2+ + 2 e - → Mg -2.372
Mn 2+ + 2 e - → Mn -1.185
Mn 3+ + e - → Mn 2+ 1.5415
Na + + e - → Na -2.71
Ni 2+ + 2 e - → Ni -0.257
O 2 + 2 H + + 2 e - → 2 H 2O 2 0.695
O 2 + 4 H + + 4 e - → H 2O 1.229
Pb 2+ + 2 e - → Pb -0.1262
PbSO 4 + 2 e - → Pb + SO 4 2- -0.3588
Pt 2+ + 2 e - → Pt 1.18
S + 2 e - → S 2- -0.4284
S + 2 H + + 2 e - → H 2S 0.142
SO 4 2- + H 2 + 2 e - → SO 3 2- + 2 OH - -0.93
Zn 2+ + 2 e - → Zn -0.7618

Reference: Handbook of Chemistry and Physics, 89th Edition, CRC Press 2008

Format
mla apa chicago
Your Citation
Helmenstine, Anne Marie, Ph.D. "Table of Common Standard Reduction Potentials." ThoughtCo, Aug. 27, 2020, thoughtco.com/table-of-common-standard-reduction-potentials-603964. Helmenstine, Anne Marie, Ph.D. (2020, August 27). Table of Common Standard Reduction Potentials. Retrieved from https://www.thoughtco.com/table-of-common-standard-reduction-potentials-603964 Helmenstine, Anne Marie, Ph.D. "Table of Common Standard Reduction Potentials." ThoughtCo. https://www.thoughtco.com/table-of-common-standard-reduction-potentials-603964 (accessed April 17, 2021).