Standard electrode potentials of metals at 25 °C (table)

Reference table of electrode potentials of metals in General and inorganic chemistry contains: electrodes, electrode reactions and standard potential. Intended for pupils and students.

Electrode

Electrode reaction

Potentials Е°, В

Li / Li+

Li+ + e-= Li

-3,045

Rb / Rb+

Rb+ + e-= Rb

-2,925

K / K+

K+ + e-= K

-2,924

Cs / Cs+

Cs+ + e-= Cs

-2,923

Ba / Ba2+

Ba2+ + 2e-= Ba

-2,905

Sr / Sr2+

Sr2+ + 2e-= Sr

-2,888

Ca / Ca2+

Ca2+ + 2e-= Ca

-2,866

Na / Na+

Na+ + e-= Na

-2,714

Mg / Mg2+

Mg2+ + 2e-= Mg

-2,363

Sc / Sc3+

Sc3+ +3e-= Sc

-2,077

Be / Be2+

Be2+ + 2e-= Be

-1,847

Al / Al3+

Al3+ + 3e-= Al

-1,660

Mn / Mn2+

Mn2+ + 2e-= Mn

-1,179

Cr / Cr2+

Cr2+ + 2e-= Cr

-0,913

Zn / Zn2+

Zn2+ + 2e-= Zn

-0,760

Fe / Fe2+

Fe2+ + 2e-= Fe

-0,440

Cd / Cd2+

Cd2+ + 2e-= Cd

-0,400

Co / Co2+

Co2+ + 2e-= Co

-0,277

Ni / Ni2+

Ni2+ + 2e-= Ni

-0,250

Sn / Sn2+

Sn2+ + 2e-= Sn

-0,136

Pb / Pb2+

Pb2+ + 2e-= Pb

-0,126

H2 / H+

2H+ + 2e-= H2

 0,000

Sb / Sb3+

Sb3+ + 3e-= Sb

+0,2

Bi / Bi3+

Bi3+ + 3e-= Bi

+0,23

Cu / Cu2+

Cu2+ + 2e-= Cu

+0,337

Hg / Hg+

Hg+ + 1e-= Hg

+0,788

Ag / Ag+

Ag+ + e-= Ag

+0,799

Pd / Pd2+

Pd2+ 2e-= Pd

+0,987

Pt / Pt2+

Pt2+ + 2e-= Pt

+1,188

Au / Au+

Au+ + e-= Au

+1,692


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