476
Akceptory elektronów |
Donory elektronów |
E°, V |
(utleniacze) |
(reduktory) |
utl. + n e" |
4— |
red. | |
F2 + 2 e" |
4— |
2 F" |
+ 2,87 |
Co3+ + e" |
* |
Co2+ |
+ 1,84 |
Pb4+ + 2 e" |
—► |
Pb2+ |
+ 1,69 |
Mn04" + 8 H+ + 5 e" |
Mn2+ + 4 H20 |
+ 1,52 | |
Au3+ + 3e" |
—► |
Au |
+ 1,50 |
C103" + 6 H+ + 6 e" |
—► |
Cl" + 3 H20 |
+ 1,45 |
Br03" + 6 H+ + 6 e" |
—► |
Br" + 3 H20 |
+ 1,44 |
Cr2072" + 14H+ + 6e" |
—► |
2 Cr3+ + 7 H20 |
+ 1,36 |
Cl2 + 2e' |
—► |
2 cr |
+ 1,36 |
2 I03" + 12 H+ + 10 e" |
—► |
l2 + 6 H20 |
+ 1,20 |
I03" + 6 H+ + 6 e" |
I" + 3 H20 |
+ 1,09 | |
Br2 + 2 e" |
Br" |
+ 1,07 | |
N02' + 2 H+ + e" |
5 |
NO + H20 |
+ 1,00 |
N03" + 4 H+ + 3 e" |
4— |
NO + 2 H20 |
+ 0,96 |
CIO" + H20 + 2 e" |
4— —► |
Cl" + 2 OH" |
+ 0,89 |
N03" + 2 H+ + e" |
U |
N02 + H20 |
+ 0,78 |
Fe3+ + e~ |
4— |
Fe2+ |
+ 0,77 |
02 + 2 H+ + 2 e~ |
H202 |
+ 0,70 | |
As043- + 4 H+ + 2 e" |
As02" + 2 H20 |
+ 0,56 | |
l2 + 2 e" |
2I" |
+ 0,54 | |
2 H20 + 02 + 4 e' |
4 OH" |
+ 0,41 | |
S042" + 2 H+ + 2 e" |
—► |
S032" + H20 |
f 0,20 |
Sn4+ + 2 e" |
U |
Sn2+ |
+ 0,11 |
Ti4+ + e" |
4—- '—► |
Ti3+ |
+ 0,10 |
2 H+ + 2 e" |
4—-—ł |
h2 |
0,00 |
y3+ + 0 |
4-* |
V2* |
-0,10 |
Cr31 * t |
H |
Cr2’ |
0,41 |
5 • V r |
s |
i2 |
0,51 |
Elektroda |
Reakcja elektrodowa |
E°, V | |
Li/Lf |
Li+ + e- |
25 Li |
-3,02 |
K/K+ |
K+ + e“ |
£* K |
-2,93 |
Ba/Ba2+ |
Ba2+ + 2 e~ |
25 Ba |
-2,91 |
Sr/Sr2+ |
Sr2+ + 2 e" |
25 Sr |
-2,89 |
Ca/Ca2+ |
Ca2+ + 2 e • |
25 Ca |
-2,86 |
Na/Na+ |
Na+ + e^ |
25 Na |
-2,71 |
Mg/Mg2+ |
Mg2+ + 2 e~ |
Mg |
-2,36 |
H('/Be2+ |
Be2+ + 2e- |
25 Be |
-1,97 |
Al/Al3+ |
Al3+ + 3 e" |
25 Al |
-1,69 |
Mn/Mn2+ |
Mn2+ + 2e“ |
^ Mn |
-1,18 |
/n/Zn2+ |
Zn2+ + 2 e • |
U Zn |
-0,76 |
< i /Cr3+ |
Cr3+ + 3e- |
25 Cr |
-0,74 |
l --/Fe2+ |
Fe2+ + 2e” |
25 Fe |
-0,44 |
( «I/Cd2+ |
Cd2+ + 2 e~ |
25 Cd |
-0,40 |
Cq/Co2+ |
Co2+ + 2 e“ |
25 CO |
-0,28 |
Ni/Ni2" |
Ni2+ + 2 e- |
25 Ni |
-0,26 |
Sn/Sn2+ |
Sn2+ + 2 e~ |
25 Sn |
-0,14 |
Pb/Pb2+ |
Pb2+ + 2 e~ |
25 Pb |
-0,13 |
rp/Pe1' |
Fe3+ + 3 e" |
25 Fe |
-0,04 |
Hi/IH* |
2H+ + 2e- |
25 H2 |
0,00 |
lh/lb3+ |
Sb3+ + 3 e |
25 Sb |
+ 0,20 |
p/ii1. |
Bi3ł + 3 e |
25 Bi |
+ 0,32 |
f ti Cu2' |
Cu2* + 2 e |
25 CU |
+ 0,34 |
Ag/Ag' |
Ag' + e |
25 Ag |
+ 0,80 |
Mg/Hl3' |
Hg1* t 2 p |
^Hg |
+ 0,8*5 |
h nm2. |
Pt2* * i p |
m Pt |
+ 1,19 |
Am Au' |
Au' + t |
tt Au |
*1,70 |