Tablice
f ■ •.......... •....... Półogniwo |
Równanie połówkowe |
A ^ E()(V) |
h2o/h2 |
2 H20 + 2e" H2 + 2 OH" |
-0,83 |
SO|7SO|- |
SOf + H20 + 2e" zr SOf" + 2 OIF |
-0,94 |
S/S2- |
S + 2 e" S2- |
-0,48 |
Cr3+/Cr2+ |
Cr3+ + e" ^ Cr2+ |
-0,42 |
H20/H2 (pH=7) |
2 H20 + 2 e~ H2 + 2 OH" |
-0,42 |
Cr0427Cr(0H)3 |
Cr042" + 4 H20 + 3e" 1= Cr(OH)3 + 5 OH" |
-0,12 |
h+/h2 |
2 H+ + 2 e“ ^ H2 |
0,00 |
hso4/so2 |
HS04 + 3 H+ + 2 e- ^ S02 + 2 H20 |
+0,10 |
Sn4+/Sn2+ |
Sn4+ + 2e" ^ Sn2+ |
+0,15 |
o2/oh- |
02 + 2 H20 +4e" ^ 4 OH" |
+0,40 |
i2/r |
I2 + 2 c" ^ 21" |
+0,54 |
Mn047Mn02" |
Mn04 + e" ^ MnO2" |
+0,56 |
As047As02 |
As04~ + 4 H+ + 2 e" AsO; + 2 H20 |
+ 0,57 |
Mn07Mn02 |
Mn04" + 2 H20 + 3 e' Mn02 + 4 OH" |
+0,60 |
o2/h2o2 |
02 + 2 H+ + 2 e" H202 |
+0,68 |
N037N02 |
N03 + 2 H+ + e" ^ NO, + H20 |
+0,77 |
Fe3+/Fc2+ |
Fe3+ + e" Fe2+ |
+ 0,77 |
02,/H20 (pH=7) |
02 + 4 H+ + 4 e- 2 H20 |
+0,82 |
cio/cr |
CIO + H20 + 2 e" tu Cl" + 2 OH |
+0,89 |
N07N0 |
NO, + 4H++3e-^ NO + 2 H20 |
+0,95 |
notno |
NO, + 2 H+ + e“ 1= NO + H20 |
+0,99 |
Br2/Br |
Br2 + 2 c" 2 Br" |
+1,08 |
IO3/I- |
IOj + 6 H+ + 6 e" I" + 3 H20 |
+ 1,08 |
I03/I2 |
2 I03 + 12 H+ + 10 e" I2 + 6 H20 |
+ 1,21 |
o2/h2o |
02 + 4H+ + 4e" n 2 H20 |
+ 1,23 |
Mn02/Mn2+ |
Mn02 + 4 H+ + 2 e“ Mn2+ + 2 H20 |
+ 1,23 |
no3/n2 |
2 NO3 + 12 H+ + 10 e" ^ N2 + 6 H20 |
+ 1,24 |
no3/nh4+ |
NO3 + 10 H+ + 8 e" NH4+ + 3 H20 |
+ 1,25 |
Cr2027Cr3+ |
Cr202 + 14 H20 + 6e" ^ 2 Cr3+ + 7 H20 |
+1,36 |
cycF V, 7 ................- _______1 |
Cl2 + 2 e" 2 CF |
+ 1,36 ’ j |
196