كمون الارجاع القياسي
- On 22/07/2013
- Comments (0)
(Eo(V |
زوج الأكسدة والإرجاع (ox/red) |
تفاعل المسرى (إرجاع) ox+ (n)e- ↔ red |
2,87+ |
(أضعف المرجعات)-F2/F(أقوى المؤكسدات) |
-F2(g)+2e-↔2F |
2,07+ |
O3/O2 |
O3(g)+2H++2e-↔O2(g)+H2O |
2,01+ |
-S2O82-/SO42 |
S2O82-+2e- ↔ 2SO42 |
1,82+ |
+Co3+/Co2 |
+Co3++e-↔Co2 |
1,77+ |
H2O2/H2O |
H2O2+2H++2e-↔2H2O |
1,71+ |
-ClO-/Cl |
ClO-+2H++2e-↔Cl-+H2O |
1,69+ |
MnO4-/MnO2 |
MnO4-+4H++3e-↔ MnO2(s)+2H2O |
1,68+ |
(Au+/Au(s |
(Au++e-↔Au(s |
1,61+ |
+Ce4+/Ce3 |
Ce4++e-↔Ce3 |
1,6+ |
NO/N2O |
2NO+2H++2e-↔N2O+H2O |
1,59+ |
HOCl/Cl2 |
2 HOCl +2H++2e-↔Cl2(g)+2H2O |
1,52+ |
BrO3-/Br2 |
2BrO3-+12H++10e-↔Br2(l)+6H2O |
1,51+ |
+MnO4-/Mn2 |
MnO4-+8H++5e-↔Mn2++4H2O |
1,50+ |
(Au3+/Au(s |
(Au3++3e-↔Au(s |
1,495+ |
-HOCl/Cl |
HOCl+H++2e-↔Cl-+H2O |
1,45+ |
+PbO2(s)/ Pb2 |
PbO2(s) +4H++2e-↔Pb2++2H2O |
1,45+ |
-ClO3-/Cl |
ClO3-+6H++6e-↔Cl-+3H2O |
1,39+ |
-ClO4-/Cl |
ClO4-+8H++8e-↔Cl-+4H2O |
1,36+ |
-Cl2/Cl |
-Cl2(g)+2e-↔2Cl |
1,33+ |
+Cr2O72-/Cr3 |
Cr2O72-+14H++6e-↔2Cr3++7H2O |
1,33+ |
-HBrO/Br |
HBrO+H++2e-↔Br -+H2O |
1,24+ |
(O3/O2(Basic solution |
-O3(g)+ H2O +2e-↔O2(g)+2OH |
1,23+ |
+MnO2/Mn2 |
MnO2(s)+4H++2e-↔Mn2++2H2O |
1,23+ |
O2/H2O |
O2(g)+4H++4e-↔2H2O |
1,20+ |
-ClO4-/ClO3 |
ClO4-+2H++2e-↔ClO3-+H2O |
1,20+ |
(Pt2+/Pt(s |
(Pt2++2e-↔Pt(s |
1,19+ |
IO3-/I2 |
2IO3-+12H++10e-↔I2(s)+6H2O |
1,09+ |
-IO3-/I |
IO3-+6H++6e-↔I-+3H2O |
1,07+ |
-ClO2/ClO2 |
-ClO2+e-↔ClO2 |
1,07+ |
N2O4/HNO2 |
N2O4(g)+2H++2e-↔2HNO2 |
1,06+ |
-Br2/Br |
-Br2(l)+2e-↔2Br |
0,99+ |
HNO2/NO |
HNO2+H++e-↔NO(g)+H2O |
0,96+ |
NO3-/NO |
NO3-+4H++3e-↔NO(g)+2H2O |
0,94+ |
NO3-/HNO2 |
NO3-+3H++2e-↔HNO2+H2O |
0,93+ |
(BrO4-/BrO3-(Basic solution |
-BrO4-+H2O+2e-↔BrO3-+2OH |
0,92+ |
Hg2+/Hg22+ |
+2Hg2++2e-↔Hg22 |
0,89+ |
(ClO-/Cl-(Basic solution |
-ClO-+ H2O +2e-↔Cl-+2OH |
0,87+ |
+NO3-/NH4 |
NO3-+10H++8e-↔ NH4++3H2O |
0,85+ |
Hg2+/Hg |
(Hg2++2e-↔Hg(l |
0,81+ |
(IO4-/IO3-(Basic solution |
-IO4-+H2O+2e-↔IO3-+2OH |
0,81+ |
NO3-/ NO2 |
NO3-+2H++e-↔ NO2(g)+H2O |
0,80+ |
NO3-/N2O4 |
2NO3-+4H++2e-↔N2O4(g)+2H2O |
0,799+ |
Ag+/Ag |
(Ag++e-↔Ag(s |
0,789+ |
Hg22+/Hg |
(Hg22++2e-↔2Hg(l |
0,77+ |
+Fe3+/Fe2 |
+Fe3++e-↔Fe2 |
0,68+ |
O2/H2O2 |
O2(g)+2H++2e-↔H2O2 |
0,62+ |
HgCl2/ Hg2Cl2 |
2HgCl2+2e-↔Hg2Cl2+2Cl |
0,62+ |
(ClO3-/Cl-(Basic solution |
-ClO3-+3H2O +6e-↔Cl-+6OH |
0,60+ |
(BrO3-/Br -(Basic solution |
-BrO3-+3H2O+6e-↔Br -+6OH |
0,60+ |
-MnO4-/ MnO42 |
-MnO4-+e-↔ MnO42 |
0,57+ |
(MnO4-/ MnO2(Basic solution |
-MnO4-+2H2O+3e-↔ MnO2(s)+4OH |
0,56+ |
H3AsO4/HasO2 |
H3AsO4+2H++2e-↔HAsO2+2H2O |
0,54+ |
-I2/I |
-I2(s)+2e-↔2I |
0,521+ |
Cu+/Cu |
(Cu++e-↔Cu(s |
0,49+ |
(ClO3-/OCl-(Basic solution |
-ClO3-+2H2O+4e-↔OCl-+4OH |
0,48+ |
(ClO3-/ClO2(Basic solution |
-ClO3-+H2O+e-↔ClO2+2OH |
0,45+ |
(H2SO3/ S(s |
H2SO3+4H++4e-↔S(s)+ 3H2O |
0,42+ |
(ClO-/Cl2(Basic solution |
-2ClO-+2H2O+2e-↔Cl2+4OH |
0,40+ |
(ClO4-/ClO3-(Basic solution |
-ClO4-+H2O+2e-↔ClO3-+2OH |
0,40+ |
(O2/OH-(Basic solution |
-O2(g)+ 2H2O +4e-↔4OH |
0,36+ |
-Fe(CN)6]3-/ [Fe(CN)6]4] |
-Fe(CN)6]3-+e-↔ [Fe(CN)6]4] |
0,34+ |
Cu2+/Cu |
(Cu2++2e-↔Cu(s |
0,2676+ |
(Hg2Cl2/Hg(l |
-Hg2Cl2(s)+2e-↔2Hg(l)+2Cl |
0,26+ |
(lO3-/l-(Basic solution |
-lO3-+3 H2O +6e-↔l-+6OH |
0,2225+ |
(AgCl(s)/Ag(s |
-AgCl(s)+e-↔Ag(s)+Cl |
0,21+ |
(lO3-/l2(Basic solution |
-2lO3-+6 H2O +10e-↔l2(s)+12OH |
0,17+ |
SO42-/ H2SO3 |
SO42-+4H++2e-↔ H2SO3+ H2O |
0,16+ |
+Cu2+/Cu |
+Cu2++e-↔Cu |
0,15+ |
+Sn4+/Sn2 |
+Sn4++2e-↔ Sn2 |
0,14+ |
(S(s)/ H2S(g |
(S(s)+2H++2e-↔H2S(g |
0,1+ |
-Co(NH3)6]3+/ [Co(NH3)6]2] |
-Co(NH3)6]3++e-↔ [Co(NH3)6]2 |
0,08+ |
-S4O62-/S2O32 |
-S4O62-+2e-↔2S2O32 |
0,04+ |
CH3CO2H/C2H5OH |
CH3CO2H+4H++2e-↔C2H5OH+H2O |
0,00 |
H+/H2 |
(2H++2e-↔H2(g |
0,036- |
Fe3+/Fe |
(Fe3++3e-↔Fe(s |
0,126- |
Pb2+/Pb |
(Pb2++2e-↔Pb(s |
0,13- |
(CrO42-/Cr3+(Basic solution |
-CrO42-+4H2O +3e-↔Cr(OH)3(s)+5OH |
0,136- |
Sn2+/Sn |
(Sn2++2e-↔Sn(s |
0,25- |
Ni2+/Ni |
(Ni2++2e-↔Ni(s |
0,28- |
Co2+/Co |
(Co2++2e-↔Co(s |
0,37- |
+Ti3+/Ti2 |
+Ti3++e-↔Ti2 |
0,40- |
+Cr3+/Cr2 |
+Cr3++e-↔Cr2 |
0,403- |
Cd2+/Cd |
(Cd2++2e-↔Cd(s |
0,439- |
Fe2+/Fe |
(Fe2++2e-↔Fe(s |
0,49- |
CO2/H2C2O4 |
2CO2+2H++2e-↔H2C2O4 |
0,51- |
(S(s)/S2-(Basic solution |
-S(s)+2e-↔S2 |
0,66- |
(SO32-/S(s |
-SO32-+3H2O+4e-↔S(s)+6OH |
0,74- |
Cr3+/Cr |
(Cr3++3e- ↔Cr(s |
0,76- |
Zn2+/Zn |
(Zn2++2e-↔Zn(s |
0,83- |
(H2O/ H2(g) (Basic solution |
-2H2O+2e-↔H2(g)+2OH |
0,86- |
Cr2+/Cr |
(Cr2++2e- ↔Cr(s |
0,93- |
(SO42-/ H2SO3(Basic solution |
-SO42-+ H2O +2e-↔ SO32-+ 2OH |
1,18- |
Mn2+/Mn |
(Mn2++2e-↔Mn(s |
1,63- |
Ti2+/Ti |
(Ti2++2e-↔Ti(s |
1,706- |
Al3+/Al |
(Al3++3e-↔ Al(s |
1,80- |
U3+/U |
(U3++3e-↔U(s |
2,25- |
-H2/H |
-H2(g)+2e-↔2H |
2,35- |
(AlO2-/Al(Basic solution |
-AlO2-+2H2O +3e-↔Al(s)+4OH |
2,37- |
Mg2+/Mg |
(Mg2++2e-↔Mg(s |
2,69- |
(Mg(OH)2/Mg(Basic solution |
-Mg(OH)2+2e-↔Mg+2OH |
2,71- |
Na+/Na |
(Na++e-↔Na(s |
2,87- |
Ca2+/Ca |
(Ca2++2e-↔Ca(s |
2,89- |
Sr2+/Sr |
(Sr2++2e-↔Sr(s |
2,90- |
Ba2+/Ba |
(Ba2++2e-↔Ba(s |
2,92- |
K+/K |
(K++e-↔K(s |
2,99- |
Rb+/Rb |
(Rb++e-↔Rb(s |
3,02- |
Cs+/Cs |
(Cs++e-↔Cs(s |
3,045- |
Li+/Li |
(Li++e-↔Li(s |
3,2- |
(أقوى المرجعات)N3-/N2,Pt(أضعف المؤكسدات) |
-3/2N2+e-↔N3 |
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