电对 | 电极反应 | /V |
Li+/Li | Li++ e-⇌ Li | -3.045 |
Rb+/Rb | Rb++e-⇌Rb | -2.93 |
K+/K | K++e-⇌K | -2.925 |
Cs+/Cs | Cs++e-⇌Cs | -2.92 |
Ba+/Ba | Ba2++2e-⇌Ba | -2,91 |
Sr2+/Sr Ca2+/Ca Na+/Na La3+/La Y3+/Y Mg2+/Mg | Sr2++2e-⇌Sr Ca2++2e-⇌Ca Na++e-⇌Na La3++3e-⇌La Y3++3e-⇌Y Mg2++2e-⇌Mg | -2.89 -2.87 -2.714 -2.52 -2.37 -2.37 |
Ce3+/Ce | Ce3++3e-⇌Ce | -2.33 |
H2/H- Sc3+/Sc Th4+/Th | H2+e-⇌H- 遮蔽肩垫Sc3++3e-⇌Sc Th4++4e-⇌ Th | -2.25 -2.1 -1,9 |
Be+/Be | Be2++2e-⇌Be | -1.85 |
U3+/U | U3++3e-⇌ U | -1.80 |
Al3+/Al | Al3++3e-⇌Al | -1.66 |
Ti2+/Ti | Ti2++2e-⇌ Ti | -1.63 |
ZrO2/Zr | ZrO2+4H++4 e-⇌ Zr+H2O | -1.43 |
V2+/V | V2++2e-⇌V | -1.2 |
Mn2+/Mn | Mn2++2e-⇌Mn | -1.17 |
TiO2/Ti | TiO2+4H++4 e-⇌ Ti+H2O | -0.86 |
SiO2/ Si | SiO2+4H++4 e-⇌ Si+H2O | -0.86 |
Cr2+/Cr Zn2+/Zn Cr3+/Cr | Cr2++2e-⇌Cr Zn2++2e-⇌Zn Cr3++3e-⇌Cr | -0.86 -0.763 -0.74 |
Ag2S/Ag | Ag2S+2e-⇌Ag+S2- | -0.71 |
CO2/H2C2O4 Fe2+/Fe | CO2+2H++2e-⇌ H2C2O4 Fe2++2e-⇌Fe | -0.49 -0.440 |
Cr3+/ Cr2+ | Cr3++e-⇌ Cr2+ | -0.41 |
Cd2+/Cd | Cd2++2e-⇌ Cd2 | -0.403 |
Ti3+/Ti2+ | Ti3++e-⇌ Ti2+ | -0.37 |
PbSO4/Pb | PbSO4+2e-⇌Pb+SO42- | -0.356 |
Co2+/Co | Co2++2e-⇌Co | -0.29 |
PbCl2 /Pb | PbI2+2e-⇌Pb+2I- | -0.266 |
V3+/V2+ | V3++2e-⇌V2+ | -0.255 |
Ni2+/Ni | Ni2++2e-⇌Ni | -0.25 |
AgI /Ag | AgI+e-⇌Ag+I | -0.152 |
Sn2+/Sn | Sn2++2e-⇌Sn | -0.136 |
Pb2+/Pb | Pb2++2e-⇌Pb | -0.126 |
AgCN/Ag | AgCN+e-⇌Ag+CN- | -0.017 |
H+/H2 | 2H++2e-⇌ H2 | 0.0000 |
AgBr/Ag | AgBr+e-⇌Ag+Br- | 0.071 |
TiO2+/Ti3+ | TiO2++2H++e-⇌ Ti3++H2O | 0.10 |
S/H2S | S+2H++2e-⇌ H2S(aq) | 0.14 |
Sb2O3/Sb | Sb2O3+6H++6e-⇌ 2Sb+3H2O | 0.15 |
Sn4+/Sn2+ | Sn4++2e-⇌ Sn2+ | 0.154 |
Cu2+/Cu+ | Cu2++e-⇌ Cu+ | 0.17 |
AgCl /Ag | AgCl+e-⇌ Ag+Cl- | 0.2223 |
HAsO2/As | HAsO2+3H++3e-⇌ As+2H2O | 0.248 |
Hg2Cl2/Hg | Hg2Cl2+2e-⇌ 2Hg+2Cl- | 0.268 |
BiO+/Bi | BiO++2H++3e-⇌ Bi+H2O | 0.32 |
UO22+ /U4+ | UO22++4H++2e-⇌ U4++2H2O | 0.33 |
VO 2+/V3+ | VO 2++2H++e-⇌ V3++H2O | 0.34 |
Cu2+/Cu | Cu2++2e-⇌ Cu | 0.34 |
S2O32-/S | S2O32-+6H++4e-⇌ 2S+3H2O | 0.5 |
Cu+/Cu | Cu++e-⇌ Cu | 0.52 |
I3-/I- | I3-+2e-⇌3I- | 0.545 |
I2/I- | I2+2e-⇌2I- | 0.535 |
MnO4-/ MnO42- | MnO4-+e-⇌MnO42- | 0.57 |
H3AsO4/ HAsO2 | H3AsO4+2H++2e-⇌HAsO2+2H2O | 0.581 |
HgCl2/ Hg2Cl2 | 2HgCl2+2e-⇌ Hg2Cl2(S)+2Cl- | 0.63 |
Ag2SO4/Ag | Ag2SO4+2e-⇌2Ag+SO42- | 0.653 |
O2/H2O2 | O2+2H++2e-⇌ H2O2 | 0.69 |
[PtCl4]2-/Pt | [PtCl4]2-+2e-⇌Pt+4Cl- | 0.73 |
Fe3+/Fe2+ | Fe3++e-⇌Fe2+ | 0.771 |
Hg22+/Hg | Hg22++2e⇌2Hg | 0.792 |
Ag+/Ag | Ag++e-⇌Ag | 0.7999 |
NO3-/ NO2 | NO3-+H++e-⇌NO2+H2O | 0.80 |
Hg2+/Hg | Hg2++2e-⇌Hg | 0.854 |
Cu2+/CuI | Cu2++I-+e-⇌CuI | 0.86 |
Hg2+/ Hg22+ | 2Hg2++2e-⇌Hg22+ | 0.907 |
Pd2+/Pd | Pd2++2e-⇌Pd | 0.92 |
NO3-/ HNO2 | NO3-+3H++2e-⇌HNO2+H2O | 0.94 |
NO3-/ NO | NO3-+4H++3e-⇌NO+2H2O | 0.96 |
弹簧绳HNO2/ NO | HNO2+H++e-⇌NO+H2O | 0.98 |
HIO/ I- | HIO+H++2e-⇌I-+H2O | 0.99 |
VO 2+/ VO 2+ | VO 2++2H++e-⇌ VO 2++H2O | 0.999 |
[AuCl4]-/Au | 1.00 | |
NO2/ NO | NO2+2H++2e-⇌NO+H2O | 1.03 |
Br2/Br- | Br2(l)+2e-⇌2Br- | 1.065 |
NO2/HNO2 | NO2+H++e-=HNO2 | 1.07 |
Br2/Br- | Br2(aq)+2e-⇌2Br- | 1.08 |
Cu2+/[Cu(CN)2]- | Cu2++2CN-+e-⇌[Cu(CN)2]- | 1.12 |
IO3-/HIO | IO3-+5H++4e-⇌HIO+2H2O | 1.14 |
ClO3-/ ClO2 | ClO3-+2H++e-⇌ClO2+H2O | 1.15 |
Ag2O/Ag ClO4-/ ClO3- IO3-/I2 | Ag2O+2H++2e-⇌2Ag+H2O ClO4-+2H++2e-⇌ClO3-+H2O 2IO3-+12H++10e-⇌ I2+6H2O | 1.17 1.19 1.19 |
ClO3-/ HClO2 | ClO3-+3H++2e-⇌HClO2+H2O | 1.21 |
O2/ H2O | O2+4H++4e-⇌2H2O | 1.229 |
MnO2/ Mn2+ | MnO2+4H++4e-⇌Mn2++2H2O | 1.23 |
ClO2/ HClO2 | ClO2(g)+H++e-⇌HClO2 | 1.27 |
Cr2O72-/ Cr3+ | Cr2O72-+14H++6e-⇌2Cr3++7H2O | 1.33 |
ClO4-/ Cl2 | 2ClO4-+16H++14e-⇌Cl2+8H2O | 1.34 |
Cl2/ Cl- | Cl2+2e-⇌2Cl- | 1.36 |
Au3+/Au+ | Au3++2e-⇌Au+ | 1.41 |
BrO3-/ Br- | BrO3-+6H++6e-⇌Br-+3H2O | 1.44 |
HIO/I2 ClO3-/ Cl- PbO2/ Pb2+ | 2HIO+2H++2e-⇌I2+2H2O ClO3-+6H++6e-⇌Cl-+3H2O PbO2+4H++2e-⇌Pb2++2H2O | 1.45 1.45 1.455 |
ClO3-/ Cl2 | 2ClO3-+12H++10e-⇌Cl2+6H2O | 1.47 |
Mn3+/Mn2+ | Mn3++e-⇌Mn2+ | 1.488 |
HClO/ Cl- | HClO+H++2e-⇌Cl-+H2O | 1.49 |
Au3+/Au | Au3++3e-⇌Au | 1.50 |
BrO3-/ Br2 | 2BrO3-+12H++10e-⇌Br2+6H2O | 1.5 |
MnO4-/Mn2+ | MnO4-+8H++5e-⇌ Mn2++4H2O | 1.51 |
HBrO/ Br2 | 2HBrO+2H++2e-⇌Br2+2H2O | 1.6 |
H5IO6/ IO3- | H5IO6+H++2e-⇌IO3-+3H2O | 1.6 |
HClO/ Cl2 | 2HClO+2H++2e-⇌Cl2+2H2O | 1.63 |
HClO2/ HClO | HClO2+2H++2e-⇌HClO+H2O | 1.64 |
MnO4-/ MnO2 | MnO4-+4H++3e-⇌MnO2+2H2O | 1.68 |
NiO2/ Ni2+ | NiO2+4H++2e-⇌Ni2++2H2O | 1.68 |
PbO2/ PbSO4 | PbO2+SO42-+4H++2e-⇌PbSO4+2H2O | 1.69 |
H2O2/ H2O | H2O2+2H++2e-⇌2H2O | 1.77 |
Co3+/Co2+ | Co3++e-⇌Co2小功率电磁炉+ | 1.80 |
XeO3/Xe | XeO3+6H++6e-⇌Xe+3H2O | 1.8 |
S2O82-/ SO42- | S2O82-+2e-⇌2SO42- | 2.0 |
O3/O2 XeF2/Xe F2/F- H4XeO6/XeO3 F2/HF | O3+2H++2e-⇌O2+H2O XeF2+2e-⇌Xe+2F- F2+2e-⇌2F- H4XeO6+2H++2e-⇌XeO3+3H2O F2(g)+2H++2e- ⇌2HF | 2.07 2.2 2.87 3.0 3.06 |
电对 | 电极反应 | /V |
Mg(OH)2/Mg | Mg(OH)2+2e-⇌ Mg+2OH- | -2.69 |
H2AIO3-/Al H2BO3-/B Mn(OH)2/Mn Zn(CN)4] 2-/Zn ZnO22-/Zn S032-/S2O42- [Zn(NH3)4]2+ /Zn [Sn(OH)6]2-/HSnO2- S042-/S032- HSnO2-/Sn H2O/H2 Ni(OH)2/Ni AsO43-/AsO2- S032-/S AsO2-/As SO32-/S2O32- S/S2- [Ag(CN)2]- /Ag CrO42-/CrO2- O2/HO2- NO3-/NO2- S4O62-/S2O32- HgO/Hg Mn(OH)3/ Mn(OH)2 [Co(NH3)6]3+/[Co(NH3)6]2+ Co(OH)3/Co(OH)2 Ag2O/ Ag O2/OH- MnO4-/MnO2 BrO3-/Br- BrO-/Br- H2O2/OH- ClO-/Cl- HXeO63-/HXeO4 HXeO4/Xe O3/OH- | H2AIO3-+H2O+3e-⇌ Al+4OH- H2BO3-+H2O+3e-⇌ B+40H- Mn(OH)2+2e-⇌ Mn+20H- [Zn(CN)4]2-+2e-⇌ Zn+4CN- ZnO22-+2H2O+2e-⇌ Zn+4OH- 2SO32-+2H2O+2e-⇌S2O42-+4OH- [Zn(NH3)4]2++2e-⇌ Zn+4NH3 [Sn(OH)6]2-+2e-⇌HSnO2-+30H-+H2O SO42-+H2O+2e-⇌ SO32-+20H- HSnO2-+H2O+2e-⇌ Sn+3OH- 2H2O+2e-⇌ H2+20H- Ni(OH)2 +2e -⇌ Ni+2OH- AsO43-+2H2O+2e-⇌ AsO2-+4OH- SO32-+3H2O+4e -⇌ S+6OH- AsO2-+2H2O+3e-⇌ As+4OH- 2SO32-+3H2O+4e-⇌ S2O32-+6OH- S+2e-⇌ S2- Ag(CN)2]-+e-⇌ Ag+2CN- CrO42-+2H2O+3e-⇌ CrO2-+4OH- O2+H2O+2e-⇌ HO2-+OH- NO3-+H2O+2e-⇌ NO2-+20H- S4O62-+2e-⇌ 2S2O32- HgO+H2O+2e-⇌ Hg+2OH- Mn(OH)3+e-⇌ Mn(OH)2+OH- [Co(NH3)63+]+e-⇌ [Co(NH3)6]2+ Co(OH)3+e-⇌ Co(OH)2+OH- Ag2O+H2O+2e-⇌ 2Ag+2OH- O2+2H2O+4e-⇌ 4OH- MnO4-+2H2O+3e-⇌ MnO2+4OH- BrO3-+3H2O+6e-⇌ Br-+6OH- BrO-+H2O+2e-⇌ Br-+2OH- H2O2+2e-⇌ 2OH- CIO-+H2O+2e-⇌ CI-+2OH- HXeO63-+2H2O+e-⇌ HXeO4+4OH- HXeO4+3H2O+7e-⇌ Xe+7OH- O3+H2O+2e-⇌ O2+2OH- | -2.35 -1.79 -1.55 -1.26 -1.216 -1.12 -1.04 -0.93 -0.93 -0.91 -0.828 -0.72 -0.67 -0.66 -0.66 -0.58 -0.48 -0.31 -0.12 -0.076 0.01 0.09 0.098 0.1 0.1 0.17 0.34 0.41 0.588 0.61 0.76 铝合金切削液配方0.88 0.89 0.9 0.9 1.24 |
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