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1、标准电极电势表标准电极电势表 环境：摄氏 25 度，1 标准大气压，离子浓度 1 摩尔/升，采用氢电极 最全最实用电极电势表由 xsm18 倾情制作，转载请注明来源： 酸性溶液数据：酸性溶液数据： 电对符号电极反应电极电势E(V)备注 N2/N(-1/3)3N2+2H+2e-=2HN3(g)-3.4(V)气体(g) N2/N(-1/3)3N2+2H+2e-=2HN3(aq)-3.1水溶液(aq) Li+/LiLi eLi -3.045注释 1 Cs+/CsCs eCs -3.026注 1 Rb+/RbRb eRb -2.98注 1 K+/KK eK -2.928注 1 Ba2+/BaBa2 2
2、eBa -2.912注 1 Sr2+/SrSr2 2eSr -2.894注 1 Ca2+/CaCa2 2eCa -2.868注 1 Na+/NaNa eNa -2.714注 1 Mg2+/MgMg 22eMg -2.372 Ce3+/CeCe3 3eCe -2.336注 2 H2/H(-1)H2(g)2e 2H -2.23 H+/H2(g)H eH(g) -2.107 Sc3+/ScSc3 3eSc -2.077注 3 Al3+/AlAlF63 3eAl6F -2.069 Be2+/BeBe2 2eBe -1.847 Al3+/AlAl3 3eAl -1.662 Si4+/SiSiF62 4e
3、Si6F -1.24 Mn2+/MnMn2 2eMn -1.18 Cr2+/CrCr 22eCr -0.913 B3+(硼酸)/BH3BO33H 3eB3H2O -0.87 SiO2(石英)4+/SiSiO24H 4eSi+2H2O -0.857 SiO(2+)/SiSiO2H 2eSi+H2O -0.8 Te/H2Te(2+)Te2H 2eH2Te -0.793 Zn2+/ZnZn2 2eZn -0.7618 Cr3+/CrCr3 3eCr -0.744 H2SeO3(4+)/SeH2SeO34H 4eSe+3H2O -0.74 As/AsH3(-3)As3H 3eAsH3 -0.608 H
4、3PO2(+1)次磷酸/PH3PO2+ H eP+2H2O -0.508 H3PO3(+3) /P+(aq)H3PO32H 2eH3PO2H2O -0.499水溶液(aq) C4+/C3+(草酸)2CO22H 2eH2C2O4 -0.49 Fe2+/FeFe2 2eFe -0.447 Cr3+/Cr2+Cr3 eCr2 -0.408 Se/Se(-2)Se2H 2eH2Se(aq) -0.399水溶液(aq) PbI2(+2)/PbPbI22e Pb2I -0.365 1 / 10 PbSO4(+2)/PbPbSO42e PbSO42 -0.3588 PbBr2(+2)/PbPbBr22e P
5、b2Br -0.284 Co2+/CoCo2 2eCo -0.28 H3PO4/H3PO3H3PO42H 2eH 3PO3H2O -0.276 PbCl2(+2)/PbPbI22e Pb2I -0.2675 Ni2+/NiNi2 2eNi -0.257 CO2/HCOOH(甲酸)CO2(g) 2H 2eHCOOH(aq) -0.199 CuI(+1)/CuCuIe CuI -0.1852 AgI(+1)/AgAgIe AgI -0.15224 Sn2+/SnSn2 2eSn -0.1375 Pb2+/PbPb2 2ePb -0.1262 C4+/C2+CO2(g)2H 2eCOH2O -0.1
6、2 P/PH3P(白磷)3H 3ePH3(g) -0.063气体(g) Hg2I2(+1)/HgHg2I22e 2Hg2I -0.0405 Fe3+/FeFe3 3eFe -0.037 Ag2S(+1)/AgAg2S2H 2e2AgH2S -0.0366 H+/H22H 2eH 2 0.00 CuBr(+1)/CuCuBre CuBr 0.033 AgBr(+1)/AgAgBre AgBr 0.07133 Si/SiH4Si4H 4eSiH4 0.102 C(石墨)/CH4C4H 4eCH4 0.1316 CuCl(+1)/CuCuCle CuCl 0.137 Hg2Br2(+1)/HgHg2
7、Br22e 2Hg2Br 0.13923 S/H2S(aq)S2H 2eH2S(aq) 0.142水溶液 Sn4+/Sn2+Sn4 2eSn2 0.151 Cu2+/Cu+Cu2 eCu 0.153 S6+/S4+SO42 4H2eH2SO3H2O 0.172 AgCl(+1)/AgAgCle AgCl 0.2223 As3+/As(亚砷酸)HAsO2(aq)3H 3eAs2H2O 0.2476HAsO2.H2O Hg2Cl2/HgHg2Cl22e 2Hg2Cl 0.268 Bi3+/BiBi3 3eBi 0.308 Cu2+/CuCu2 2eCu 0.337 AgIO3/AgAgIO3e A
8、gIO3 0.354 S6+/SSO42 8H6eS+4H 2O 0.3572 Ag2CrO4/AgAg2CrO42e 2AgCrO42 0.447铬酸银 S4+/SH2SO34H 4eS3H2O 0.449 Ag2C2O4/AgAg2C2O42e 2AgC2O42 0.4647草酸银 Cu+/CuCu eCu 0.521 I2/I-I22e 2I 0.5355 AgBrO3/AgAgBrO3e AgBrO3 0.546 As5+/As3+H3AsO4(aq)2H 2eHAsO22H2O 0.56水溶液 AgNO2/AgAgNO2e AgNO2 0.564 Te4+/TeTeO24H 4eTe
9、2H2O 0.593 2 / 10 Hg2SO4/HgHg2SO42e 2HgSO42 0.614 Ag2SO4/AgAg2SO42e 2AgSO 42 0.654 Pt4+(氯铂酸)/Pt2+PtCl62 2ePtCl422Cl 0.68 O2/O-O22H 2eH 2O2 0.695 Pt2+/Pt(二氯化铂)PtCl42 2ePt4Cl 0.73 Se4+/SeH2SeO34H 4eSe3H2O 0.74 Fe3+/Fe2+Fe3 eFe2 0.771 AgF/AgAgFe AgF 0.779 Hg+/HgHg22 2e2Hg 0.788 Ag+/AgAg eAg 0.7991 N5+/
10、N4+(硝酸)2NO3 4H2eN2O4(g)2H2O 0.803气体(g) Hg2+/HgHg2 2eHg(lq) 0.853液态(水银) Si4+(石英)/SiSiO24H 4eSi2H2O 0.857 Hg2+/Hg+2Hg2 2eHg22 0.92 N5+/N3+(亚硝酸)NO3 3H2eHNO2H2O 0.934 Pd2+/PdPd2 2ePd 0.951 N5+/N2+NO3 4H3eNO2H 2O 0.957 Au3+/Au(三溴化金)AuBr2 eAu+2Br 0.959 N3+/2+HNO2H eNOH 2O 0.983 Au3+/Au(三氯化金)AuCl4 3eAu4Cl
11、1.002 Te6+/Te4+H6TeO62H 2eTeO24H2O 1.02 N4+/N2+N2O44H 4e2NO2H2O 1.03 Pt4+/PtPtO24H 4ePt2H2O 1.045 Br2(lq)/Br-Br2(lq)2e 2Br 1.0652液溴(lq) N4+/N3+N2O42H 2e2HNO2 1.07 Br2(aq)/Br-Br2(aq)2e 2Br 1.087水溶液(aq) Se6+/Se4+SeO42 4H2eH2SeO3H2O 1.151 Cl5+/Cl4+ClO3 2HeClO2H2O 1.152 O2/H2O(g)O24H 4e2H2O(g) 1.185水蒸汽(
12、g) Pt2+/PtPt2 2ePt 1.188 Cl7+/Cl5+ClO4 2H2eClO3H2O 1.189 I5+/I22IO3 12H10eI 2(s)6H2O 1.195碘单质(s) Cl5+/Cl3+ClO3 3H2eHClO2H2O 1.21 Mn4+/Mn2+MnO24H 2eMn22H 2O 1.224 O2/H2O(液态水)O24H 4e2H2O 1.229常温水 S+(S2Cl2)/SS2Cl22e 2S2Cl 1.23 Fe3O4/Fe2+Fe3O48H 2e3Fe24H2O 1.23 Tl3+/Tl+T13 2eTl 1.25注 4 Cl4+/Cl3+ClO2H eH
13、ClO2 1.277 N3+/N+2HNO2(aq)4H 4eN2O(g)3H2O 1.297 Cr6+/Cr3+Cr2O72 14H6e2Cr37H2O 1.33重铬酸根 Br+/Br-HBrOH 2eBrH2O 1.331 Cr6+/Cr3+HCrO4 7H3eCr34H2O 1.35铬酸根 3 / 10 Cl2/Cl-Cl2(g)2e 2Cl 1.358(g)氯气 Au2O3(+3)/AuAu2O36H 6e2Au3H 2O 1.36 Cl7+/Cl-ClO4 8H8eCl4H2O 1.388 Cl7+/Cl2ClO4 8H7e1/2Cl 24H2O 1.392 Au3+/Au+Au3
14、2eAu 1.41 Br5+/Br-BrO3 6H6eBr3H2O 1.424 I+/I22HIO2H 2eI22H2O 1.439 Cl5+/Cl-ClO3 6H6eCl3H2O 1.451 Pb4+/Pb2+PbO24H 2ePb22H2O 1.455 Cl5+/Cl2ClO3 6H5e1/2Cl23H2O 1.47 CrO2(+4)/Cr3+CrO24H eCr32H2O 1.48二氧化铬 Cl+/Cl-HClOH 2eClH2O 1.482 Au3+/AuAu3 3eAu 1.498 Mn7+/Mn2+MnO4 8H5eMn24H2O 1.507 Cl4+/Cl-ClO24H 5eCl
15、2H2O 1.511 Br5+/Br2BrO3 6H5el/2Br23H2O 1.52 Mn3+/Mn2+Mn3 eMn2 1.5415注 5 Cl3+/Cl-HClO23H 4eCl2H2O 1.57 N2+/N+2NO2H 2eN 2OH2O 1.59 Br+/Br2HBrOH el/2Br2(aq)H2O 1.595 I7+/I5+H5IO6H 2eIO33H2O 1.603注 6 Cl+/Cl2HClOH e1/2Cl2H2O 1.611 Cl3+/Cl2HClO23H 2e1/2Cl22H2O 1.628 Cl3+/Cl+HClO22H 2eHClOH2O 1.645 Ni4+/Ni
16、2+NiO24H 2eNi22H2O 1.678 Mn7+/Mn4+MnO4 4H3eMnO22H2O 1.68注 7 Pb4+/Pb2+PbO2SO42 4H2ePbSO42H2O 1.69 Au+/AuAu eAu 1.691 Ce4+/Ce3+Ce4 eCe3 1.74注 8 Br7+/Br5+BrO4 2H2eBrO3H2O 1.763注 9 N+/N2N2O2H 2eN2H2O 1.766 O-(H2O2)/O2-(H2O)H2O22H 2e2H 2O 1.776 NiO42 /NiO2 NiO42 4H2eNiO22H2O 1.8 Co3+/Co2+Co3 eCo2 1.808 Co3+/Co2+Co3 eCo2 1.83稀硫酸中 Co3+/Co2+Co3 eCo2 1.92稀高氯酸 Ag2+/Ag+Ag2 eAg 1.93稀硝酸 Ag2+/Ag+Ag2 eAg 1.98稀硫酸 Ag2+/Ag+Ag2 eAg 2.0稀高氯酸 S2O82 / SO42 S2O82 2e2SO42 2.01 Bi5+/Bi3+BiO3 2H2eBi3H2O 2.03铋酸盐 O3/
