最常用元素的标准电极电势简表.doc

《最常用元素的标准电极电势简表.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、准--标准电极电势表--金属还原性方程式Eq/V非金属氧化性方程式Eq/VLi(I)-(0)Li＋＋e-＝Li-3.04P(0)-(-III)P(white)＋3H＋＋3e-＝PH3(g)-0.06K(I)-(0)K＋＋e-＝K-2.93S(0)-(-II)S＋2H＋＋2e-＝H2S(aq)+0.14Ca(II)-(0)Ca2＋＋2e-＝Ca-2.87I(0)-(-I)I2＋2e-＝2I-+0.54Na(I)-(0)Na＋＋e-＝Na-2.71Fe(III)-(II)Fe3＋＋e-＝Fe2＋+0.77Mg(II)-(0)Mg2＋＋2e-＝Mg-2.37

2、Ag(I)-(0)Ag＋＋e-＝Ag+0.80Al(III)-(0)Al3＋＋3e-＝Al-1.66N(V)－(IV)2NO3－＋4H＋＋2e－＝N2O4＋2H2O0.803Mn(II)-(0)Mn2＋＋2e-＝Mn-1.19Br(0)-(-I)Br2(aq)＋2e－＝2Br－+1.09Zn(II)-(0)Zn2＋＋2e-＝Zn-0.76Mn(IV)-(II)MnO2＋4H＋＋2e-＝Mn2＋＋2H2O+1.28Fe(II)-(0)Fe2＋＋2e-＝Fe-0.45O(0)-(-II)O2＋4H＋＋4e-＝2H2O+1.23Sn(II)-(0)Sn2＋＋

3、2e-＝Sn-0.14Cr(VI)-(III)Cr2O72-+14H＋+6e-＝2Cr3＋＋7H2O+1.33Pb(II)-(0)Pb2＋＋2e-＝Pb-0.13Cl(0)-(-I)Cl2(g)＋2e-＝2Cl-+1.36H(I)-(0)2H＋＋2e-＝H20.00Cl(I)-(0)HClO＋H＋＋e-＝1/2Cl2＋H2O+1.61Cu(II)-(I)Cu2＋＋e-＝Cu＋+0.34Mn(VII)-(IV)MnO4-＋4H＋＋3e-＝MnO2＋2H2O+1.68Hg(II)-(0)Hg2＋＋2e-＝Hg+0.78O(-I)-(-II)H2O2＋2H＋

4、＋2e-＝2H2O+1.78Ag(I)-(0)AgBr＋e-＝Ag＋Br-+0.80F(0)-(-I)F2＋2e-＝2F-+2.87Pt(II)-(0)Pt2＋＋2e-＝Pt+1.18Au(III)-(I)Au3＋＋2e-＝Au＋+1.40氧化剂的氧化性顺序：氟>锰>氯>溴>银>铁>碘>硫次氯酸、次溴酸、次碘酸F2>MnO4->Cl2>Br2>Ag+>Fe3+>I2>H2SI(I)-(0)2HIO＋2H＋＋2e-＝I2＋2H2O+1.44Br(I)-(0)HBrO+H＋+e-＝l/2Br2(aq)＋H2O+1.57Cl(I)-(0)HClO＋H＋＋e-

5、＝1/2Cl2＋H2O+1.61亚氯酸、高氯酸Cl(VII)-(0)ClO4-＋8H＋+7e-＝1/2Cl2＋4H2O+1.39Cl(III)-(-I)HClO2＋3H＋＋4e-＝Cl-＋2H2O+1.57溴酸、氯酸、碘酸I(V)-(0)2IO3-＋12H＋＋10e-＝I2＋6H2O+1.20Cl(V)-(-I)ClO3-＋6H＋＋6e-＝Cl-＋3H2O+1.45Br(V)-(0)BrO3-＋6H＋+5e-＝l/2Br2＋3H2O+1.481