有那几种标准电极电势,求标准电极电势表

发布时间:2020-07-10 14:06:56

有那几种标准电极电势,求标准电极电势表

网友回答

1.标准氢电极  电极符号: Pt|H2(101.3kPa)|H+(1mol.L-1)   电极反应: 2H+ + 2e = H2(g)   E

网友回答

1 在酸性溶液中 (298K)
    电对 方程式 Eq/V
    Li(I)-(0) Li++e-=Li -3.0401
    Cs(I)-(0) Cs++e-=Cs -3.026
    Rb(I)-(0) Rb++e-=Rb -2.98
    K(I)-(0) K++e-=K -2.931
    Ba(II)-(0) Ba2++2e-=Ba -2.912
    Sr(II)-(0) Sr2++2e-=Sr -2.89
    Ca(II)-(0) Ca2++2e-=Ca -2.868
    Na(I)-(0) Na++e-=Na -2.71
    La(III)-(0) La3++3e-=La -2.379
    Mg(II)-(0) Mg2++2e-=Mg -2.372
    Ce(III)-(0) Ce3++3e-=Ce -2.336
    H(0)-(-I) H2(g)+2e-=2H- -2.23
    Al(III)-(0) AlF63-+3e-=Al+6F- -2.069
    Th(IV)-(0) Th4++4e-=Th -1.899
    Be(II)-(0) Be2++2e-=Be -1.847
    U(III)-(0) U3++3e-=U -1.798
    Hf(IV)-(0) HfO2++2H++4e-=Hf+H2O -1.724
    Al(III)-(0) Al3++3e-=Al -1.662
    Ti(II)-(0) Ti2++2e-=Ti -1.630
    Zr(IV)-(0) ZrO2+4H++4e-=Zr+2H2O -1.553
    Si(IV)-(0) [SiF6]2-+4e-=Si+6F- -1.24
    Mn(II)-(0) Mn2++2e-=Mn -1.185
    Cr(II)-(0) Cr2++2e-=Cr -0.913
    Ti(III)-(II) Ti3++e-=Ti2+ -0.9
    B(III)-(0) H3BO3+3H++3e-=B+3H2O -0.8698
    *Ti(IV)-(0) TiO2+4H++4e-=Ti+2H2O -0.86
    Te(0)-(-II) Te+2H++2e-=H2Te -0.793
    Zn(II)-(0) Zn2++2e-=Zn -0.7618
    Ta(V)-(0) Ta2O5+10H++10e-=2Ta+5H2O -0.750
    Cr(III)-(0) Cr3++3e-=Cr -0.744
    Nb(V)-(0) Nb2O5+l0H++10e-=2Nb+5H2O -0.644
    As(0)-(-III) As+3H++3e-=AsH3 -0.608
    U(IV)-(III) U4++e-=U3+ -0.607
    Ga(III)-(0) Ga3++3e-=Ga -0.549
    P(I)-(0) H3PO2+H++e-=P+2H2O -0.508
    P(III)-(I) H3PO3+2H++2e-=H3PO2+H2O -0.499
    *C(IV)-(III) 2CO2+2H++2e-=H2C2O4 -0.49
    Fe(II)-(0) Fe2++2e-=Fe -0.447
    Cr(III)-(II) Cr3++e-=Cr2+ -0.407
    Cd(II)-(0) Cd2++2e-=Cd -0.4030
    Se(0)-(-II) Se+2H++2e-=H2Se(aq) -0.399
    Pb(II)-(0) PbI2+2e-=Pb+2I- -0.365
    Eu(III)-(II) Eu3++e-=Eu2+ -0.36
    Pb(II)-(0) PbSO4+2e-=Pb+SO42- -0.3588
    In(III)-(0) In3++3e-=In -0.3382
    Tl(I)-(0) Tl++e-=Tl -0.336
    Co(II)-(0) Co2++2e-=Co -0.28
    P(V)-(III) H3PO4+2H++2e-=H3PO3+H2O -0.276
    Pb(II)-(0) PbCl2+2e-=Pb+2Cl- -0.2675
    Ni (II)-(0) Ni2++2e-=Ni -0.257
    V(III)-(II) V3++e-=V2+ -0.255
    Ge(IV)-(0) H2GeO3+4H++4e-=Ge+3H2O -0.182
    Ag(I)-(0) AgI+e-=Ag+I- -0.15224
    Sn(II)-(0) Sn2++2e-=Sn -0.1375
    Pb(II)-(0) Pb2++2e-=Pb -0.1262
    *C(IV)-(II) CO2(g)+2H++2e-=CO+H2O -0.12
    P(0)-(-III) P(white)+3H++3e-=PH3(g) -0.063
    Hg(I)-(0) Hg2I2+2e-=2Hg+2I- -0.0405
    Fe(III)-(0) Fe3++3e-=Fe -0.037
    H(I)-(0) 2H++2e-=H2 0.0000
    Ag(I)-(0) AgBr+e-=Ag+Br- 0.07133
    S(II.V)-(II) S4O62-+2e-=2S2O32- 0.08
    *Ti(IV)-(III) TiO2++2H++e-=Ti3++H2O 0.1
    S(0)-(-II) S+2H++2e-=H2S(aq) 0.142
    Sn(IV)-(II) Sn4++2e-=Sn2+ 0.151
    Sb(III)-(0) Sb2O3+6H++6e-=2Sb+3H2O 0.152
    Cu(II)-(I) Cu2++e-=Cu+ 0.153
    Bi(III)-(0) BiOCl+2H++3e-=Bi+Cl-+H2O 0.1583
    S(VI)-(IV) SO42-+4H++2e-=H2SO3+H2O 0.172
    Sb(III)-(0) SbO++2H++3e-=Sb+H2O 0.212
    Ag(I)-(0) AgCl+e-=Ag+Cl- 0.22233
    As(III)-(0) HAsO2+3H++3e-=As+2H2O 0.248
    Hg(I)-(0) Hg2Cl2+2e-=2Hg+2Cl-(饱和KCl) 0.26808
    Bi(III)-(0) BiO++2H++3e-=Bi+H2O 0.320
    U(VI)-(IV) UO22++4H++2e-=U4++2H2O 0.327
    C(IV)-(III) 2HCNO+2H++2e-=(CN)2+2H2O 0.330
    V(IV)-(III) VO2++2H++e-=V3++H2O 0.337
    Cu(II)-(0) Cu2++2e-=Cu 0.3419
    Re(VII)-(0) ReO4-+8H++7e-=Re+4H2O 0.368
    Ag(I)-(0) Ag2CrO4+2e-=2Ag+CrO42- 0.4470
    S(IV)-(0) H2SO3+4H++4e-=S+3H2O 0.449
    Cu(I)-(0) Cu++e-=Cu 0.521
    I(0)-(-I) I2+2e-=2I- 0.5355
    I(0)-(-I) I3-+2e-=3I- 0.536
    As(V)-(III) H3AsO4+2H++2e-=HAsO2+2H2O 0.560
    Sb(V)-(III) Sb2O5+6H++4e-=2SbO++3H2O 0.581
    Te(IV)-(0) TeO2+4H++4e-=Te+2H2O 0.593
    U(V)-(IV) UO2++4H++e-=U4++2H2O 0.612
    **Hg(II)-(I) 2HgCl2+2e-=Hg2Cl2+2Cl- 0.63
    Pt(IV)-(II) [PtCl6]2-+2e-=[PtCl4]2-+2Cl- 0.68
    O(0)-(-I) O2+2H++2e-=H2O2 0.695
    Pt(II)-(0) [PtCl4]2-+2e-=Pt+4Cl- 0.755
    *Se(IV)-(0) H2SeO3+4H++4e-=Se+3H2O 0.74
    Fe(III)-(II) Fe3++e-=Fe2+ 0.771
    Hg(I)-(0) Hg22++2e-=2Hg 0.7973
    Ag(I)-(0) Ag++e-=Ag 0.7996
    Os(VIII)-(0) OsO4+8H++8e-=Os+4H2O 0.8
    N(V)-(IV) 2NO3-+4H++2e-=N2O4+2H2O 0.803
    Hg(II)-(0) Hg2++2e-=Hg 0.851
    Si(IV)-(0) (quartz)SiO2+4H++4e-=Si+2H2O 0.857
    Cu(II)-(I) Cu2++I-+e-=CuI 0.86
    N(III)-(I) 2HNO2+4H++4e-=H2N2O2+2H2O 0.86
    Hg(II)-(I) 2Hg2++2e-=Hg22+ 0.920
    N(V)-(III) NO3-+3H++2e-=HNO2+H2O 0.934
    Pd(II)-(0) Pd2++2e-=Pd 0.951
    N(V)-(II) NO3-+4H++3e-=NO+2H2O 0.957
    N(III)-(II) HNO2+H++e-=NO+H2O 0.983
    I(I)-(-I) HIO+H++2e-=I-+H2O 0.987
    V(V)-(IV) VO2++2H++e-=VO2++H2O 0.991
    V(V)-(IV) V(OH)4++2H++e-=VO2++3H2O 1.00
    Au(III)-(0) [AuCl4]-+3e-=Au+4Cl- 1.002
    Te(VI)-(IV) H6TeO6+2H++2e-=TeO2+4H2O 1.02
    N(IV)-(II) N2O4+4H++4e-=2NO+2H2O 1.035
    N(IV)-(III) N2O4+2H++2e-=2HNO2 1.065
    I(V)-(-I) IO3-+6H++6e-=I-+3H2O 1.085
    Br(0)-(-I) Br2(aq)+2e-=2Br- 1.0873
    Se(VI)-(IV) SeO42-+4H++2e-=H2SeO3+H2O 1.151
    Cl(V)-(IV) ClO3-+2H++e-=ClO2+H2O 1.152
    Pt(II)-(0) Pt2++2e-=Pt 1.18
    Cl(VII)-(V) ClO4-+2H++2e-=ClO3-+H2O 1.189
    I(V)-(0) 2IO3-+12H++10e-=I2+6H2O 1.195
    Cl(V)-(III) ClO3-+3H++2e-=HClO2+H2O 1.214
    Mn(IV)-(II) MnO2+4H++2e-=Mn2++2H2O 1.224
    O(0)-(-II) O2+4H++4e-=2H2O 1.229
    Tl(III)-(I) T13++2e-=Tl+ 1.252
    Cl(IV)-(III) ClO2+H++e-=HClO2 1.277
    N(III)-(I) 2HNO2+4H++4e-=N2O+3H2O 1.297
    **Cr(VI)-(III) Cr2O72-+14H++6e-=2Cr3++7H2O 1.33
    Br(I)-(-I) HBrO+H++2e-=Br-+H2O 1.331
    Cr(VI)-(III) HCrO4-+7H++3e-=Cr3++4H2O 1.350
    Cl(0)-(-I) Cl2(g)+2e-=2Cl- 1.35827
    Cl(VII)-(-I) ClO4-+8H++8e-=Cl-+4H2O 1.389
    Cl(VII)-(0) ClO4-+8H++7e-=1/2Cl2+4H2O 1.39
    Au(III)-(I) Au3++2e-=Au+ 1.401
    Br(V)-(-I) BrO3-+6H++6e-=Br-+3H2O 1.423
    I(I)-(0) 2HIO+2H++2e-=I2+2H2O 1.439
    Cl(V)-(-I) ClO3-+6H++6e-=Cl-+3H2O 1.451
    Pb(IV)-(II) PbO2+4H++2e-=Pb2++2H2O 1.455
    Cl(V)-(0) ClO3-+6H++5e-=1/2Cl2+3H2O 1.47
    Cl(I)-(-I) HClO+H++2e-=Cl-+H2O 1.482
    Br(V)-(0) BrO3-+6H++5e-=l/2Br2+3H2O 1.482
    Au(III)-(0) Au3++3e-=Au 1.498
    Mn(VII)-(II) MnO4-+8H++5e-=Mn2++4H2O 1.507
    Mn(III)-(II) Mn3++e-=Mn2+ 1.5415
    Cl(III)-(-I) HClO2+3H++4e-=Cl-+2H2O 1.570
    Br(I)-(0) HBrO+H++e-=l/2Br2(aq)+H2O 1.574
    N(II)-(I) 2NO+2H++2e-=N2O+H2O 1.591
    I(VII)-(V) H5IO6+H++2e-=IO3-+3H2O 1.601
    Cl(I)-(0) HClO+H++e-=1/2Cl2+H2O 1.611
    Cl(III)-(I) HClO2+2H++2e-=HClO+H2O 1.645
    Ni(IV)-(II) NiO2+4H++2e-=Ni2++2H2O 1.678
    Mn(VII)-(IV) MnO4-+4H++3e-=MnO2+2H2O 1.679
    Pb(IV)-(II) PbO2+SO42-+4H++2e-=PbSO4+2H2O 1.6913
    Au(I)-(0) Au++e-=Au 1.692
    Ce(IV)-(III) Ce4++e-=Ce3+ 1.72
    N(I)-(0) N2O+2H++2e-=N2+H2O 1.766
    O(-I)-(-II) H2O2+2H++2e-=2H2O 1.776
    Co(III)-(II) Co3++e-=Co2+(2mol·L-1 H2SO4) 1.83
    Ag(II)-(I) Ag2++e-=Ag+ 1.980
    S(VII)-(VI) S2O82-+2e-=2SO42- 2.010
    O(0)-(-II) O3+2H++2e-=O2+H2O 2.076
    O(II)-(-II) F2O+2H++4e-=H2O+2F- 2.153
    Fe(VI)-(III) FeO42-+8H++3e-=Fe3++4H2O 2.20
    O(0)-(-II) O(g)+2H++2e-=H2O 2.421
    F(0)-(-I) F2+2e-=2F- 2.866
    F2+2H++2e-=2HF 3.053
以上问题属网友观点,不代表本站立场,仅供参考!