配合物的稳定常数

配合物稳定常数StabilityConstantsofCoordinationCompounds络合反应的平衡常数用配合物稳定常数表示，又称配合物形成常数。此常数值越大，说明形成的配合物越稳定。其倒数用来表示配合物的解离程度，称为配合物的不稳定常数。以下表格中，表（1）中除特别说明外是在25°C下，离子强度I=0；表（2）中离子强度都是在有限的范围内，I^0o表中0n表示累积稳定常数。金属-无机配位体配合物的稳定常数StabilityConstantsofMetalIon-InorganicCoordinationCompounds序号(No.)配位体(Ligand)金属离子(Metalion)配位体数目n(Numberofligand)lg/J1NH3Ag+1,23.24,7.05Au3+410.3Cd2+1,2,3,4,5,62.65,4.75,6.19,7.12,6.80,5・14Co2+1,2,3,4,5,62.11,3.74,4.79,5.55,5.73,5・11Co3+1,2,3,4,5,66.7,14・0,2O・1,25.7,30・8,35.2Cu+1,25.93,10・86Cu2+12,3,4,54.31,7.98,11.02,1332,12・86Fe2+1,21・4,2・2Hg2+12,3,48・8,17・5,18・5,19.28Mn2+1,20・8,1・3Ni2+1,2,3,4,5,62.80,5.04,6.77,7.96,8.71,8.74Pd2+12,3,49.6,18.5,26.0,32.8Pt2+635.3Zn2+12,3,42.37,4・81,7・31,9・462Br-Ag+12,3,44.38,7.33,8・00,8・73Bi3+1,2,3,4,5,62.37,4.20,5.90,7.30,8.20,8.30Cd2+12,3,41.75,2.34,3.32,3.70,Ce3+10.42Cu+25.89Cu2+10.30Hg2+12,3,49.05,17.32,19.74,21.00In3+1,21.30,1.88Pb2+12,3,41.77,2.60,3.00,2.30Pd2+12,3,45.17,9.42,12.70,14・90Rh3+234,5,614.3,16.3,17.6,18.4,17.2SC3+1,22・08,3・08Sn2+1,2,31・11,1・81,1.46Tl3+1,2,3,4,5,69.7,16.6,21.2,23・9,29・2,31・6U4+10・18Y3+11.323Cl-Ag+1,2,43.04,5.04,5.30Bi3+12,3,42.44,4.7,5.0,5.6Cd2+12,3,41.95,2.50,2.60,2.80Co3+11・42Cu+2,35・5,5.7Cu2+1,20.1,-0・6Fe2+11.17Fe3+29.8Hg2+12,3,46.74,13.22,14.07,15.07In3+12,3,41.62,2.44,1.70,1・60Pb2+1,2,31.42,2.23,3.23Pd2+12,3,46・1,10・7,13・1,15・7Pt2+2,3,411・5,14・5,16・0Sb3+12,3,42.26,3.49,4.18,4.72Sn2+12,3,41.51,2.24,2.03,1.48Tl3+12,3,48・14,13・60,15.78,18・00Th4+1,21.38,0.38Zn2+12,3,40.43,0.61,0.53,0.20Zr4+12,3,40・9,1・3,1・5,1・24CN-Ag+2,3,421・1,21.7,20・6Au+238.3Cd2+12,3,45・48,10・60,15.23,18.78Cu+2,3,424・0,28・59,30・30Fe2+635・0Fe3+642.0Hg2+441・4Ni2+431.3Zn2+12,3,45.3,11.70,16.70,21.605F-Al3+1,2,3,4,5,66.11,11Be2+12,3,44.99,8.80,11.60,13.10Bi3+11・42Co2+10.4Cr3+1,2,34.36,8.70,11.20Cu2+10.9Fe2+10.8Fe3+1,2,3,55.28,9.30,12.06,15.77Ga3+1,2,34.49,8.00,10.50Hf4+1,2,3,4,5,69.0,16.5,23.1,28.8,34.0,38.0Hg2+11.03In3+1,2,3,43.70,6.40,8.60,9.80Mg2+11.30Mn2+15・48Ni2+10・50Pb2+1,21.44,2・54Sb3+1,2,3,43.0,5.7,8.3,10.9Sn2+1,2,34.08,6・68,9・50Th4+1,2,3,48.44,15・08,19・80,23・20TiO2+1,2,3,45.4,9・8,13・7,18・0Zn2+10.78Zr4+1,2,3,4,5,69.4,17.2,23.7,29.5,33.5,38.36I-Ag+1,2,36・58,11.74,13・68Bi3+1,4,5,63・63,14.95,16.80,18・80Cd2+1,2,3,42.10,3.43,4.49,5.41Cu+28・85Fe3+11・88Hg2+1,2,3,412.87,23.82,27.60,29・83Pb2+1,2,3,42.00,3・15,3・92,4・47Pd2+424・5T1+1,2,30・72,0・90,1・08Tl3+1,2,3,411.41,20.88,27.60,31・827OH-Ag+1,22.0,3.99Al3+1,49,27,33,03As3+1,2,3,414.33,18.73,20.60,21.20Be2+1,2,39.7,14.0,15.2Bi3+1,2,412.7,15・8,35・2Ca2+11.3Cd2+1,2,3,44.17,8.33,9.02,8・62Ce3+14.6Ce4+1,213.28,26.46CO2+1,2,3,44.3,8.4,9.7,10.2Cr3+1,2,410・1,17・8,29・9Cu2+1,2,3,47.0,13.68,17・00,18・5Fe2+1,2,3,45.56,9.77,9・67,8・58Fe3+1,2,311・87,21.17,29・67Hg2+1,2,310・6,21・8,20・9In3+1,2,3,410.0,20.2,29・6,38・9Mg2+12.58Mn2+1,33・9,8.3Ni2+1,2,34.97,8.55,11.33Pa4+1,2,3,414.04,27.84,40.7,51.4Pb2+1,2,37.82,10・85,14・58Pd2+1,213・0,25・8Sb3+2,3,424.3,36.7,38.3SC3+18.9Sn2+110・4Th3+1,212・86,25・37Ti3+112.71Zn2+1,2,3,44.40,11.30,14.14,17.66Zr4+1,2,3,414.3,28.3,41.9,55.38NO3-Ba2+10・92Bi3+11・26Ca2+10・28Cd2+10・40Fe3+11.0Hg2+10.35Pb2+11・18Tl+10.33Tl3+10・929po4-27Ba2+14.6Ca2+14・6Cd3+15.6Co2+16.1Cu2+1,26.7,9・0Hg2+212.38Mg2+15.7Ni2+1,25・8,7・4Pb2+1,27.3,10・15Zn2+1,28.7,11・010SCN-Ag+1,2,3,44.6,7.57,9.08,10.08Bi3+1,2,3,4,5,61.67,3.00,4.00,4.80,5.50,6・10Cd2+1,2,3,41.39,1・98,2・58,3・6Cr3+1,21.87,2・98Cu+1,212・11,5・18Cu2+1,21.90,3・00Fe3+1,2,3,4,5,62.21,3.64,5.00,6.30,6.20,6・10Hg2+1,2,3,49・08,16・86,19・70,21・70Ni2+1,2,31.18,1・64,1・81Pb2+1,2,30.78,0・99,1・00Sn2+1,2,31・17,1.77,1.74Th4+1,21・08,1.78Zn2+1,2,3,41.33,1.91,2.00,1・6011SO2-23Ag+1,28.82,13.46Cd2+1,23.92,6.44Cu+1,2,310.27,12.22,13.84Fe3+12.10Hg2+2,3,429.44,31・90,33.24Pb2+2,35.13,6.3512SO42-Ag+11.3Ba2+12.7Bi3+12,3,4,51.98,3.41,4.08,4.34,4.60Fe3+1,24.04,5.38Hg2+1,21.34,2.40In3+1,2,31.78,1・88,2・36Ni2+12.4Pb2+12.75Pr3+1,23.62,4・92Th4+1,23.32,5・50Zr4+1,2,33.79,6.64,7.77金属-有机配位体配合物的稳定常数（表中离子强度都是在有限的范围内，1"0。StabilityConstantsofMetalIon-OrganicCoordinationCompounds序号(No.)配位体(Ligand)金属离子(Metalion)配位体数目n(Numberofligand)毗1乙二胺四乙酸(EDTA)[(hoocch2)2nch2]2Ag+17.32A13+116.11Ba2+17.78Be2+19.3Bi3+122.8Ca2+111.0Cd2+116.4Co2+116.31Co3+136.0Cr3+123.0Cu2+118.7Fe2+114.83Fe3+124.23Ga3+120.25Hg2+121.80In3+124.95Li+12.79Mg2+18.64Mn2+113.8Mo(V)16.36Na+11.66Ni2+118.56Pb2+118.3Pd2+118.5SC2+123・1Sn2+122.1Sr2+18.80Th4+123.2TiO2+117.3Tl3+122.5U4+117.50VO2+118.0Y3+118.32Zn2+116.4Zr4+119.42乙酸(Aceticacid)CH3COOHAg+1,20.73,0.64Ba2+10.41Ca2+10.6Cd2+1,2,31.523,2.4Ce3+1,2,3,41・68,2.693.13,3.18C02+1,21.5,1・9Cr3+12,34・63,7.08,9・60Cu2+(20°C)1詁2.16,3.20In3+1,2,3,43.50,5.95,7.90,9.08Mn2+1,29.84,2.06Ni2+1,21.12,1・81Pb2+1,2,3,42.52,4.0,6・4,8・5Sn2+1,2,33.3,6.0,7.3Tl3+1,2,3,46.17,11.28,15・10,18・3Zn2+11・53乙酰丙酮Al3+(30C)1,2&6,15.5(Acetylacetone)CH3COCH2CH3323Cd2+1,23・84,6.66Co2+1,25.40,9.54Cr2+1,25・96,11.7Cu2+1,28.27,16.34Fe2+1,25.07,8・67Fe3+1,2,311.4,22.1,26.7Hg2+221.5Mg2+1,23.65,6.27Mn2+1,24.24,7.35Mn3+33.86Ni2+(20°C)1,2,36.06,10.77,13.09Pb2+26.32Pd2+(30°C)1,216.2,27.1Th4+1,2,3,4&8,16.2,22.5,26.7Ti3+1,2,310.43,18.82,24・90V2+1,2,35.4,10.2,14.7Zn2+(30C)1,24.98,8・81Zr4+1,2,3,48.4,16・0,23.2,30・14草酸(Oxalicacid)HOOCCOOHAg+12.41A13+1,2,37.26,13.0,16.3Ba2+12.31Ca2+13.0Cd2+1,23・52,5.77Co2+1,2,34.79,6.7,9.7Cu2+1,26.23,10.27Fe2+1,2,32.9,4.52,5.22Fe3+1,2,39.4,16.2,20.2Hg2+19.66Hg22+26.98Mg2+1,23.43,4.38Mn2+1,23・97,5・80Mn3+1,2,39.98,16・57,19・42Ni2+1,2,35.3,7.64，〜8・5Pb2+1,24・91,6.76Sc3+1,2,3,46.86,11.31,14.32,16.70Th4+424.48Zn2+1,2,34・89,7.60,8・15Zr4+1,2,3,49.80,17.14,20.86,21・155乳酸(Lacticacid)CH3CHOHCOOHBa2+10.64Ca2+11.42Cd2+11.70Co2+11.90Cu2+1,23.02,4.85Fe3+17.1Mg2+11.37Mn2+11.43Ni2+12.22Pb2+1,22.40,3.80Sc2+15.2Th4+15.5Zn2+1,22.20,3.756水杨酸(Salicylicacid)c6h4(oh)coohAl3+114.11Cd2+15.55Co2+1詁6.72,11.42Cr2+1,28.4,15.3Cu2+1,210.60,18.45Fe2+1,26.55,11.25Mn2+1,25.90,9.80Ni2+1,26.95,11.75Th4+1,2,3,44.25,7.60,10.05,11.60TiO2+16.09V2+16.3Zn2+16.857磺基水杨酸(5-sulfosalicylicacid)HO3SC6H3(OH)COOH363A13+(0.1mol/L)1,2,313.20,22.83,28.89Be2+(0.1mol/L)1,211.71,20.81Cd2+@1mol/L)1,216.68,29.08Co2+(0.1mol/L)1,26.13,9・82Cr3+(0.1mol/L)19.56Cu2+(0・1mol/L)1,29.52,16.45Fe2+(0.1mol/L)1,25・9,9・9Fe3+(0.1mol/L)1,2,314.64,25.18^2・12Mn2+(0.1mol/L)1,25.24,8.24Ni2+(0.1mol/L)1,26.42,10.24HNCHCHNH2222Co2+1,2,35.91,10・64,13・94CO3+1,2,318.7,34・9,48・69Cr2+1,25.15,9・19Cu+210.8Cu2+12,310.67,20・0,21・0Fe2+1,2,34.34,7.65,9.70Hg2+1,214.3,23.3Mg2+10.37Mn2+12,32.73,4.79,5.67Ni2+12,37.52,13.84,18.33Pd2+226.90V2+1,24・6,7・5Zn2+12,35.77,10・83,14.1112吡啶(Pyridine)C5H5NAg+1,21・97,4.35Cd2+1,2,3,41.40,1.95,2.27,2.50Co2+1,21・14,1.54Cu2+1,2,3,42.59,4.33,5.93,6.54Fe2+10.71Hg2+12,35.1,10.0,10.4Mn2+1,2,3,41・92,2.77,3.37,3.50Zn2+1,2,3,41.41,1.11,1.61,1.9313甘氨酸(Glycin)HNCHCOOH22Ag+1,23.41,6.89Ba2+10.77Ca2+11.38Cd2+1,24.74,8・60Co2+1,2,35.23,9.25,10.76Cu2+1,2,38.60,15・54,16・27Fe2+(20°C)124・3,7・8Hg2+1,210.3,19.2Mg2+1,23.44,6.46Mn2+1,23・6,6・6Ni2+1,2,36・18,11・14,15・0Pb2+1,25.47,8.92Pd2+1,29.12,17・55Zn2+1,25・52,9.96142-甲基-8-羟基喹啉Cd2+1,2,39.00,9.00,16.60(50%二噁烷)(8-Hydroxy-2-methylquinoline)Ce3+17.71Co2+1,29.63,18・50Cu2+1,212.48,24.00Fe2+1,28.75,17・10Mg2+1,25.24,9・64Mn2+1,27.44,13.99Ni2+1,29.41,17.76Pb2+1,210.30,18.50UO22+1,29.4,17.0Zn2+1,29.82,18.72pH0.00.10.20.30.40.50.60.70.80.9%H)23.6423.0622.4721.8921.3220.7520.1819.6219.0818.541.018.01pH2.5lgaY(H)11.901.11.217.4916.981.31.416.4916.021.51.615.5515.112.62.72.82.93.03.13.23.33.43.53.63.73.83.94.04.111.6211.3511.0910.8410.6010.3710.149.929.709.489.279.068.858.658.448.24EDTA的lgaY(印值lgaY(H)ValuesofEDTApH5.05.15.25.35.45.55.65.75.85.96.06.16.26.36.46.56.6lgaY(H)6.456.266.075.885.695.515.335.154.984.814.654.494.344.204.063.923.79pH7.57.67.77.87.98.08.18.28.38.48.58.68.78.88.99.09.1】叫)2.782.682.572.472.372.272.172.071.971.871.771.671.571.481.381.281.191.714.684.28.046.73.679.21.101.814.274.37.846.83.559.31.011.913.884.47.646.93.439.40.922.013.514.57.447.03.329.50.832.113.164.67.247.13.219.60.752.212.824.77.047.23.109.70.672.312.504.86.847.32.999.80.592.412.194.96.657.42.889.90.52