【稳定常数】络合平衡的平衡常数。通常指络合物的累积稳定常数，用K稳表示。例如： 对具有相同配位体数目的同类型络合物来说，K稳值愈大，络合物愈稳定。
金属-无机配位体配合物的稳定常数
配位体 金属离子 配位体数目nlgβn
NH3 Ag+ 1,2 3.24,7.05
Au3+ 4 10.3
Cd2+ 1,2,3,4,5,6 2.65,4.75,6.19,7.12,6.80,5.14
Co2+ 1,2,3,4,5,6 2.11,3.74,4.79,5.55,5.73,5.11
Co3+ 1,2,3,4,5,6 6.7,14.0,20.1,25.7,30.8,35.2
Cu+ 1,2 5.93,10.86
Cu2+ 1,2,3,4,5 4.31,7.98,11.02,13.32,12.86
Fe2+ 1 1.17
Fe3+ 2 9.8
Hg2+ 1,2,3,4 6.74,13.22,14.07,15.07
In3+ 1,2,3,4 1.62,2.44,1.70,1.60
Pb2+ 1,2,3 1.42,2.23,3.23
Pd2+ 1,2,3,4 6.1,10.7,13.1,15.7
Pt2+ 2,3,4 11.5,14.5,16.0
Sb3+ 1,2,3,4 2.26,3.49,4.18,4.72
Sn2+ 1,2,3,4 1.51,2.24,2.03,1.48
Tl3+ 1,2,3,4 8.14,13.60,15.78,18.00
Th4+ 1,2 1.38,0.38
Zn2+ 1,2,3,4 0.43,0.61,0.53,0.20
Zr4+ 1,2,3,4 0.9,1.3,1.5,1.2
CN- Ag+ 2,3,4 21.1,21.7,20.6
Au+ 2 38.3
Cd2+ 1,2,3,4 5.48,10.60,15.23,18.78
Cu+ 2,3,4 24.0,28.59,30.30
Fe2+ 6 35.0
Fe3+ 6 42.0
Hg2+ 4 41.4
Ni2+ 4 31.3
Zn2+ 1,2,3,4 5.3,11.70,16.70,21.60
F- Al3+ 1,2,3,4,5,6 6.11,11.12,15.00,18.00,19.40,19.80
Be2+ 1,2,3,4 4.99,8.80,11.60,13.10
Bi3+ 1 1.42
Co2+ 1 0.4
Cr3+ 1,2,3 4.36,8.70,11.20
Cu2+ 1 0.9
Fe2+ 1 0.8
Fe3+ 1,2,3,5 5.28,9.30,12.06,15.77
Ga3+ 1,2,3 4.49,8.00,10.50
Hf4+ 1,2,3,4,5,6 9.0,16.5,23.1,28.8,34.0,38.0
Hg2+ 1 1.03
In3+ 1,2,3,4 3.70,6.40,8.60,9.80
Mg2+ 1 1.30
Mn2+ 1 5.48
Ni2+ 1 0.50
Pb2+ 1,2 1.44,2.54
Sb3+ 1,2,3,4 3.0,5.7,8.3,10.9
Sn2+ 1,2,3 4.08,6.68,9.50
Th4+ 1,2,3,4 8.44,15.08,19.80,23.20
TiO2+ 1,2,3,4 5.4,9.8,13.7,18.0
Zn2+ 1 0.78
Zr4+ 1,2,3,4,5,6 9.4,17.2,23.7,29.5,33.5,38.3
I- Ag+ 1,2,3 6.58,11.74,13.68
Bi3+ 1,4,5,6 3.63,14.95,16.80,18.80
Cd2+ 1,2,3,4 2.10,3.43,4.49,5.41
Cu+ 2 8.85
Fe3+ 1 1.88
Hg2+ 1,2,3,4 12.87,23.82,27.60,29.83
Pb2+ 1,2,3,4 2.00,3.15,3.92,4.47
Pd2+ 4 24.5
Tl+ 1,2,3 0.72,0.90,1.08
Tl3+ 1,2,3,4 11.41,20.88,27.60,31.82
OH- Ag+ 1,2 2.0,3.99
Al3+ 1,4 9.27,33.03
As3+ 1,2,3,4 14.33,18.73,20.60,21.20
Be2+ 1,2,3 9.7,14.0,15.2
Bi3+ 1,2,4 12.7,15.8,35.2
Ca2+ 1 1.3
Cd2+ 1,2,3,4 4.17,8.33,9.02,8.62
Ce3+ 1 4.6
Ce4+ 1,2 13.28,26.46
Co2+ 1,2,3,4 4.3,8.4,9.7,10.2
Cr3+ 1,2,4 10.1,17.8,29.9
Cu2+ 1,2,3,4 7.0,13.68,17.00,18.5
Fe2+ 1,2,3,4 5.56,9.77,9.67,8.58
Fe3+ 1,2,3 11.87,21.17,29.67
Hg2+ 1,2,3 10.6,21.8,20.9
In3+ 1,2,3,4 10.0,20.2,29.6,38.9
Mg2+ 1 2.58
Mn2+ 1,3 3.9,8.3
Ni2+ 1,2,3 4.97,8.55,11.33
Pa4+ 1,2,3,4 14.04,27.84,40.7,51.4
Pb2+ 1,2,3 7.82,10.85,14.58
Pd2+ 1,2 13.0,25.8
Sb3+ 2,3,4 24.3,36.7,38.3
Sc3+ 1 8.9
Sn2+ 1 10.4
Th3+ 1,2 12.86,25.37
Ti3+ 1 12.71
Zn2+ 1,2,3,4 4.40,11.30,14.14,17.66
Zr4+ 1,2,3,4 14.3,28.3,41.9,55.3