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Stability constants

Log K

MolID Name Metal Constant Species Reactants T (°C) Ionic Strength (M) Electrolyte logβ (or logK) ΔrH° (kcal/mol) ΔrS° (kcal/mol) ΔrG° (kcal/mol) Ref. for Thermal Dynamics Data
1 Ammonia Hg2+ logβ ML M; L 25 2 NH4NO3 8.75 -12.2 -0.9 0 04MSM
1 Ammonia Hg2+ logβ ML2 M; L; L 25 2 NH4NO3 17.22 -24.6 -3.8 0 04MSM
1 Ammonia Hg2+ logβ ML3 M; L; L; L 25 2 NH4NO3 18.2 -26.5 -5.7 0 04MSM
1 Ammonia Hg2+ logβ ML4 M; L; L; L; L 25 2 NH4NO3 19 -27.4 -5.1 0 04MSM
94 Cysteine Hg2+ logβ ML M; L 25 0.1 NaCl 14.4 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML M; L 25 0.1 14.3 17.8 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML M; L 25 1.0 None 14.3 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML M; L 25 3.0 NaClO4 16.75 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML M; L 25 0.0 None -14.2 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML2 M; L; L 25 0.1 None 23.19 4.1 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML2 M; L; L 25 1.0 None 23.44 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML2 M; L; L 25 3.0 NaClO4 25.97 04MSM
12 1,2-Ethanediamine; Ethylenediamine Hg2+ logK ML2 M; L; L 25 0.0 None -30.4 04MSM
76 4-Nitrophenol Hg2+ logK ML M; L 25 1.0 NaClO4 6.29 04MSM
76 4-Nitrophenol Hg2+ logβ ML2 M; L; L 25 1.0 NaClO4 12.34 04MSM
9 Acetamide; Acetic acid amide Hg2+ logK MLH M; HL 25 0.1 Li+ -7.03 04MSM
9 Acetamide; Acetic acid amide Hg2+ logK ML2H2 M; HL; HL 25 0.1 Li+ -14.61 04MSM
9 Acetamide; Acetic acid amide Hg2+ logK MLH(OH) M; HL; OH 25 0.1 Li+ 5.79 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 0.0 None 4.3 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 0.1 None 3.74 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 0.5 None 3.59 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 1.0 NaClO4 3.57 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 2.0 NaClO4 4.00 04MSM
121 Acetic acid Hg2+ logβ ML M; L 25 3.0 NaClO4 4.22 04MSM
121 Acetic acid Hg2+ logβ ML2 M; L; L 25 3.0 NaClO4 8.45 04MSM
24 Aniline Hg2+ logβ ML M; L 25 1.0 None 4.64 04MSM
24 Aniline Hg2+ logβ ML2 M; L; L 25 1.0 None 9.21 04MSM
133 Benzylamine Hg2+ logK ML M; L 25 0.1 None 7.51 04MSM
133 Benzylamine Hg2+ logK ML M; L; L 25 0.1 None 16.52 04MSM
102 Butanoic acid; Butyric acid Hg2+ logK ML M; L 25 0.1 None 3.73 04MSM
102 Butanoic acid; Butyric acid Hg2+ logK ML M; L 25 0.5 None 3.60 04MSM
102 Butanoic acid; Butyric acid Hg2+ logK ML M; L 25 1.0 None 3.60 04MSM
106 Butylamine Hg2+ logK ML M; L 25 0.5 None 8.74 04MSM
106 Butylamine Hg2+ logK ML2 M; L; L 25 0.5 None 18.14 04MSM
106 Butylamine Hg2+ logK ML3 M; L; L; L 25 0.5 None 19.0 04MSM
106 Butylamine Hg2+ logK ML4 M; L; L; L; L 25 0.5 None 20.0 04MSM
7 Ethylamine Hg2+ logβ ML M; L 25 0.5 None 8.90 04MSM
7 Ethylamine Hg2+ logβ ML2 M; L; L 25 0.5 None 18.44 04MSM
4 Hydrogen sulfide Hg2+ logK ML M; L 20 1.0 None 37.71 None
4 Hydrogen sulfide Hg2+ logK MLH2 M; H2L 20 1.0 None 6.19 None
4 Hydrogen sulfide Hg2+ logK ML2H ML2; H 20 1.0 None 8.30 None
123 Imidazole Hg2+ logK ML M; L 25 3.0 NaClO4 9.18 -18 -18 04MSM
123 Imidazole Hg2+ logK ML2 M; L; L 25 0.1 None 16.83 04MSM
123 Imidazole Hg2+ logK ML2 M; L; L 25 0.5 None -26 04MSM
123 Imidazole Hg2+ logK ML2 M; L; L 25 3.0 NaClO4 18.19 -4 04MSM
123 Imidazole Hg2+ logK ML(OH) MOHL; H 25 3.0 NaClO4 1.54 -6 04MSM
123 Imidazole Hg2+ logK ML(OH) MOHL; H 25 0.5 None -4 04MSM
99 Methylamine Hg2+ logK ML M; L 25 0.5 None 8.66 04MSM
99 Methylamine Hg2+ logK ML2 M; L; L 25 0.5 None 17.86 04MSM
99 Methylamine Hg2+ logK ML3 M; L; L; L 25 0.5 None 18.2 04MSM
99 Methylamine Hg2+ logK ML4 M; L; L; L; L 25 0.5 None 18.5 04MSM
99 Methylamine Hg2+ logK MLCl- MCl; L 25 0.0 None 2.40 -6.8 -11.9 04MSM
99 Methylamine Hg2+ logK ML2Cl- MLCl; L 25 0.0 None 4.61 -7.8 -5.1 04MSM
108 Phenol Hg2+ logK ML M; L 25 1.0 None 8.23 04MSM
108 Phenol Hg2+ logK ML2 M; L; L 25 1.0 None 15.75 04MSM
20 Piperidine; Azacyclohexane Hg2+ logK ML M; L 25 0.5 None 8.74 -12 0 04MSM
20 Piperidine; Azacyclohexane Hg2+ logK ML2 M; L; L 25 0.5 None 17.4 -18 19 04MSM
129 Propanoic acid; Propionic acid Hg2+ logK ML M; L 25 1.0 NaClO4 3.90 None
129 Propanoic acid; Propionic acid Hg2+ logK ML M; L 25 2.0 NaClO4 4.00 None
129 Propanoic acid; Propionic acid Hg2+ logK ML M; L 25 3.0 NaClO4 4.33 None
129 Propanoic acid; Propionic acid Hg2+ logK ML2 M; L; L 25 3.0 NaClO4 8.80 None
111 Pyridine Hg2+ logK ML M; L 25 0.5 NO32- 5.2 -9 -6 04MSM
111 Pyridine Hg2+ logK ML2 M; L; L 25 0.5 NO32- 10.0 -17 -11 04MSM
111 Pyridine Hg2+ logK ML3 M; L; L; L 25 0.5 NO32- 10.3 04MSM
111 Pyridine Hg2+ logβ ML4 M; L; L; L; L 25 0.5 NO32- 10.6 04MSM
32 Triethylamine Hg2+ logK ML M; L 25 0.5 None 7.8 04MSM
32 Triethylamine Hg2+ logK ML2 M; L; L 25 0.5 None 15 04MSM
11 Urea; Carbamide Hg2+ logK ML M; L 30 0.1 None 2.1 04MSM
130 Water Hg2+ logβ ML M; L 25 0.0 None 10.60 04MSM
130 Water Hg2+ logβ ML M; L 25 0.1 None 10.20 04MSM
130 Water Hg2+ logβ ML M; L 25 0.5 None 10.04 04MSM
130 Water Hg2+ logβ ML M; L 25 1.0 NaClO4 10.13 -8.5 17.8 04MSM
130 Water Hg2+ logβ ML M; L 25 3.0 NaClO4 10.71 -8.0 18.8 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 0.0 None 21.83 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 0.1 None 21.20 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 0.5 None 21.18 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 1.0 NaClO4 21.27 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 2.0 NaNO3 21.62 -17.2 39.6 04MSM
130 Water Hg2+ logβ ML2 M; L; L 25 3.0 NaClO4 22.20 -18.0 41.2 04MSM
130 Water Hg2+ logβ M2L M; M; L 25 0.0 None 10.7 04MSM
130 Water Hg2+ logβ M2L M; M; L 25 3.0 NaClO4 11.3 -10.0 18.2 04MSM
130 Water Hg2+ logβ ML3 M; L; L; L 25 0.0 None 35.6 04MSM
130 Water Hg2+ logβ ML3 M; L; L; L 25 3.0 NaClO4 36.1 04MSM
130 Water Hg2+ logK M(OH) M; OH 25 0.0 None -25.44 04MSM
130 Water Hg2+ logK M(OH) M; OH 25 3.0 NaClO4 -25.62 21.4 -45.4 04MSM
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML M; L 25 0.0 NaI 32.55 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ MLH M; L; H 25 0.0 NaI 42.50 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ MLH2 M; L; H; H 25 0.0 NaI 44.51 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML2 M; L; L 25 0.0 NaI 44.63 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML2H M; L; L; H 25 0.0 NaI 53.59 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML2H2 M; L; L; H; H 25 0.0 NaI 60.84 11CFFS
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logK ML M; L 25 0.1 None 18.8 04MSM
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logK ML2 M; L; L 25 0.1 None 24.9 04MSM
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logK ML M; L; L; H 25 0.1 None 2.12 04MSM
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML3H3 M; L; L; L; H; H; H; 25 0.5 NaClO4 72.43 99K-SP
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML2H2 M; L; L; H; H 25 0.5 NaClO4 53.02 99K-SP
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML M; L 25 0.1 NaClO4 38.3 80CJ
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML2 M; L; L 25 0.1 NaClO4 44.4 80CJ
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML M; L 25 0.1 KNO3 16.15 64LM
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML M; L 25 0.15 KNO3 17.5 62KR
134 Penicillamine; 3-Mercapto-D-valine Hg2+ logβ ML M; L; L 25 0.15 KNO3 23.50 62KR
94 Cysteine Hg2+ logβ ML M; L 25 0.0 NaI 35.73 11CFFS
94 Cysteine Hg2+ logβ MLH M; L; H 25 0.0 NaI 43.83 11CFFS
94 Cysteine Hg2+ logβ MLH2 M; L; H; H 25 0.0 NaI 46.12 11CFFS
94 Cysteine Hg2+ logβ ML2 M; L; L 25 0.0 NaI 44.55 11CFFS
94 Cysteine Hg2+ logβ ML2H M; L; L; H 25 0.0 NaI 53.97 11CFFS
94 Cysteine Hg2+ logβ ML2H2 M; L; L; H; H 25 0.0 NaI 62.04 11CFFS
94 Cysteine Hg2+ logβ ML M; L 23 0.025 None 20.5 53P
94 Cysteine Hg2+ logβ ML2 M; L; L 25 0.1 KNO3 43.57 53SK
94 Cysteine Hg2+ logβ ML2H M; L; L; H 25 0.1 KNO3 54.37 53SK
94 Cysteine Hg2+ logβ ML2H2 M; L; L; H; H 25 0.1 KNO3 61.79 53SK
94 Cysteine Hg2+ logβ ML M; L 25 0.1 KNO3 14.21 64LM
94 Cysteine Hg2+ logβ ML2 M; L; L 25 1.0 KNO3 41.80 83DQ
94 Cysteine Hg2+ logβ ML2H M; L; L; H 25 0.1 NaNO3 8.94 86S
94 Cysteine Hg2+ logβ ML2H2 M; L; L; H; H 25 0.1 NaNO3 16.31 86S
135 Glutathione Hg2+ logK ML M; L 25 0.1 None 26.0 04MSM
135 Glutathione Hg2+ logK ML2 M; L; L 25 0.1 None 33.4 04MSM
135 Glutathione Hg2+ logK MLH ML; H 25 0.1 None 6.5 04MSM
135 Glutathione Hg2+ logK MLH2 MHL; H 25 0.1 None 3.2 04MSM
135 Glutathione Hg2+ logK ML MOHL; H 25 0.1 None 10.2 04MSM
135 Glutathione Hg2+ logK ML2H ML2; H 25 0.1 None 9.0 04MSM
135 Glutathione Hg2+ logK ML2H2 MHL2; H 25 0.1 None 9.9 04MSM
135 Glutathione Hg2+ logK ML2H3 MH2L2; H 25 0.1 None 3.0 04MSM
135 Glutathione Hg2+ logβ ML M; L 25 0.0 NaI 33.54 11CFFS
135 Glutathione Hg2+ logβ MLH M; L; H 25 NaI 41.00 11CFFS
135 Glutathione Hg2+ logβ MLH2 M; L; H; H 25 NaI 44.78 11CFFS
135 Glutathione Hg2+ logβ ML2 M; L; L 25 NaI 41.33 11CFFS
135 Glutathione Hg2+ logβ ML2H M; L; L; H 25 NaI 51.63 11CFFS
135 Glutathione Hg2+ logβ ML2H2 M; L; L; H; H 25 NaI 61.07 11CFFS
135 Glutathione Hg2+ logβ ML2H3 M; L; L; H; H; H; 25 NaI 65.58 11CFFS
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML M; L 25 0.0 None -17.1 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML M; L 25 0.5 None 12.87 -18.0 -1.5 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML2 M; L; L 25 0.5 None 23.82 -34.2 -5.8 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML3 M; L; L; L 25 0.5 None 27.6 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML4 M; L; L; L; L 25 0.0 None -43.3 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML4 M; L; L; L; L 25 0.5 None 29.8 -44.3 -12.4 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML MOHL; H 25 0.5 None 4.0 04MSM
154 Hydrogen iodide; Hydriodic acid Hg2+ logK ML2 ML; L 25 0.5 None -27.95 41.1 10.1 04MSM
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logK ML M; L 25 0.1 None 9.94 04MSM
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logK ML2 M; L; L 25 0.1 None 18.1 04MSM
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ MLH M; L; H 25 0.0 None 40.5 11CCFGS
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ MLH M; L; H 25 0.1 NaNO3 39.00 -34.4 63.3 53.20 11CCFGS
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ ML M; L 25 0.0 None 36.4 11CCFGS
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ ML M; L 25 0.1 NaNO3 35.10 -30.6 57.7 47.90 11CCFGS
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ ML2 M; L; L 25 0.0 None 43.6 11CCFGS
152 Mercaptosuccinic acid; Thiomalic acid Hg2+ logβ ML2 M; L; L 25 0.1 NaNO3 42.92 -39.9 62.5 58.6 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ MLH M; L; H 25 0.0 None 37.3 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ MLH M; L; H 25 0.1 NaNO3 36.33 -32.1 58.5 -49.55 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ ML M; L 25 0.0 None 35.1 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ ML M; L 25 0.1 NaNO3 34.17 -32.5 47.3 -46.61 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ ML2 M; L; L 25 0.0 None 43.6 11CCFGS
150 2-Mercaptopropanoic acid; 2-Mercaptopropionic acid; Thiolactic acid Hg2+ logβ ML2 M; L; L 25 0.1 NaNO3 42.68 -41.1 57.7 -58.22 11CCFGS
151 3-Mercaptopropanoic acid Hg2+ logβ MLH M; L; H 25 0.1 NaNO3 35.33 -31.1 57.7 -48.21 11CCFGS
151 3-Mercaptopropanoic acid Hg2+ logβ ML M; L 25 0.1 NaNO3 32.10 -30.6 44.1 -46.18 11CCFGS
151 3-Mercaptopropanoic acid Hg2+ logβ ML2 M; L; L 25 0.1 NaNO3 39.54 -39.2 49.7 -53.94 11CCFGS
155 Hydrogen chloride; Hydrochloric acid Hg2+ logK ML M; L 25 0.0 None 7.30 -5.1 16.3 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logK ML M; L 25 0.5 NaClO4 6.74 -5.5 12.4 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logK ML M; L 25 1.0 NaClO4 6.72 -5.7 12.0 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logK ML M; L 25 2.0 NaClO4 6.87 -5.8 12.3 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML2 M; L; L 25 0.0 None 14.00 -12.3 22.8 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML2 M; L; L 25 0.5 NaClO4 13.22 -12.4 18.9 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML2 M; L; L 25 1.0 NaClO4 13.23 -12.4 18.9 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML2 M; L; L 25 2.0 NaClO4 13.58 -12.3 20.9 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML3 M; L; L; L 25 0.0 None 15.0 -12.2 27.7 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML3 M; L; L; L 25 0.5 NaClO4 14.2 -12.4 23.4 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML3 M; L; L; L 25 1.0 NaClO4 14.2 -12.6 22.7 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML3 M; L; L; L 25 2.0 NaClO4 14.7 -12.9 24.0 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML4 M; L; L; L; L 25 0.0 None 15.6 -14.2 23.7 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML4 M; L; L; L; L 25 0.5 NaClO4 15.2 -14.4 21.2 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML4 M; L; L; L; L 25 1.0 NaClO4 15.3 -14.5 21.3 04MSM
155 Hydrogen chloride; Hydrochloric acid Hg2+ logβ ML4 M; L; L; L; L 25 2.0 NaClO4 15.7 -14.6 22.8 04MSM


References

RefID Reference
04MSM Martell, A. E.; Smith, R. M.; Motekaitis, R. J., Database 46: NIST Critically Selected Stability Constants of Metal Complexes, Version 8
11CFFS Cardiano, P.; Falcone, G.; Foti, C.; Sammartano, S. Sequestration of Hg2+ by Some Biologically Important Thiols, J. Chem. Eng. Data, 2011, 56, 4741.
99K-SP Koszegi-Szalai, H.; Paal, T. Equilibrium studies of mercury(II) complexes with penicillamine. Talanta 1999, 48, 393–402.
80CJ Casas, J.; Jones, M. Mercury(II) complexes with sulphydryl containing chelating agents: stability constant inconsistencies and their resolution. J. Inorg. Nucl. Chem. 1980, 42, 99–102.
64LM Lenz, G.; Martell, A. Metal chelates of some sulfur-containing amino acids. Biochemistry 1964, 3, 745–750.
62KR Kuchinkos, E.; Rosen, Y. Metal chelates of DL-penicillamine. Arch. Biochem. Biophys. 1962, 97, 370–372.
53P Perkins,D.J. A study of the effect of amino acid structure on the stabilities of the complexes formed with metals of group II of the periodic classification. Biochem. J. 1953, 55, 649–652.
53SK Stricks, W.; Kolthoff, I. Reactions between mercuric mercury and cysteine and glutathione. Apparent dissociation constants, heats and entropies of formation of various forms of mercuric mercapto-cysteine and glutathione. J. Am. Chem. Soc. 1953, 75, 5673–5681.
83DQ Dubey, K. P.; Qazi, M. A. Studies on the complexes of mer- cury (II) with L-2-amino-3-mercaptopropionic acid and thiomalic acid. Proc. Nat. Acad. Sci. India 1983, 53 (4), 342–346.
86S Shoukry, M.M. Acid-base equilibria of mercury(II) complexes of sulfhydryl compounds. Egypt J. Chem. 1986, 28 (5), 443–445.
11CCFGS Cardiano, P.; Cucinotta, D.; Foti, C.; Giuffre, O.; Sammartano, S. Potentiometric, Calorimetric, and 1H NMR Investigation on Hg2+-Mercaptocarboxylate Interaction in Aqueous Solution, J. Chem. Eng. Data, 2011, 56, 1995-2004.