Acid Dissociation Constants (25°C) - Ars- Chemia [PDF]

Acid Dissociation Constants (25°C) Name Acetic Acetylsalicylic Adipic Arsenic Arsenous Ascorbic Benzoic Boric Butanoic Carbonic Chloroacetic Chlorous Citric Chromic Cyanic Formic Hydrazoic Hydrocyanic Hydrofluoric Hydrogen peroxide Hydrosulfuric acid Hydrotelluric acid Hypochlorous Iodic Lactic Maleic Malonic Nitrous Oxalic Paraperiodic acid Phenol Phosphoric Phosphorous Propanoic Pyrophosphoric Pyruvic Selenic Acid Selenous Sulfuric Sulfurous Tartaric Trichloroacetic Trifluoroacetic

Formula HC2H3O2 HC9H7O4 H2C6H8O4 H3AsO4 H3AsO3 HC6H7O6 HC7H5O2 H3BO3 HC4H7O2 H2CO3 HC2H2O2Cl HClO2 H3C6H5O7 H2CrO4 HCNO HCHO2 HN3 HCN HF H2O2 H2S H2Te HClO HIO3 HC3H5O3 H2C4H2O4 H2C3H2O4 HNO2 H2C2O4 H5IO6 HC6H5O H3PO4 H3PO3 HC3H5O2 H4P2O7 HC3H3O3 H2SeO4 H2SeO3 H2SO4 H2SO3 H2C4H4O6 HC2Cl3O2 HC2F3O2

Ka2

Ka1

Ka3

-5

1.8×10 -4 3.310 -5 3.910 -3 5.5×10 -10 5.110 -5 8.0×10 -5 6.5×10 -10 5.4×10 -5 1.510 -7 4.3×10 -3 1.410 -2 1.110 -4 7.4×10 -1 1.510 -4 2×10 -4 1.8×10 -5 2.510 -10 4.9×10 -4 3.5×10 -12 2.4×10 -8 8.9×10 23 2.3×10 -8 2.910 -1 1.7×10 -4 1.4×10 -2 1.2×10 -3 1.5×10 -4 4.5×10 -2 5.9×10 -2 2.8×10 -10 1.3×10 -3 7.5×10 -2 510 -5 1.3×10 -1 1.2×10 -3 4.110 Strong Acid -3 2.4×10 Strong Acid -2 1.6×10 -3 1.0×10 -1 2.2×10 -1 3.0×10

-6

3.910 -7 1.7×10

-12

5.1×10

-12

1.6×10

-11

5.6×10

-5

1.7×10 -7 3.210

-7

4.0×10

-19

1.×10 -11 1.6×10

-7

5.9×10 -6 2.0×10 -5

6.4×10 -9 5.3×10 6.2×10 -7 2.010

-8

4.2×10

-3

2.0×10

7.9×10

-2

2.2×10 -9 4.8×10 -2 1.2×10 -8 6.4×10 -5 4.6×10

-13

-7

Base Hydrolysis Constants (25°C) Name Ammonia Aniline Codeine Diethylamine Dimethlyamine Ethylamine Ethylenediamine Hydrazine Hydroxylamine Ketamine Methylamine Morphine Nicotine Piperidine Propylamine Pyridine Strychnine Triethylamine Trimethylamine Urea

Formula

Kb

NH3 C6H5NH2 C18H21NO3 (C2H5)2NH (CH3)2NH C2H5NH2 NH2C2H4NH2 H2NNH2 HONH2 C13H16ClNO CH3NH2 C17N19NO3 C10N14N2 C5H10NH C3H7NH2 C5H5N C21H22N2O2 (C2H5)3N (CH3)3N NH2CONH2

1.8×10 -10 4.3×10 -6 1.6×10 -4 6.9×10 -4 5.4×10 -4 6.4×10 -4 5.210 -6 1.3×10 -8 1.1×10 -7 3×10 -4 4.4×10 -6 1.6×10 -6 1.6×10 -3 1.33×10 -4 3.7×10 -9 1.7×10 -6 1.8×10 -4 5.6×10 -5 6.4×10 -14 1.510

-5