BASE IONIZATION CONSTANTS

Substance
Ionization
stage
pKOH
Ammonia
1
4,755
Aniline
1
9,37
Barium base
2
0,64
Benzidine
1
2
9,03
10,25
Benzylamine
1
4,67
Butylamine
1
3,22
Cadmium base
2
2,3
Calcium base
2
1,40
Carbamide
1
13,82
Chromium (III) base
3
9,99
Cobalt base
2
4,4
Copper base
2
6,47
Cyclohexilamine
1
3,34
Diethylamine
1
2,91
Dimethylamine
1
3,27
Diphenylamine
1
13,21
Ethanolamine
1
4,75
Ethylamine
1
3,19
Ethylenediamine
1
2
3,92
7,01
Guanidine
1
0,55
Hexamethylenediamine
1
2
2,9
4,0
Hydrazine
1
6,03
Hydroxylamine
1
8,05
Iron (II) base
2
3,89
Iron (III) base
2
3
10,74
11,87
Isoquinoline
1
8,62
Lanthanum base
3
3,3
Lead base
1
2
3,02
7,52
Lithium base
1
0,17
Magnesium base
2
2,6
Manganese base
2
3,3
Methylamine
1
3,34
Morpholine
1
5,67
1-Naphthylamine
1
10,08
2-Naphthylamine
1
9,89
Nickel base
2
4,6
8-Oxyquinoline
1
8,99
Phenylhydrazine
1
8,80
Piperazine
1
2
4,17
8,44
Piperidine
1
2,88
Potassium base
1
-0,46
Pyrazine
1
13,35
Pyridin
1
8,82
Pyrimidin
1
13,35
Pyrrolidine
1
2,73
Quinoline
1
9,13
Scandium base
3
9,12
Semicarbazide
1
10,57
Silver base
1
2,30
Sodium base
1
-0,77 - -0,18
Strontium base
2
0,82
Thallium base
1
<1
Thiocarbamide
1
11,97
m-Toluidine
1
9,27
o-Toluidine
1
9,55
p-Toluidine
1
8,92
Triethylamine
1
2,99
Trimethylamine
1
4,19
Urotropin
1
8,87
Zinc base
2
4,4