Base Dissociation Constants in Water at 298 K

Compound	Kb	Compound	Kb
NH3	1.8 · 10-5	C6H5NH2	3.8 · 10-10
CH3NH2	3.7 · 10-4	C6H5N(CH3)2	1.0 · 10-9
(CH3)2NH	5.4 · 10-4	o-FC6H4NH2	1.6 · 10-11
(CH3)3N	6.5 · 10-5	m-FC6H4NH2	2.5 · 10-11
C2H5NH2	5.6 · 10-4	p-FC6H4NH2	4.5 · 10-10
(C2H5)2NH	1.3 · 10-3	o-NO2C6H4NH2	2.0 · 10-14
(C2H5)3N	4.0 · 10-4	m-NO2C6H4NH2	2.5 · 10-12
C6H5CH2NH2	2.0 · 10-5	p-CH3C6H4NH2	1.0 · 10-9
PH3	1.0 · 10-26	p-CH3OC6H4NH2	2.2 · 10-9
(C2H5)3P	5.0 · 10-8	pyridine	1.4 · 10-9
(C2H5)3As	5.0 · 10-12	CH3CONH2	3.1 · 10-15
H2NNH2	1.0 · 10-6	H2NOH	1.1 · 10-8