Base

Ionization Equation

K_b

ammonia

NH₃ + H₂O ⇄ NH₄⁺ + OH^-

 1.8 x 10^-5

aniline

C₆H₅NH₂ + H₂O ⇄ C₆H₅NH₃⁺ + OH^-

 4.2 x 10^-10

dimethylamine

(CH₃)₂NH + H₂O ⇄ (CH₃)₂NH₂⁺ + OH^-

 7.4 x 10^-4

ethylamine

C₂H₅NH₂ + H₂O ⇄ C₂H₅NH₃⁺ + OH^-

 6.4 x 10^-4

ethylenediamine

(CH₂)₂(NH₂)₂ + H₂O ⇄ (CH₂)₂(NH₂)₂H⁺ + OH^-

 K_b1 = 8.5 x 10^-5

(CH₂)₂(NH₂)₂H⁺ + H₂O ⇄ (CH₂)₂(NH₂)₂H₂²⁺ + OH^-

 K_b2 = 2.7 x 10^-8

hydrazine

N₂H₄ + H₂O ⇄ N₂H₅⁺ + OH^-

 K_b1 = 8.5 x 10^-7

N₂H₅⁺ + H₂O ⇄ N₂H₆²⁺ + OH^-

 K_b2 = 8.9 x 10^-16

hydroxylamine

HONH₂ + H₂O ⇄ HONH₃⁺ + OH^-

 6.6 x 10^-9

methylamine

CH₃NH₂ + H₂O ⇄ CH₃NH₃⁺ + OH^-

 5.0 x 10^-4

pyridine

C₅H₅N + H₂O ⇄ C₅H₅NH⁺ + OH^-

 1.5 x 10^-9

trimethylamine

(CH₃)₃N + H₂O ⇄ (CH₃)₃NH⁺ + OH^-

 7.4 x 10^-5