The Weak Base node supports multiple dissociation steps, where the base of the last dissociation step is uncharged.

The species can be either Monoprotic, subject to one dissociation step only, or Polyprotic. For the latter case, any positive integer can define the Number of dissociation steps.

Note that the pKa refers to the acid constant of the conjugate acid of the weak base.

See also Species Nodes in the Aqueous Electrolyte Transport Interface and Diffusion and Migration Settings.