( Chemical Engineering : Adsorption and ion exchange )
This term is named for Irish chemist
Frederick Donnan (1870-1956)
Donnan uptake of electrolytes by the resin was observed.
The Donnan uptake of electrolyte into the membrane permits the diffusion of electrolyte through it.
The Donnan uptake is the uptake of an electrolyte as a neutral pair of ions during a sorption process.
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