Donnan equilibrium
/ˈdɒnən/noun
mass noun
- Chemistry the equilibrium reached between two ionic solutions separated by a semipermeable membrane when one or more of the kinds of ion present cannot pass through the membrane. The result is a difference in osmotic pressure and electrical potential between the solutions.【化】唐南平衡。
词源
early 20th cent.: named after Frederick G. Donnan （1870-1956）， British physical chemist.