The Gibbs-Duhem type relation for ionic/nonionic mixed micelles - An alternative approach to Hall's method

► A derivation of the micellar Gibbs-Duhem relation for ionic/nonionic mixed micelles is presented. ► The result at constant temperature and pressure is similar as that proposed by D.G. Hall. ► The present approach without recourse to the Donnan equilibrium is simpler than that of Hall.