Under this condition of a "thick double layer", Hückel predicted the following relation for electrophoretic mobility: μ e = 2 ε r ε 0 ζ 3 η {\displaystyle \mu _{e}={\frac {2\varepsilon _{r}\varepsilon _{0}\zeta }{3\eta }}} .
Baixo esa condición dunha "dobre capa fina", Hückel prediciu a seguinte relación para a mobilidade electroforética: μ e = 2 ε r ε 0 ζ 3 η {\displaystyle \mu _{e}={\frac {2\varepsilon _{r}\varepsilon _{0}\zeta }{3\eta }}} .