Helmholtz-Smoluchowski 1879/1903: electrophoretic mobility u = epsilon zeta / eta; zeta-potential at slip-plane characterizes colloidal stability; |zeta| > 30 mV typically stable.
Helmholtz-Smoluchowski 1879/1903: electrophoretic mobility u = epsilon zeta / eta; zeta-potential at slip-plane characterizes colloidal stability; |zeta| > 30 mV typically stable.