There is a transitional potential in nucleation frequency plots with increase of potential, when the concentration of Cl- is over 0.2 mol/L in NaHCO3 + Na2CO3 solutions.

• Cl-浓度的增加，对亚稳孔形核规律亦产生影响，当Cl-浓度超过一定值（如大于0.；2mol/L）时，随着电位升高，形核率变化出现转折电位。