ABSTRACT
Usually, 40V are chosen for a good chloride extraction progress under safe work conditions.
The migration of ions is a physical process which is forced along the field lines between the electrodes, indeed it can happen only within the capillary and shrinkage pores, which take other directions than the established field lines. Due to the different size, specific movability (Elsener 1990) and concentration of the dissolved ions they comprise varying percentages of the total ion movement. Practically, in the anion movement, the portion of chloride is largest at the beginning of the ECE and decreases over the duration of the treatment, whereas the portion of hydroxyl ion migration is increasing at the same time.
