In this research work, the transport properties of calcium ions (Ca2+) in a heterogeneous cation exchange membrane (IEM) MK-40 Schekinoazot. Aqueous solutions sodium chloride (NaCl) and (CaCl2) 0.01 M 0.02 concentration, respectively, were used. The limit current density numbers evaluated by means chronopotentiometry technique, applying electric pulses, obtaining potential differences, from whi...