CATHODIC POLARIZATION NATURE AT THE REHABILITATION OF CHROMATE-ANIONS FROM THE ALKALI SOLUTIONS

The influence of deployment rate of potential and temperature on kinetics of chromate-anions rehabilitation from alkali solutions has been retraced, has identified the nature of polarization in separate parts of cathodic process. It has been established that at the low value of potentials from -0,18 to – 0.26B the process is being determined by the electrochemical reaction, in the interval of potentials from – 0.26 to – 0.56B by the mixed kinetics and in the intenal from – 0.72 to – 1.16B the rate of cathodic process is limited by mixed and concentrated polarization.