Potentiometric Determination of Chlorate Impurities in Hypochlorite Solutions

Figure 2

The dependence of the determined concentration of NaClO₃ in a standard solution on the concentration of HCl with the reaction time before titration of 4 min. The standard solution, mg/L: 30.0 (curve 1), 60.0 (curve 2), 120.0 (curve 3).