Potentiometric Determination of Chlorate Impurities in Hypochlorite Solutions

Table 3

The results of the determination of sodium hypochlorite and sodium chlorate (N = 5, P = 0.95).

NaClO solution	(NaClO),	, %	(NaClO3), mg/L		, %
	mg/L		Standard addition	Result of analysis
Initial solution	1025.0±4.6	0.51	30.0	27.7±1.4	5.8
Initial solution; 2-fold diluted with distilled water	508.9±4.3	0.96	15.0	14.1±1.3	10.5