Determination of Chlorinity of Water without the Use of Chromate Indicator
Figure 1
(a) Titration curves for 25.0 mL of 0.10 M NaCl with 0.50 M AgNO3 in the presence of 1.3 mM phosphate at various starting pH values: (a) 7.9, (b) 7.0, (c) 6.0, and (d) 5.1. (b) Titration curves for 25.0 mL of 0.10 M NaCl with 0.50 M AgNO3 in the presence of various phosphate concentrations: (a) 0.05, (b) 0.20, (c) 2.0, and (d) 6.0 mM.