Determination of Cl- ions: complexometric/colorimetric titration with Hg2+
Equipment and reagents
- Standard laboratory equipment, in particular: analytical scale, graduated burette, glassware, Pasteur pipettes, magnetic stirrer, magnetic stir bar.
- Bromophenol blue (pH indicator)
- Diphenylcarbazone
- Nitric acid solution at 0.5 mol/L and 0.05 mol/L
- Mercury solution at 0.0071 mol/L (i.e. 0.0142 N)