Advantages of coulometric titrations

i)  Preparation, standardisation and storage of standard solutions are not essential in coulometric titrations.  This is meaningful especially for preparation of unstable reagents such as dipositive silver ions, tripositive manganese ions, titanium (III), bromine, chlorine, etc. that could be produced in situ, because the conventional analysis cannot handle these reagents.

ii) It is simple to handle small quantities of reagents through coulometric titrations.  Through proper choice of current, micro quantities of substance could be analyzed along with greater accuracy and ease.

iii) A single constant current source could be used to produce precipitating, complexing and redox reagents.

iv) Coulometric titrations could readily be adapted to automatic titrations as the current control is simply completed.

v)  A number of automatic coulometric titrators are readily available within the market to monitor environmental pollutant.

vi) Within chloride titrator silver (I)) ion is produced coulometrically.

vii) In sulphurdioxide monitors, anodically produced bromine oxidises the analyte to sulphate ions.

viii) In carbon dioxide monitors, in that the gas stream absorbed in monoethanolamine   is titrated along with coulometrically produced base.

ix) In water titrators - Karl Fischer reagent is produced electrolytically to determine trace level concentrations of water content /moisture.