Oxidation - Reduction Titrations (Redox titrations):

The oxidizing regents like as iodine, bromine, chlorine, Ce⁴⁺ and the unusual oxidation states of many ions such as Ag²⁺ , Mn³⁺ and U⁴⁺ can be produced through making use of coulometric methods and  Table 6.7 lists a few of the applications of these regents.

Coulometric titrations of redox titrations suppose importance since of the possibility of insitu generation of unusual/unstable regents like as bromine, dipositive silver ions, tri-positive manganese ions, and many more. Conventional volumetric analysis cannot handle/prepare for these reagents. An Electrogenerated bromine has been proved to be extremely useful for the determination of aniline, phenol, mustard gas, As(III), Sb(III), etc.

A bromine solution is rather unstable and cannot be used as titrant in conventional volumetry and thus one has to use a Winkler's solution (bromate-bromide mixture) to carry out reactions including bromine.