The Use of Potassium Permanganate in the Disinfection of Water

and it loses oxygen rapidly in oxidizing organic matters. Moreover, it is costly to use. But it has got an important advantage and that is, it is a stable compound. Potassium permanganate is generally used by adding the chemical to the water in such an amount which will produce some pink colour. But the practical details of its use are different in different places in India. For example, in the Central Provinces, sufficient potassium permanganate is added to well waters which will retain a slight pink colour for at least half