T-753.01.032 [2024-08] Disinfectants containing hydrogen peroxide - potassium permanganate method

The disinfecting effect of hydrogen peroxide systems from its oxidative action which irreversibly destroys and kills the biological active systems of microorganisms.

 

Application/Purpose

Determination of hydrogen peroxide (H2O2) in disinfectants.

Scope of Application

Suitable for all solutions that contain hydrogen peroxide (H2O2) but do not contain any other peroxides.

Principle

The quantitative determination is carried out in a sulphuric acid solution by titration with potassium permanganate:

5 H202 +  2  KMnO4 + 3  H2S04    2 MnSO4 + H2S04 + 8 H20 + 5 02

If the sample contains other peroxide-containing disinfectants in addition to hydrogen peroxide (H2O2), the method T-754.01.032 Peracetic acid-based disinfectants must be used.

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