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Titration/analysis for determination of hydrogen peroxide concentration
Q. I need the procedure of titration to analyse the concentration of hydrogen peroxide in my sample.
- Panali, Goa, India
October 24, 2012
A. Sir:
If there is nothing else present in your hydrogen peroxide solution, then the density of the solution can be used to find the concentration. For example, a density of about 13 degrees baumé equals about 35% H2O2. A density table and hydrogen peroxide concentration can be found in the Chemistry Physics handbook or likely on the internet.
Regards,
Galvanizing Consultant - Hot Springs, South Dakota, USA
A. The usual method of analysis is by titration with potassium permanganate [on
eBay or
Amazon] in dilute sulfuric acid medium.
The peroxide reduces (decolorises) the pink color of the permanganate and you titrate till there is a permanent slight pink colour.
To find a factor it would be best to make up a standard solution of peroxide in roughly the same concentration as your unknown sample.
It can also be analysed iodometrically, and colormetrically.
Geoffrey Whitelaw
- Port Melbourne, Australia
December 3, 2012
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