Oxygen determination according to Winkler: in alkaline solution
dissolved oxygen oxidises manganese(II) ions to higher-valent manganese hydroxides. In a strongly acidic medium these form manganese(III) ions which can be determined either titrimetrically or colorimetrically after addition of a colour reagent.
Data and ordering information
915 009 (915 209)
high sensitive titration kit (refill pack)
1 syringe is sufficient for the determination of 0.2 – 10.0 mg/l O2
1 gradation mark = 0.2 mg/l O2
100 tests with an average oxygen content of 9 mg/l
at least 18 months
Sea water suitability
Detectable with PF-11
The solubility of oxygen in water depends on the temperature, the pressure and the other components of the water. The oxygen content of a water at the time of sampling is often quoted as the percentage of the possible saturation.