In alkaline medium ammonium ions react with chlorine to form chloramine which in the presence of catalyst forms a blue coloured indophenol with phenols. (Reaction basis according to DIN 38406-E5)
Data and ordering information
REF
935 012
Type
colorimetric test kit
Range
0 · 0.2 · 0.5 · 1 · 2 · 3 mg/l NH4+
Sufficient for
50 determinations
Shelf life
at least 1.5 years
Sea water suitability
yes, after dilution 1+9
Detectable with PF-12
no
Ammonium ions occur primarily in domestic waste waters, but frequently also in industrial waste waters. In surface and ground waters ammonium ions indicate decomposition of animal or vegetable substances. Control of the ammonium values is therefore important to the water supply.
