Visocolor Ammonium – colorimetric ammonia test kit



Colorimetric determination of ammonium

Monochloramine is derived from ammonium ions as a result of the effect of chlorine in the alkaline range. Combined with thymol, this forms a blue indophenol dye. (Reaction principle analogous to APHA 4500-NH3, ISO 7150-1 & DIN 38406)

Data and ordering information (920-006)

Cat No. 920 006
Type high sensitive test kit
Range 0.0 - 0.02 - 0.04 - 0.07 - 0.10 - 0.15 - 0.20 - 0.30 - 0.40 - 0.50 mg/l NH4+
Sufficient for 110 determinations
Shelf life at least 12 months
Sea water suitability no
Detectable with PF-11 no


920-006) 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.

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