Quick and easy determination of free halogens

This test paper allows the quick and easy detection of free halogens (chlorine, bromine, iodine). Free nitrous acid HNO2 (not nitrite ions) interferes, but can be destroyed by addition of amidosulphuric acid.

Product data and ordering information
Type Qualitative test paper
Presentation Pack of 200 strips 20x70 mm
Color reaction   
pale-yellow → blue
Limit of sensitivity   
1 mg/l Cl2
REF 90603
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