لطفا پس از پایان اعتبار قیمت با تلفن 88920648 تماس حاصل فرمائید
In acidic solution sulphanilic acid or
sulphanilamide are diazotised with nitrite. The diazonium salt is then
coupled with an aromatic amine, forming an intensely colored azo dye. |
Data and ordering information | |
REF | 935 066 |
Type | colorimetric test kit |
Range | 0.05 · 0.10 · 0.25 · 0.5 · 1.0 mg/L NO2- |
Sufficient for | 200 |
Shelf life | at least 1.5 years after production |
Sea water suitability | yes |
In surface waters nitrite ions are generally present in low concentrations. Their presence in ground water is less common. In waste waters nitrite frequently occurs, even in fairly high concentrations. |