لطفا پس از پایان اعتبار قیمت با تلفن 88920648 تماس حاصل فرمائید
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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. | |
