Chloride Ion |
NO.221LL |
| Cl- |  |
 |
Performance
| Measuring Range | 10 to 200 mg/L |
| Sampling Time | 1 minutes |
| Detecting Limit | 3 mg/L |
| Colour Change | Brown → White |
| Reaction Principle | 2Cl- + Ag2CrO4 → 2AgCl + CrO42- |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity | Unnecessary |
| Store the tubes at cool and dark place. | |
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Changes colour by itself to |
| CN- | 10 mg/L | + | White ( 1mg/L) |
| Br- | 10 mg/L | + | White ( 10mg/L) |
| SCN- | 1 mg/L | + | White ( 100mg/L) |
| Fe2+ | 20 mg/L |  |
No ( 1000mg/L) |
| Fe3+ | 20 mg/L | + | White ( 20mg/L) |
| F- | 1000 mg/L | No | No( 1000mg/L) |
| I- | 20 mg/L | + | Pale yellow ( 20mg/L) |
| S2- | 3 mg/L | + | Blackish gray ( 3mg/L) |
| SO42- | 1000 mg/L | No | No ( 1000mg/L) |
