氯离子检测管 Cl- NO.221LL

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 Change 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 (1000 mg/L) 
Fe3+ 20 mg/L + White(20mg/L) 
F- 1000mg/L No No (1000 mg/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) 
 
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