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Cyanide refers to all of the CN groups in cyanide-compounds that can be determined as the cyanide ion CN—. In most natural waters the molecular HCN form predominates. In solutions of metal cyanides, the CN group may also be present as a complex of varying stability. Cyanides are extensively used for extraction of silver/gold ores, metal-cleaning and electroplating baths, coke ovens and other chemical processes. There are mainly two chemical treatments to remove cyanides from waste-waters: one is chlorination and the other is the alkaline method.
Cyanides react with the pyridine-pyrazolone reagent to form a blue complex in neutral buffered solution. The absorbance of this colored product is proportional to the concentration of cyanide present in the aqueous sample.
Order Information:
HI 3855 test kit comes with 17 g cyanide reagent A, 100 packets cyanide reagent B, 100 packets cyanide reagent C, checker disc, glass vials with caps, 3 mL plastic pipette and spoon.
Product Manuals
Manual: Download
Specification :
| Method | Checker Disc | |
| Range | 0.00-0.30 mg/L | |
| Smallest Increment | 0.01 mg/L | |
| Chemical Method | Pyride-pyrazolone | |
| Number of Tests | 100 | |
| Weight | 580 g |
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