Product codeC017 Cyanoline Blue
Chemical nameComposite preparation of monopyrazolone and bispyrazolone
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Cyanoline Blue is a mixture of monopyrazolone and bispyrazolone. It is used as a colorimetric reagent for CN- detection. The detection range of CN- by this method is 5 ppb to 10 ppm. The maximum wavelength is 620 nm. A ready-to-use solution can be prepared by dissolving 0.27 g Cyanoline Blue in 20 ml pyridine, followed by dilution with 100 ml of water. The solution is stable for one week at 4 oC. Cyanoline Blue is also used to detect SCN-, OCN-, NH3, and vitamin B12.
1) J. M. Kruse and M. G. Mellon, "Colorimetric Determination of Cyanide and Thiocyanate", Anal. Chem., 1953, 25, 446.
2) L. Prochazkova, "Spectrophotometric Determination of Ammonia as Rubazoic Acid with Bispyrazolone Reagent", Anal. Chem., 1964, 36, 865.
3) S. Baar, "The Micro Determination of Cyanide: Its Application to the Analysis of Whole Blood", Analyst, 1966, 91, 268
Handling and storage condition
|Appearance：||White to pale yellow powder|
|Solubility in Pyridine：||To pass test (clear, colorless or slightly yellow)|
|Sensitivity：||To pass test|