Formula: Potassium ferricyanide [K₃Fe(CN)₆], potassium cyanide (KCN), potassium dihydrogen phosphate (KH₂PO₄) in water
CAS: Mixture
EC No.: Mixture
M (Molar Mass): Not applicable
D (Density): ~1.00 g/cm³
mp (Melting Point): Not applicable
bp (Boiling Point): Not applicable
Optical Rotation: Not applicable
Chemicals Properties
Composition (per liter):
Potassium ferricyanide: 200 mg
Potassium cyanide: 50 mg
Potassium dihydrogen phosphate: 140 mg
Non-ionic surfactant: 0.5 mL
Appearance: Clear, pale yellow solution
pH: 7.0 – 7.4
Sterility: Sterile-filtered (0.22 µm)
Hemoglobin Conversion: Converts all forms of hemoglobin to cyanmethemoglobin within 5 minutes
Absorbance (540 nm): Calibrated against hemoglobin standard
Stability: 1-2 years when stored properly, protected from light
Hazard Information
Hazard: TOXIC. Contains cyanide. Fatal if swallowed, in contact with skin, or if inhaled
Safety: EXTREME CAUTION. Use only with proper training. Wear protective gloves/eye protection/face protection. Use in fume hood. Have cyanide antidote kit available
Storage: Store in a cool, dark place in a tightly closed, labeled poison container. Store separately from acids
