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Potassium ferricyanide

CAS Number
13746-66-2
EC Number
237-323-3
Chemical Formula
C6FeN6.3K
Molecular Weight
329.24 g/mol

Description

Potassium ferricyanide (CAS 13746-66-2 ), also known commercially as red prussiate, is an oxidizing salt used across industrial processes requiring controlled redox reactions. Its selectivity as an oxidant makes it a reliable reagent in both manufacturing and laboratory-scale operations. In metal finishing and etching, it acts as a controlled oxidizing agent for blueprint development and photographic toning. These applications require precise image contrast and surface definition to ensure high-quality results in technical imaging. Textile and leather processors use it in discharge printing and bleaching operations to selectively remove color from dyed substrates. This process allows for intricate patterns without degrading the structural integrity of the base material. In mining and hydrometallurgy, it functions as a leaching or selective precipitation agent during precious metal recovery. This chemical property is essential for separating valuable minerals from complex ore matrices in industrial settings. Pharmaceutical and analytical laboratories rely on it as a reagent for colorimetric assays and as an oxidant in the synthesis of active intermediates. It is a staple in research environments where consistent chemical behavior is mandatory. Potassium ferricyanide is supplied as a crystalline powder or granules, typically in a bright red-orange form that aids visual quality verification. Technical grade is the standard commercial offering for large-scale industrial use. High-purity reagent and ACS grades are available for laboratory and pharmaceutical procurement channels. These grades ensure compliance with strict analytical standards required for sensitive chemical testing and synthesis. Bulk supply is common in 25 kg bags or fiber drums, with smaller packaging available for laboratory and specialty buyers. Proper storage in a cool, dry environment is recommended to maintain the stability of the crystalline structure. Contact us for supply of Potassium ferricyanide Request Quote

Other Names (Synonyms)

tripotassium hexacyanoferrate | red prussiate | K3[Fe(CN)6] | potassium hexacyanoferrate(3-) | Potassium ferricyanate | Potassium cyanoferrate | Iron potassium cyanide | Tripotassium ferriccyanide

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point°Cd ec.)
Density1.822 g/cm³
Appearanceorange to red crystals
ColorOrange to red
OdorOdorless
Formfine crystals
Water Solubility464 g/L (20 ºC)
Vapor Pressure0Pa at 20℃
pH6-9 (25℃, 1M in H2O)

Safety & Handling

Warning
GHS07· IrritantGHS08· Health HazardGHS09· Environment

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child
H411Toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28372000
UN Number3077
ADR Class9
Packing GroupIII
WGK (Germany)2