Potassium ferricyanide

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.