Product Overview

Potassium Ferricyanide 98% Extra Pure (CAS No. 13746-66-2) is the tripotassium salt of the hexacyanoferrate(III) complex anion, commonly known as ferricyanide. The octahedral iron–cyanide complex undergoes well-defined reversible electron-transfer chemistry with ferrocyanide and functions as a moderate one-electron oxidant in numerous aqueous and laboratory systems. Its coordination chemistry also gives characteristic reactions with suitable metal ions and reducing species.

The Extra Pure grade is suited to general redox chemistry, inorganic synthesis, coordination studies and laboratory procedures requiring ferricyanide as an oxidising or complex-ion reagent.

Typical Applications

• Oxidising reagent in general aqueous and preparative redox chemistry.
• Electron-transfer and electrochemical investigations involving the ferricyanide/ferrocyanide couple.
• Preparation of hexacyanoferrate-containing inorganic and coordination systems.
• Formation and study of iron–cyanide pigments and related metal hexacyanoferrate materials.
• Oxidation of suitable organic or biochemical model compounds in research procedures.
• General reagent preparation for ferricyanide-based colour and redox reactions.

Common Synonyms

• Potassium hexacyanoferrate(III)
• Tripotassium hexacyanoferrate(III)
• Red prussiate of potash
• Potassium hexacyanidoferrate(III)

Storage Conditions

Keep well closed and protected from prolonged light and contamination to preserve the ferricyanide oxidation state and reagent consistency. Avoid introducing reducing contaminants during dispensing, since partial reduction to ferrocyanide would alter redox performance.