Potassium hexacyanoferrate(III) ≥99%, dark red-orange crystalline powder ACS

Supplier: MP BIOMEDICALS (FKA ICN BIOMED

Synonyms: Potassium ferricyanide(III), Tripotassium hexacyanoferrate, Potassium ferricyanide

0215255980 0215255990
IC15255980EA 89.45 USD
IC15255980 IC15255990
Potassium hexacyanoferrate(III) ≥99%, dark red-orange crystalline powder ACS
Potassium hexacyanoferrate (III)

Potassium ferricyanide is the chemical compound with the formula K3[Fe(CN)6]. This bright red salt contains the octahedrally coordinated [Fe(CN)6]3- ion. It is soluble in water and its solution shows some green-yellow fluorescence.


  • Auto Ignition: > 100 °C (Lit.)
  • Vapor Pressure: ca. .000001 hPa at 25 °C (Lit.)


Potassium ferricyanide is used as an oxidizing agent to remove silver from negatives and positives, a process called dot etching.


Solubility (10% soln): Yellow with no trace of green or brown


Potassium ferricyanide is used as an oxidizing agent to remove silver from negatives and positives, a process called dot etching.


Caution: Research Use Only (RUO).

Formula: K₃Fe(CN)₆
MW: 329.25 g/mol
Boiling Pt: 2735 °C (1013 hPa) (lit.)
Melting Pt: 1539 °C (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00011392
CAS Number: 13746-66-2

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Specification Test Results

Identity Test Passes
Purity ≥99%
FTIR Conforms to Standard
Insoluble Matter ≤0.005%
Chloride (Cl) ≤0.01%
Sulfates (SO42-) ≤0.01%
Ferro Compounds ≤0.05%

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