Potassium ferricyanide is a red crystalline inorganic compound represented by the formula K₃[Fe(CN)₆]. It is soluble in water and its aqueous solution can exhibit green-yellow fluorescence. The compound is also sensitive to light and has useful oxidizing properties. It is mainly used as an analytical and oxidizing reagent by established applications in laboratory analysis, electrochemistry and biological sample preparation.
CAS No.: 13746-66-2
Synonyms: Red prussiate, potassium ferricyanate, tripotassium hexacyanoferrate, Potassium cyanoferrate, Iron potassium cyanide.
| Physical Properties | |
| Chemical formula | K3[Fe(CN)6] |
| IUPAC Name | Potassium hexacyanoferrate(III) |
| Molecular weight | 329.24 g/mol |
| Solubility | Soluble in water |
| Density | 1.89 g/cm3 |
| Appearance | Light yellow, crystalline granules |
| Chemical Properties | |
| Color | Ruby red |
| Physical State | Solid |
| Melting Point | 300 °C |
| Ph Value | 6-9 at 329 g/l at 25 °C |
| Odor | Odorless |
| Pictograms : |   |
| Hazard Statements : | H319: Causes serious eye irritation. H411: Toxic to aquatic life with long-lasting effects. |
| Precautionary Statements: | P264: Wash skin thoroughly after handling. P273: Avoid release to the environment. P280: Wear eye protection/ face protection. Response: P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337 + P313: If eye irritation persists: Get medical advice/ attention. P391: Collect spillage. |
Potassium ferricyanide is a red crystalline inorganic compound represented by the formula K₃[Fe(CN)₆]. It is soluble in water and its aqueous solution can exhibit green-yellow fluorescence. The compound is also sensitive to light and has useful oxidizing properties. It is mainly used as an analytical and oxidizing reagent by established applications in laboratory analysis, electrochemistry and biological sample preparation.
CAS No.: 13746-66-2
Synonyms: Red prussiate, potassium ferricyanate, tripotassium hexacyanoferrate, Potassium cyanoferrate, Iron potassium cyanide.
| Physical Properties | |
| Chemical formula | K3[Fe(CN)6] |
| IUPAC Name | Potassium hexacyanoferrate(III) |
| Molecular weight | 329.24 g/mol |
| Solubility | Soluble in water |
| Density | 1.89 g/cm3 |
| Appearance | Light yellow, crystalline granules |
| Chemical Properties | |
| Color | Ruby red |
| Physical State | Solid |
| Melting Point | 300 °C |
| Ph Value | 6-9 at 329 g/l at 25 °C |
| Odor | Odorless |
| Pictograms : | |
| Hazard Statements : | H319: Causes serious eye irritation. H411: Toxic to aquatic life with long-lasting effects. |
| Precautionary Statements: | P264: Wash skin thoroughly after handling. P273: Avoid release to the environment. P280: Wear eye protection/ face protection. Response: P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337 + P313: If eye irritation persists: Get medical advice/ attention. P391: Collect spillage. |
Potassium Ferricyanide is widely used in cyanotype photography and blueprint processes for producing Prussian blue pigment. It also serves as a mild oxidizing agent in laboratory reactions and organic synthesis with additional applications in metal hardening and electroplating.
Potassium Ferricyanide is also known as potassium hexacyanoferrate(III). Its chemical formula is K₃[Fe(CN)₆] which is three potassium ions associated with one ferricyanide complex ion.
Potassium ferricyanide contains iron in the +3 oxidation state (Fe³⁺) and is usually bright red. While Potassium ferrocyanide contains Fe²⁺ and is normally yellow. Both are stable coordination compounds with cyanide groups strongly attached to iron.
