
Potassium ferricyanide (chemical formula K₃[Fe(CN)₆], commonly known as potassium ferricyanide or potassium hexacyanoferrate(III)) is the potassium salt of ferricyanic acid, with a molecular weight of 329.24. which appears as deep red to red monoclinic prismatic crystals or powder at room temperature. It is characterized by low toxicity, high stability, and excellent redox properties. Its aqueous solution is yellow and exhibits yellow-green fluorescence. It is widely used in analytical chemistry, industrial production, photography, and materials science.
| Item | Specification |
| Melting point | Decomposition temperature > 300°C |
| Boiling Point | N/A |
| Density | N/A |
| Flash point | N/A |
| Vapor pressure | 0 Pa at 20°C |
| Water solubility | 464 g/L (20°C) |
| Solubility | Soluble in water and acetone; slightly soluble in alcohol; insoluble in methyl acetate and liquid ammonia. |
| Sensitivity | Photosensitive; aqueous solutions decompose easily upon exposure to light or alkali. |
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