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| Prussian blue | |
|---|---|
| IUPAC name | Iron(II,III) hexacyanoferrate(II,III) |
| Other names |
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| Identifiers | |
| CAS number | |
| PubChem | |
| EC number | 237-875-5 |
| ChEBI | CHEBI:30069 |
| SMILES | [Fe+3].[Fe+3].[Fe+3].[Fe+3].N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N.N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N.N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N |
| Gmelin Reference | 1093743 |
| Properties | |
| Molecular formula | C18Fe7N18 |
| Molar mass | 859.23 g mol-1 |
| Appearance | Blue opaque crystals |
| Pharmacology | |
| ATC code | |
| Oral | |
| Related compounds | |
| Other cations | Potassium ferrocyanide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Prussian blue | |
|---|---|
 Color coordinates | |
| Hex triplet | #003153 |
| sRGBB (r, g, b) | (0, 49, 83) |
| HSV (h, s, ) | (205°, 100%, 32%) |
| Source | |
| ISCC–NBS descriptor | Dark blue |
| B: Normalized to [0–255] (byte) | |
Prussian blue, also known as Berlin blue, is a dark blue color that is artificially made.
It is one of the first pigments made synthetically. It was accidentally found in 1704 by two chemists in Berlin.
The dark blue uniforms of the Prussian army were dyed this color.
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