Iron Blue PB 27 (Milori Blue / Prussian Blue)
CAS 14038-43-8
In StockMOQ
25 kg
Lead Time
7–14 days
Packaging
25 kg bags
Specifications
| Density | 1.8–1.9 g/cm³ |
| Appearance | deep blue powder |
| Color Index | PB 27 |
| Lightfastness | 7 (ISO 105-B02) |
| Oil Absorption | 40–70 g/100g |
| Acid Resistance | good (pH <7) |
| Alkali Resistance | poor (decomposes above pH 7) |
| Chemical Composition | Fe₄[Fe(CN)₆]₃ |
FAQ
PB 27 decomposes in alkaline media (pH >7), releasing iron ions and turning brown. It is restricted to acid and neutral pH systems such as oil-based paints, nitrocellulose lacquers and acid-thinned primers.
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