PIGMENT BLUE 27/ HP BLUE 4693
PB27 (Pigment Blue 27 / Prussian Blue)
CAS No.: 14038-43-8 (anhydrous); 12240-15-2; 25869-00-5
Molecular formula: Fe₄[Fe(CN)₆]₃ · xH₂O (typically Fe₇(CN)₁₈)
Features: Deep dark blue shade with high tinting strength; good lightfastness and heat resistance; excellent solvent resistance; sensitive to strong alkalis; non-toxic.
Application: Widely used in paints, coatings, printing inks, artist colors, and plastics (PVC, LDPE, etc.); also used in magnetic recording materials and toners.
Description
Product Description – PB27
HP BLUE 4693 (PIGMENT BLUE 27) is an inorganic pigment primarily composed of iron(III) hexacyanoferrate(II). It is widely used in coatings due to its intense blue hue, good lightfastness, and chemical stability.
Technical Data:
| Product Information | ||||
| Chemical Type | CAS NO. | 12240-15-2 | ||
| C. I. Name | Pigment Blue 27 | EINECS / ELINCS NO. | 247-304-1 | |
| C. I. Constitution No. | 77510 | Chemical Formula | ||
| Technical Performance | ||||
| Full Shade | Tint | |||
| Weather Resistance | 5 | 5 | Heat Stability | 150°C |
| Light Fastness | 4-5 | 4-5 | ||
| Physical Properties | ||||
| Physical Form | Powder | Acid resistance | 4 | |
| Migration *l | 5 | Alkali Resistance | 1 | |
| Density g/l | 1.8 | |||
| Oil Absorption ml/100mg | Max 48 | |||
| PH value | 3.5 – 5.5 | |||
| Packaging | ||||
| 25kgs/bag 1000kgs/Pallet | ||||
| Storage | Shelf Life | 5 years | ||
| Should be stored in cool, dry and ventilate place. | ||||
| TRANSPORTATION | ||||
| Avoid inversion, sunlight, moisture and crash. Avoid damage the package. | ||||
- Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
- Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
- Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
- Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”
Disclaimer – The information given in this data sheet is based on the present state of our knowledge & is intended as a general description of our products & their possible applications. Due to the multitude of formulations, production & application conditions, all the above mentioned data have to be adjusted to the circumstances of the processor. No liabilities, including those for patent rights, can be derived from this fact for individual cases. It cannot be ruled out that this product contains particles < 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.
Why Choose Honor Pigments?
- 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
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- 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
- 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order
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