PIGMENT BLUE 27/ HP BLUE 4693
Other Inorganic Pigments
Technical Information
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.
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”
Technical Note — The data and recommendations provided are based on HONOR Pigment’s internal testing and manufacturing experience. They are offered in good faith to assist customers in evaluating product suitability for their specific applications. As processing conditions, formulations, and end-use requirements vary widely, customers should conduct their own validation under actual use conditions. HONOR Pigment makes no warranties, express or implied, regarding the accuracy of this information or its fitness for any particular purpose. Nothing herein shall be construed as a license or recommendation to infringe any patent. HONOR Pigment’s standard terms and conditions of sale apply.oduct 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
- ✅ Strict Quality Control — ISO 9001 certified with batch-to-batch consistency and zero-defect policy
- 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
- 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order
📩 Need more details?
Request TDS, SDS, or a free sample for testing.
Frequently Asked Questions — PIGMENT BLUE 27
What is PIGMENT BLUE 27 used for?
PIGMENT BLUE 27 (Pigment BLUE 27) is an organic pigment supplied by Honor Pigments for printing inks, industrial coatings, plastics masterbatch, and textile printing. ISO 9001 certified quality with batch-to-batch consistency.
Is PIGMENT BLUE 27 suitable for water-based applications?
Yes. PIGMENT BLUE 27 can be formulated for water-based ink and coating systems when combined with proper dispersing and wetting agents. Contact Honor Pigments for application-specific grade recommendations.
What technical data is available for PIGMENT BLUE 27?
Full technical datasheets including heat resistance, light fastness, oil absorption, density, pH value, and particle size distribution are available upon request. Honor Pigments maintains 3-year batch records for QC traceability.
How does Honor Pigments ensure batch consistency for PIGMENT BLUE 27?
Every batch undergoes color strength, shade, dispersibility, and particle size testing against internal standards. Results are documented per ISO 9001 procedures and available with each shipment.