Shandong Zhongyang Chemical Co., Ltd.
Pigment red 170
Classification :
PRODUCT DETAILS
Pigment Red 170 (PR170)
Synonyms: Naphthol Red, Permanent Red F3RK, Permanent Red F5RK, Permanent Red Brown HFMC.I. Number: 12475 CAS Number: 2786-76-7 EINECS Number: 220-509-3
Basic Information
Chemical Class: Monoazo organic pigment (Azo-S-derivative / Naphthol Red series)
Molecular Formula: C₂₆H₂₂N₄O₄
Molecular Weight: 454.48
Appearance: Bright red powder
Hue: Available in two crystal forms — F3RK (high opacity) is neutral / slightly yellowish red; F5RK (transparent) is bluish red, with a rich, highly saturated hue
Physical and Chemical Properties
Relative Density: 1.30–1.50
Average Particle Size: 200–300 nm
Specific Surface Area: 20–40 m²/g
Oil Absorption: 30–55 g/100 g
Solubility: Insoluble in water, ethanol, toluene, and most organic solvents
Chemical Properties:
Appears blue-red in concentrated sulfuric acid; forms a red precipitate upon dilution
Good acid and alkali resistance (Grade 4–5)
Melting point: approx. 315–325°C
Performance Characteristics
Tinting strength: High; the transparent type (F5RK) offers superior tinting strength
Lightfastness: F3RK (high opacity) – 7 on the natural color scale, 6 when diluted; F5RK (transparent) – 6 on the natural color scale, with excellent outdoor durability
Heat Resistance: Stable at 180–200°C; F5RK withstands 200°C for 10 minutes; suitable for conventional coatings, inks, and plastic processing
Solvent Resistance / Migration Resistance: F3RK exhibits greater solvent stability; prone to migration in soft PVC; suitable for hard PVC, PP, and PE
Dispersibility: Excellent; disperses easily in water-based, oil-based, and powder systems; good flow properties
Hiding Power / Transparency: F3RK offers high hiding power and is opaque; F5RK is semi-transparent to highly transparent
Major Applications
Coatings: F3RK is the primary choice, used in high-end industrial coatings, automotive coatings, powder coatings, and exterior wall coatings; can be blended with molybdenum-chromium orange and quinacridone pigments; good recoatability
Inks: F5RK is the primary choice, used in solvent-based gravure inks, water-based inks, and metallic decorative inks; offers high transparency and high tinting strength
Plastics: F3RK is suitable for coloring PP, PE, rigid PVC, and polyacrylonitrile pulp; use with caution on flexible PVC (prone to migration)
Other: Textile printing, wood staining, viscose fibers, and art and educational supplies (watercolors, oil paints)
Factory Description
Equipped with advanced equipment and precise detection technology, and supported by sufficient capital, the company provides customers with high-quality optical brighteners and pigment products, and customizes exclusive product solutions according to customer needs. Covering an area of more than 2,000 mu, the company has built a number of standardized production workshops and professional laboratories. Based on complete experimental facilities, it can provide customers with accurate application data support, and ensure stable goods supply with large-scale production capacity.
Our Advantages
1. With our own manufacturing facilities, R&D center, and laboratories, we ensure consistent and reliable quality for products including optical brightening agents, titanium dioxide, solvent dyes, and pigments.
2. We provide OBA products and comprehensive whitening solutions with full technical support throughout the process.
3. Factory direct sales offer prices 3%-5% lower than market rates.
4. Rapid delivery with same-day shipping available.
5. Custom packaging options for optical brighteners, titanium dioxide, solvent dyes, pigments, and more based on client requirements.
6. Complimentary samples provided for testing comparative effects and cost-effectiveness.
7. Prompt response to inquiries with professional and efficient service.
8. Flexible payment options including TT, LC, and other settlement methods.
9. Complete customs clearance documentation backed by years of export experience.
10. DDP door-to-door service with real-time tracking of logistics updates.
Package information
Standard packaging is 25 kg in cardboard drums, cartons, or bags lined with double-layer PE film. Customized packaging is also available upon customer request.
Transportation and storage
Transportation: Fluorescent whitening agents should be protected from impact and direct sunlight during transportation.
Storage: Store in a cool, dry, and well-ventilated warehouse. Shelf life is two years.
FAQ
Q: Are your products suitable for use in synthetic fibers, plastics, detergents, coatings, inks, textiles, and paper?
Q: How about after-sales service?
Q: What documents can you provide?
Q: Can you ship to Southeast Asia and Africa?
Q: Which ports do you ship from?
Q: How long is the lead time?
Q: What payment terms do you accept？
Q: What is your standard packaging?
Q: Can you provide samples?
Q: What is your MOQ?
Q: Are prices negotiable?
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Qihe Economic Development Zone (Industrial Park), Shandong Province