Pigment red 49:1
Classification :
PRODUCT DETAILS
Pigment Red 49:1
Synonyms: Lithol Red R, Lithol Red 105, Lithol Red 1301
C.I. No.: 15630:1
CAS No.: 1103-38-4
Basic Information
Chemical Class: Monoazo lake organic pigment (β-naphthol lake)
Molecular Formula: C₄₀H₂₆BaN₄O₈S₂
Molecular Weight: 892.11
Appearance: Bright, reddish-orange powder
Hue: Neutral red with a slight yellowish tint; rich and vivid color
Physical and Chemical Properties
Relative Density: 1.48–1.90
Average Particle Size: 100–200 nm (0.10–0.20 μm)
Specific Surface Area: 30–67 m²/g
Oil Absorption: 30–75 g/100 g
pH (10% slurry): 7.7–8.7
Solubility: Insoluble in water; slightly soluble in ethanol, acetone, and hot water
Chemical Properties:
Appears reddish-purple in concentrated sulfuric acid; forms a reddish-brown precipitate upon dilution
Forms a reddish-brown solution when mixed with concentrated nitric acid
Slightly soluble in sodium hydroxide solution
Hiding Power: Semi-transparent
Performance Characteristics
Tinting strength: High; excellent tinting intensity; economical red pigment
Lightfastness: Standard shade 3, diluted shade 2–3; moderate lightfastness
Heat Resistance: 160–180°C; stable in conventional ink/coating processing; insufficient heat resistance in plastics
Solvent Resistance / Migration Resistance: Moderate resistance to ethanol, ethyl acetate, toluene, etc.
Acid and Alkali Resistance: Acid resistance Grade 4, alkali resistance Grade 4; good chemical stability
Dispersibility: Excellent; easily dispersible in inks, water-based systems, and coatings
Main Applications
Inks: Primary application; offset printing, gravure printing, water-based inks, and publishing inks; produces vivid colors
Stationery and Educational Supplies: Watercolors, oil paints, crayons, and markers
Coatings: Interior wall paints, industrial coatings, and general-purpose industrial paints
Rubber / Leather: Rubber coloring and synthetic leather color pastes
Plastics: Limited use; suitable only for plastics with low heat resistance requirements; prone to migration

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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