CAS 83524-75-8 | Pigment Black 32 | Infrared Reflective Perylene Pigment for Coatings | China Manufacturer
Product Name: Pigment Black 32
Synonym: C.I. 71133, Perylene Black
CAS Number: 83524-75-8
Heat Resistance: 280°C
Lightfastness: 8
pH Value: 6-7
Oil Absorption: 35±5%
Purity: ≥ 98%
Appearance: Black powder with green light
Packaging: 50g / 100g / 250g / 500g / 1kg / bulk (custom available)
Lead Time: 3-7 business days from stock
Made in China | COA & SDS provided with every shipment
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
CAS 83524-75-8 | Pigment Black 32 | Infrared Reflective Perylene Pigment for Coatings | China Manufacturer
|
🔥 Heat Resistance
280°C
High thermal stability
|
☀️ Lightfastness
8
Excellent outdoor durability
|
🧪 pH Value
6-7
Near neutral
|
💧 Oil Absorption
35±5%
Typical value
|
Product Overview
Pigment Black 32 (CAS 83524-75-8) is a high-performance perylene-based organic pigment manufactured by Alfa Chemical in China. It delivers a deep, jet-black shade with excellent lightfastness and heat stability. Unlike conventional carbon black (Pigment Black 7), this NIR-reflective colorant is engineered to reflect near-infrared radiation while maintaining strong opacity in the visible spectrum, making it a preferred choice for cool coatings that require effective heat management.
Produced in China by Alfa Chemical, this pigment is supplied as a black powder with a green undertone. It exhibits a purity of ≥ 98%, a heat resistance of 280°C, and a lightfastness rating of 8. Its near-neutral pH (6-7) and controlled oil absorption (35±5%) ensure compatibility with a wide range of resin systems, including acrylic, alkyd, and polyester coatings.
The pigment is widely used in photovoltaic backsheets, lithium battery electrode coatings, automotive topcoats, and infrared-reflective architectural paints. Its unique combination of high blackness and NIR transparency helps reduce heat buildup in dark-colored surfaces, improving durability and energy efficiency. For similar organic pigments and specialty chemicals, explore our related product range.
Key Features
Reflects near-infrared radiation while maintaining deep black shade, ideal for cool coatings and heat-sensitive substrates.
Withstands high processing temperatures without color shift, suitable for engineering plastics and coil coatings.
Excellent outdoor durability, resistant to fading and chalking in automotive and architectural applications.
Organic pigment with high tinting strength and good pigment dispersion. Heavy-metal-free alternative to inorganic black pigments.
Applications
Solar panel backsheets need to be dark for aesthetic reasons, but conventional black pigments absorb NIR radiation and cause overheating, reducing panel efficiency.
✅ Solution: Pigment Black 32 for NIR-reflective backsheets
This pigment reflects NIR radiation while maintaining a deep black appearance, helping to lower operating temperatures and improve photovoltaic module efficiency.
Request technical data →Battery manufacturers need electrode coatings that maintain electrical conductivity and adhesion over repeated charge-discharge cycles.
✅ Solution: Pigment Black 32 for durable electrode coatings
The pigment's high chemical stability and heat resistance make it suitable for lithium battery electrode formulations, contributing to electrode longevity and stable performance.
Get formulation advice →Automotive topcoats need to maintain gloss and color depth while resisting UV degradation and heat buildup.
✅ Solution: Pigment Black 32 for automotive topcoats and IR-reflective paints
Offers lightfastness grade 8 and heat resistance at 280°C, ideal for automotive finishes, colorant for plastics, and infrared-reflective paints that reduce surface temperature.
Request a sample →Anti-counterfeiting and camouflage coatings require pigments with precise NIR absorption or reflection profiles for authentication and detection.
✅ Solution: Pigment Black 32 for security inks
Its tunable NIR reflectance enables covert marking and machine-readable authentication in security printing and camouflage systems.
Request a quote →Product Specifications
Detailed specifications for Pigment Black 32 (CAS 83524-75-8) are listed below. For batch-specific COA or SDS, please contact us.
| Item | Specification |
|---|---|
| Product Name | Pigment Black 32 |
| Synonym | C.I. 71133; Perylene Black; Black L-0086 |
| CAS Number | 83524-75-8 |
| EINECS Number | 280-472-4 |
| Molecular Formula | C₄₀H₂₆N₂O₆ |
| Molecular Weight | 630.64 g/mol |
| C.I. Number | 71133 |
| Appearance | Black powder with green light |
| Purity | ≥ 98% |
| Heat Resistance | 280°C |
| Lightfastness | 8 |
| pH Value | 6-7 |
| Oil Absorption | 35±5% |
| Moisture | ≤ 0.5% |
| Density | 1.48 g/cm³ |
| Packaging Options | 50g / 100g / 250g / 500g / 1kg / bulk, custom available |
| Documents | COA, SDS |
Every shipment includes COA and SDS. Click below to request batch-specific documents or technical data for this pigment:
Manufacturing & Quality Control
This perylene pigment is manufactured at Alfa Chemical's dedicated organic pigment facility in China. The production process is designed to control particle size distribution, ensure consistent color strength, and minimize residual impurities. Each batch is tested for heat resistance, lightfastness, pH, oil absorption, and moisture content, with results documented in a batch-specific Certificate of Analysis.
The product is compliant with relevant industry standards and is supplied with a Safety Data Sheet. For custom specifications or additional testing requirements, contact our technical team.
Packaging & Shipping
Standard packaging is 50g, 100g, 250g, 500g, 1kg, or bulk quantities in fiber drums. Custom packaging formats are available on request. Because the pigment is sensitive to moisture, all shipments are packed in moisture-barrier bags or lined drums and stored in a cool, dry environment prior to dispatch.
Delivery is typically 3-7 business days after order confirmation for stock items. International courier, air freight, and sea freight options are available depending on order size and destination. For special packaging or urgent requests, contact us directly.
Why Choose Alfa Chemical
- Organic pigment expertise: Our team specializes in high-performance perylene and azo pigments for coatings, plastics, and inks.
- Batch-to-batch consistency: Each batch is tested for color strength, heat resistance, and lightfastness, with a COA provided for traceability.
- NIR-reflective pigment focus: We understand the technical requirements of cool coatings and photovoltaic backsheet applications.
- R&D to production scale: Supply from 50g sample quantities to ton-scale bulk orders, with custom packaging available.
- China manufacturing base: Direct production in China supports competitive pricing and reliable lead times.
Explore more organic chemistry products or contact us for custom requirements.
Frequently Asked Questions
It is used in photovoltaic backsheets, lithium battery electrode coatings, automotive topcoats, infrared-reflective architectural paints, and security inks.
Unlike carbon black, this organic pigment reflects near-infrared radiation while maintaining a deep black shade, making it suitable for cool coatings and heat-sensitive substrates.
The heat resistance is 280°C, suitable for engineering plastics and coil coating applications.
Yes, it has a lightfastness rating of 8, providing excellent outdoor durability for automotive and architectural coatings.
Yes, a COA and SDS are provided with every shipment. Batch-specific documents are available upon request.
Standard MOQ is 50g for R&D samples. Contact us for bulk quantities.
Related products & resources:
* All product specifications are for reference purposes. Users should conduct their own suitability tests under actual conditions. This product is for industrial use only. Not for food, pharmaceutical, or cosmetic applications without specific regulatory compliance testing.
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