Product Overview
Direct Black 19 (CAS 6428-31-1) is a versatile water-soluble anionic dye belonging to the trisazo chemical class. As a leading China manufacturer and supplier within the Dyestuffs and Pigments sector, Conscientia Industrial provides high-purity Direct Black 19 optimized for superior exhaustion and leveling properties. This high-performance dye is widely utilized in the textile industry for dyeing cotton, viscose, and wool, as well as in the manufacturing of leather, paper, and high-quality inkjet inks, ensuring deep black tones and excellent lightfastness for global industrial applications.
Technical Specifications
- Product Name: Direct Black 19
- CAS Number: 6428-31-1
- Purity (Strength): 100% – 200% (Standardization available)
- Molecular Formula: C34H30N13NaO7S2
- Molecular Weight: 819.81
- Appearance: Black uniform powder or grain
- Shade: Similar to standard (Greenish or Redish black available)
- Light Fastness: 4-5
- Solubility: Excellent solubility in water
- Country of Origin: China
Why Choose Conscientia Industrial
- Specialized Dye Synthesis: Expert in trisazo dye chemistry, ensuring high color strength and minimal batch-to-batch variation.
- Advanced Quality Control: Every batch of Direct Black 19 is rigorously tested for shade, strength, and solubility to meet international textile and industrial standards.
- Documentation and Compliance: We provide comprehensive technical dossiers, including Certificate of Analysis (COA), MSDS, and TDS (Technical Data Sheet).
- Scalable Industrial Supply: Reliable production capacity from our China facility to support large-scale textile mills and chemical distributors.
- As a leading China manufacturer, we provide Direct Black 19 CAS 6428-31-1 with factory-direct pricing.
Packaging & Storage
- Standard Packaging: 25kg iron drum, fiber drum, or woven bag with internal PE lining.
- Storage Conditions: Store in a cool, dry, and well-ventilated warehouse. Keep the container tightly sealed and away from moisture and direct sunlight.
- Safety Handling: Professional industrial dye. Wear protective equipment during handling to avoid inhalation and skin contact.
- Our logistics team ensures safe delivery of Direct Black 19 CAS 6428-31-1 by courier / air / sea.
Request a Quote & COA for Direct Black 19 CAS 6428-31-1 Today.
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