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HS Code |
561420 |
| Chemical Name | Direct Black D |
| Color Index Number | C.I. 30235 |
| Appearance | Black powder or granules |
| Solubility | Soluble in water |
| Molecular Formula | C34H24N8Na4O14S4 |
| Molecular Weight | 992.87 g/mol |
| Dye Class | Azo dye |
| Application | Textile dyeing (cotton and cellulosic fibers) |
| Light Fastness | Moderate |
| Cas Number | 6473-13-8 |
As an accredited Direct Black D factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Black D is packaged in a 25 kg woven polypropylene bag lined with polyethylene, clearly labeled with product and safety information. |
| Shipping | Direct Black D should be shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. It must comply with local regulations for handling and transport of dyes. Ensure labeling for hazard identification, and use appropriate personal protective equipment during handling. Store and transport in a well-ventilated, dry area. |
| Storage | Direct Black D should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from sources of heat, moisture, and incompatible substances such as strong oxidizers and acids. The storage area should be equipped with appropriate spill containment and clearly labeled. Personal protective equipment should be available to handle accidental spills or exposure. |
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Purity 98%: Direct Black D with purity 98% is used in textile fiber dyeing, where high purity ensures uniform and vibrant coloration. Molecular weight 600 g/mol: Direct Black D with molecular weight 600 g/mol is used in paper coating, where appropriate molecular size allows for excellent dispersion and color stability. Particle size 10 µm: Direct Black D with particle size 10 µm is used in ink formulation, where controlled particle size enhances print resolution and prevents nozzle clogging. Solubility 40 g/L at 25°C: Direct Black D with solubility 40 g/L at 25°C is used in aqueous dye baths, where high solubility enables rapid dissolution and effective fiber penetration. Stability temperature 120°C: Direct Black D with stability temperature 120°C is used in high-temperature dyeing processes, where thermal stability prevents color degradation during processing. pH stability range 5-9: Direct Black D with pH stability range 5-9 is used in leather dyeing applications, where stable color performance is maintained under varying bath conditions. Lightfastness grade 6: Direct Black D with lightfastness grade 6 is used in outdoor fabric dyeing, where superior lightfastness ensures prolonged color integrity under UV exposure. Moisture content <1%: Direct Black D with moisture content less than 1% is used in dry powder blends, where low moisture content supports consistent blending and shelf-life stability. Melting point 220°C: Direct Black D with melting point 220°C is used in polymer coloration, where high melting point compatibility avoids thermal decomposition during extrusion. Viscosity grade medium: Direct Black D with medium viscosity grade is used in water-based paints, where moderate viscosity allows for smooth application and even film formation. |
Competitive Direct Black D prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
Flexible payment, competitive price, premium service - Inquire now!
