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HS Code |
661774 |
| Common Name | Direct Fast Black G |
| Chemical Class | Azo dye |
| Color Index Number | C.I. 22890 |
| Appearance | Black powder or granules |
| Solubility In Water | Soluble |
| Molecular Formula | C44H24N12Na6O17S6 |
| Usage | Textile dyeing (cotton, paper, leather) |
| Ph Of 1 Percent Solution | 6-8 |
| Light Fastness | Moderate |
| Melting Point | Decomposes |
| Cas Number | 1937-37-7 |
| Application Method | Direct (substantive dyeing) |
| Stability | Stable under normal conditions |
| Resistance To Washing | Moderate |
| Toxicity | Irritant, avoid inhalation and contact |
As an accredited Direct Fast Black G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Fast Black G is packaged in a 25 kg net weight fiber drum with a sealed inner plastic bag for moisture protection. |
| Shipping | Direct Fast Black G is shipped as a solid powder in sealed, moisture-proof, chemical-resistant packaging to prevent contamination and ensure safety. The product is labeled in accordance with hazardous material regulations. Transport is carried out by authorized carriers, following all applicable national and international guidelines for chemical handling and shipment. |
| Storage | Direct Fast Black G should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat, and incompatible substances such as strong oxidizers and acids. Keep the container tightly closed when not in use. Use appropriate, labeled containers to prevent contamination or spills, and ensure storage facilities comply with safety regulations to avoid environmental or health hazards. |
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Purity 98%: Direct Fast Black G with 98% purity is used in cotton textile dyeing, where it ensures deep, uniform black color with high wash fastness. Molecular weight 600 g/mol: Direct Fast Black G with a molecular weight of 600 g/mol is used in paper coloration, where it delivers consistent shade and improved penetration. Particle size D90 < 10 µm: Direct Fast Black G of particle size D90 less than 10 µm is used in ink formulations, where it provides smooth dispersion and sharp print quality. Stability temperature 120°C: Direct Fast Black G with a stability temperature of 120°C is used in viscose fiber dyeing, where it maintains color integrity during high-temperature processing. Water solubility 45 g/L at 25°C: Direct Fast Black G with water solubility of 45 g/L at 25°C is used in aqueous dye baths, where it enables high concentration solutions for deep shade achievement. Light fastness grade 4: Direct Fast Black G with light fastness grade 4 is used in garment manufacturing, where it offers moderate resistance to fading under sunlight. Melting point 230°C: Direct Fast Black G with a melting point of 230°C is used in nylon dyeing, where it remains thermally stable during hot melt processes. |
Competitive Direct Fast Black G 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!
