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HS Code |
530234 |
| Chemical Name | Direct Fast Black |
| Cas Number | 6473-13-8 |
| Color Index | C.I. Direct Black 17 |
| Appearance | Black powder or granules |
| Solubility | Soluble in water |
| Molecular Formula | C34H22N6Na2O8S2 |
| Usage | Textile dyeing |
| Melting Point | Decomposes |
| Ph Value | 6-8 (1% solution) |
| Stability | Stable under normal conditions |
As an accredited Direct Fast Black factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for Direct Fast Black features a sturdy 25kg woven bag, clearly labeled with the chemical name, batch number, and safety instructions. |
| Shipping | Direct Fast Black should be shipped in tightly sealed, labeled containers. Keep away from moisture and incompatible materials. Store and transport in a cool, well-ventilated place, complying with local and international regulations. Handle with care to avoid spillage, and use appropriate protective equipment. Consult the relevant SDS for additional shipping instructions. |
| Storage | Direct Fast Black should be stored in a cool, dry, well-ventilated area, tightly sealed in its original, properly labeled container. Keep it away from incompatible substances such as strong oxidizers and acids. Protect the chemical from moisture, heat, and direct sunlight. Always ensure storage areas are equipped to prevent environmental contamination and access is restricted to trained personnel. |
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Purity 98%: Direct Fast Black with 98% purity is used in cotton fabric dyeing, where high purity ensures deep and uniform black coloration. Solubility 50 g/L: Direct Fast Black with 50 g/L aqueous solubility is used in viscose rayon processing, where excellent solubility results in fast and homogeneous dye uptake. Lightfastness Grade 6: Direct Fast Black with lightfastness grade 6 is used in textile printing applications, where superior lightfastness preserves color intensity under sunlight exposure. pH Stability 5–10: Direct Fast Black stable between pH 5–10 is applied in cellulose fiber dyeing, where wide pH stability range prevents color shifts during processing. Particle Size D90 ≤ 10 μm: Direct Fast Black with D90 particle size ≤ 10 μm is used in paper coating formulations, where fine particle size allows for smooth and even color deposition. Heat Stability up to 150°C: Direct Fast Black with heat stability up to 150°C is used in high-temperature padding processes, where retained dye integrity yields consistent dye performance. Moisture Content ≤ 3%: Direct Fast Black with moisture content ≤ 3% is used in powder pigment formulations, where low moisture minimizes clumping and improves dispersion. Sodium Sulfate Content ≤ 0.5%: Direct Fast Black with sodium sulfate content ≤ 0.5% is applied in yarn dyeing, where reduced salt content prevents unwanted precipitation and enhances dye uniformity. |
Competitive Direct Fast Black 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!
