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HS Code |
447471 |
| Product Name | Acid Black WA |
| Chemical Class | Azo dye |
| Appearance | Black powder or granules |
| Solubility | Soluble in water |
| Cas Number | 5610-64-0 |
| Color Index Number | CI 20645 |
| Ph Of 1 Percent Solution | 2-4 |
| Molecular Formula | C20H13N5Na2O8S2 |
| Molecular Weight | 561.46 g/mol |
| Primary Application | Textile dyeing (wool, silk, nylon) |
| Ionic Nature | Anionic |
| Light Fastness | Moderate |
| Storage Conditions | Keep in cool, dry place |
| Toxicity | Harmful if swallowed |
As an accredited Acid Black WA factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Black WA is typically packaged in 25 kg woven plastic bags with an inner polyethylene liner for moisture protection and safe handling. |
| Shipping | Acid Black WA is typically shipped in tightly sealed, moisture-resistant bags or drums, each clearly labeled with hazard and handling information. Packages are transported in accordance with local and international regulations for chemical substances, ensuring protection from moisture, direct sunlight, and physical damage during transit to maintain product integrity and safety. |
| Storage | Acid Black WA should be stored in a tightly closed container in a cool, dry, well-ventilated area away from direct sunlight and incompatible materials such as strong oxidizing agents. The storage area should be equipped to contain spills, and personnel should avoid moisture exposure to prevent clumping or decomposition. Proper labeling and safe handling measures should be followed at all times. |
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Purity 98%: Acid Black WA with purity 98% is used in wool dyeing processes, where it delivers intense and uniform black coloration. Molecular weight 700 g/mol: Acid Black WA of molecular weight 700 g/mol is used in silk fabric dyeing, where it ensures deep penetration and fastness properties. Solubility 60 g/L at 25°C: Acid Black WA with solubility 60 g/L at 25°C is used in leather tanning, where it enables consistent dye dispersion and even coverage. pH stability 2.0–5.0: Acid Black WA with pH stability of 2.0–5.0 is used in acid dye baths, where it maintains color strength and prevents fading. Light fastness grade 4: Acid Black WA with light fastness grade 4 is used in nylon fiber dyeing, where it provides resistance to color degradation under light exposure. Particle size <10 µm: Acid Black WA of particle size less than 10 µm is used in paper coloration, where it results in smooth application and sharp color definition. Melting point 210°C: Acid Black WA with melting point 210°C is used in pigment manufacturing, where it assures thermal stability during process operations. |
Competitive Acid Black WA 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!
