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HS Code |
947610 |
| Name | Acid Blue 221 |
| Cas Number | 37201-43-7 |
| Molecular Formula | C23H21N3Na2O9S2 |
| Molecular Weight | 589.54 g/mol |
| Appearance | Blue powder |
| Solubility | Soluble in water |
| Ci Number | C.I. 18055 |
| Dye Class | Acid dye |
| Application | Textile industry, wool, silk |
| Maximum Absorption Wavelength | 601 nm |
| Ph Range For Application | 2-5 |
| Synonyms | Acid Blue 221, Wool Blue 5R |
As an accredited Acid Blue 221 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Blue 221 is supplied in a sealed, labeled 500-gram plastic container with hazard symbols and safety instructions clearly displayed. |
| Shipping | Acid Blue 221 should be shipped in tightly sealed containers made of compatible materials, protected from moisture, heat, and direct sunlight. During transit, ensure it remains upright and secure to prevent spills. Follow all applicable regulations for transport of chemicals, including proper labeling, documentation, and safety data sheets. |
| Storage | **Acid Blue 221** should be stored in a tightly-sealed container, away from direct sunlight, heat, and moisture. Keep it in a cool, dry, and well-ventilated area, separated from incompatible materials such as strong oxidizing agents. Ensure proper labeling and restrict access to authorized personnel. Always use suitable protective equipment when handling and store according to local regulations. |
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Purity 98%: Acid Blue 221 with purity 98% is used in textile fiber dyeing, where it ensures uniform and vivid color penetration. Particle size <5 μm: Acid Blue 221 with particle size under 5 μm is used in ink formulation, where it delivers high dispersion stability for sharp print quality. Light fastness rating 5: Acid Blue 221 with light fastness rating 5 is used in wool yarn dyeing, where it enhances color durability under prolonged sunlight exposure. Solubility in water 50 g/L: Acid Blue 221 with water solubility of 50 g/L is used in aqueous dye bath applications, where it achieves rapid dissolution and homogeneous color. Molecular weight 626.49 g/mol: Acid Blue 221 with molecular weight of 626.49 g/mol is used in laboratory staining protocols, where it provides precise and reproducible chromatic results. Stability temperature up to 120°C: Acid Blue 221 with stability up to 120°C is used in high-temperature silk dyeing, where it maintains consistent shade and resists thermal degradation. pH stability range 2–6: Acid Blue 221 with pH stability between 2 and 6 is used in acid dye processes, where it ensures color consistency and minimizes dye degradation. Melting point >200°C: Acid Blue 221 with melting point above 200°C is used in heat-fixed printing, where it guarantees thermal endurance and prevents color migration. |
Competitive Acid Blue 221 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!
