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HS Code |
312902 |
| Cas Number | 2580-78-1 |
| Chemical Name | Reactive Blue 19 |
| Molecular Formula | C22H16N2Na2O11S3 |
| Molecular Weight | 626.54 |
| Appearance | Blue powder or granules |
| Solubility In Water | Soluble |
| Dye Class | Reactive dye |
| Color Index Number | CI 61105 |
| Usage | Textile dyeing, especially cotton |
| Maximum Absorption Wavelength | 593 nm |
| Ph Stability | Stable in neutral to slightly alkaline |
| Melting Point | Decomposes before melting |
| Iupac Name | Disodium 3,3'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)bis(iminocarbonyl)]bis(6-amino-4-hydroxy-5-[(sulphonatomethyl)amino]naphthalene-2-sulphonate) |
| Ec Number | 220-803-2 |
As an accredited Reactive Blue 19 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Reactive Blue 19 is packaged in a 500-gram sealed plastic bottle, labeled with product name, CAS number, and hazard warnings. |
| Shipping | Reactive Blue 19 should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Handle with care to avoid spills and skin contact. During transport, ensure compliance with local, national, and international regulations. Store in a cool, dry place upon arrival. Avoid incompatible substances during shipment. |
| Storage | Reactive Blue 19 should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from direct sunlight, heat, and sources of ignition. Avoid contact with incompatible materials such as strong oxidizers and reducing agents. The storage area should be clearly labeled, and access should be restricted to trained personnel. Always follow standard chemical safety protocols. |
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Purity 98%: Reactive Blue 19 with purity 98% is used in textile dyeing processes, where it ensures vibrant and uniform coloration on cotton fabrics. Molecular weight 626.54 g/mol: Reactive Blue 19 with molecular weight 626.54 g/mol is used in cellulosic fiber printing, where it enables precise shade consistency. Stability temperature 120°C: Reactive Blue 19 with stability temperature of 120°C is used in high-temperature dye fixation, where it delivers excellent wash fastness. Particle size <10 microns: Reactive Blue 19 with particle size less than 10 microns is used in inkjet textile printing, where it improves print resolution and color penetration. Aqueous solubility 50 g/L: Reactive Blue 19 with aqueous solubility of 50 g/L is used in continuous dyeing machines, where it promotes rapid dye dissolution and homogeneous liquor. pH range 6–9: Reactive Blue 19 effective in pH range 6–9 is used in reactive dye baths, where it enhances reactivity and fixation efficiency on cellulose substrates. Melting point 220°C: Reactive Blue 19 with melting point 220°C is used in heat-setting textile operations, where it maintains dye integrity and prevents sublimation losses. Viscosity 1.2 mPa·s at 25°C: Reactive Blue 19 with viscosity 1.2 mPa·s at 25°C is used in liquid dye formulations, where it enables easy application and even spread on fabric surface. Light fastness grade 5: Reactive Blue 19 with light fastness grade 5 is used in upholstery fabric manufacturing, where it provides superior resistance to fading from prolonged sunlight exposure. Residue on ignition <1%: Reactive Blue 19 with residue on ignition less than 1% is used in high-purity applications for garment dyes, where it minimizes contaminant levels and ensures safety compliance. |
Competitive Reactive Blue 19 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.
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Tel: +8615651039172
Email: sales9@bouling-chem.com
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