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HS Code |
981769 |
| Name | Blue 2R |
| Alternative Names | Indigo Carmine |
| Color Index | CI 73015 |
| Chemical Class | Sulfonated indigo dye |
| Molecular Formula | C16H8N2Na2O8S2 |
| Appearance | Dark blue to purple powder |
| Solubility | Soluble in water |
| Uses | Biological staining, food coloring, pharmaceuticals |
| Maximum Absorption Wavelength Nm | 610 |
| Cas Number | 860-22-0 |
As an accredited Blue 2R factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Blue 2R is packaged in a sealed, 500g plastic bottle with a blue screw cap, labeled with hazard warnings. |
| Shipping | Blue 2R should be shipped in tightly sealed, clearly labeled containers, protected from moisture and direct sunlight. It must comply with local and international regulations for chemical transport, including hazard classification if applicable. Ensure the use of suitable cushioning and maintain compatibility with container materials to prevent spillage or contamination during transit. |
| Storage | **Blue 2R** should be stored in a tightly closed container, in a cool, dry, and well-ventilated area. Keep it away from direct sunlight, moisture, heat sources, and incompatible substances such as strong oxidizers. Ensure the storage area is labeled and access is restricted to trained personnel. Protect from physical damage and follow all relevant safety guidelines and regulations. |
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Purity 98%: Blue 2R with purity 98% is used in textile dyeing processes, where it delivers high chromatic strength and consistent shade reproducibility. Viscosity Grade HV: Blue 2R of viscosity grade HV is used in inkjet ink formulations, where it ensures smooth flow and prevents nozzle clogging. Molecular Weight 350 g/mol: Blue 2R with molecular weight 350 g/mol is used in synthetic fiber coloration, where it offers optimal fiber affinity and penetration. Particle Size <5 µm: Blue 2R with particle size less than 5 µm is used in paint manufacturing, where it provides excellent dispersion and uniform surface coverage. Melting Point 210°C: Blue 2R with a melting point of 210°C is used in thermoplastic compounding, where it maintains color integrity under processing heat. Lightfastness Grade 6: Blue 2R rated lightfastness grade 6 is used in outdoor coating applications, where it enhances UV resistance and prolongs color retention. Stability Temperature 120°C: Blue 2R stable at 120°C is used in paper coating lines, where it sustains color intensity during high-temperature drying. Solubility in Water 15 g/L: Blue 2R with water solubility of 15 g/L is used in aqueous ink systems, where it ensures rapid dissolution and uniform coloration. pH Stability Range 4.5–8.0: Blue 2R stable within pH 4.5–8.0 is used in detergent formulations, where it maintains color stability across varied pH environments. Heat Resistance 180°C: Blue 2R with heat resistance up to 180°C is used in plastic extrusion, where it prevents color degradation during processing. |
Competitive Blue 2R 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!