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HS Code |
968909 |
| Product Name | Direct Red 23 |
| Synonyms | Congo Red |
| Cas Number | 3358-54-3 |
| Chemical Formula | C32H22N6Na2O6S2 |
| Molecular Weight | 696.66 g/mol |
| Appearance | Red powder |
| Solubility In Water | Very soluble |
| Melting Point | 360 °C (decomposes) |
| Dye Class | Azo dye |
| Maximum Absorption Wavelength | 497 nm |
| Usage | Textile and biological stain |
| Storage Conditions | Store in a cool, dry place |
| Stability | Stable under recommended storage conditions |
| Hazard Statements | May cause allergy or asthma symptoms |
As an accredited Direct Red 23 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Red 23 is packed in a tightly sealed 500g HDPE bottle with a red hazard label, supplier details, and batch number. |
| Shipping | Direct Red 23 is shipped in tightly sealed, clearly labeled containers to prevent leakage or contamination. It is stored and transported in a cool, dry, and well-ventilated area, away from incompatible substances. Appropriate hazard labels and safety data sheets accompany each shipment to ensure proper handling and regulatory compliance. |
| Storage | Direct Red 23 should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight, moisture, and incompatible substances such as strong oxidizers. Ensure the storage area is clearly labeled and compliant with local chemical storage regulations. Avoid generating dust and practice good hygiene after handling. Keep out of reach of unauthorized personnel. |
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Purity 98%: Direct Red 23 with a purity of 98% is used in textile dyeing processes, where it ensures vibrant shade consistency and high color fastness on cotton fibers. Solubility in Water: Direct Red 23 with high water solubility is used in paper coloring applications, where it allows rapid and uniform ink penetration for bright print quality. Molecular Weight 534.49 g/mol: Direct Red 23 of molecular weight 534.49 g/mol is used in laboratory staining protocols, where it provides reliable and reproducible tissue visualization. Particle Size < 10 µm: Direct Red 23 with particle size below 10 µm is used in aqueous ink formulations, where it improves dispersion stability and prevents nozzle clogging. Stability Temperature 100°C: Direct Red 23 stabilized up to 100°C is used in high-temperature dye baths, where it maintains color strength and resists degradation during processing. Lightfastness Grade 4: Direct Red 23 with lightfastness grade 4 is used for printing on display banners, where it retains hue intensity under prolonged exposure to sunlight. pH Range 6–8: Direct Red 23 effective in pH range 6–8 is used in dyeing mildly alkaline fabrics, where it achieves optimal adsorption and uniform coloration. Melting Point 300°C: Direct Red 23 with melting point 300°C is used in pigment compounding for plastics, where it endures thermal processing without fading or decomposition. Viscosity 12 mPa·s: Direct Red 23 at viscosity 12 mPa·s is used in liquid dye solutions, where it ensures even application and reduces streak formation during roller coating. Residual Moisture < 1%: Direct Red 23 with residual moisture below 1% is used in powder dye blending, where it prevents caking and extends shelf life. |
Competitive Direct Red 23 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!
