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HS Code |
543197 |
| Product Name | Optical Brightener 31 |
| Cas Number | 4193-55-9 |
| Appearance | Yellowish or off-white powder |
| Chemical Formula | C40H38N12O8S2 |
| Molecular Weight | 878.94 g/mol |
| Solubility | Insoluble in water, soluble in organic solvents |
| Melting Point | 219-221°C |
| Application | Textile whitening agent |
| Lightfastness | Good |
| Ph Stability | Stable in pH 5-11 |
| Bulk Density | Approximately 0.3-0.5 g/cm³ |
| Odour | Odorless |
As an accredited Optical Brightener 31 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Optical Brightener 31 is packaged in 25 kg fiber drums with inner polyethylene liners, ensuring safe storage and easy handling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Optical Brightener 31: Typically 7-9 metric tons packed in 25kg bags or drums, depending on packaging type. |
| Shipping | Optical Brightener 31 is typically shipped in secure, sealed drums or bags, protected from moisture, heat, and direct sunlight. All containers must be clearly labeled according to regulatory standards. Store and transport at ambient temperatures. Handle with care, ensuring compliance with applicable chemical safety and transportation guidelines. |
| Storage | Optical Brightener 31 should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly sealed to prevent moisture absorption and contamination. Store away from strong acids, bases, and oxidizing agents. Ensure proper labeling and handling according to recommended safety guidelines to maintain product stability and quality. |
| Shelf Life | Optical Brightener 31 typically has a shelf life of 12-24 months if stored in a cool, dry, and sealed container. |
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Purity 99%: Optical Brightener 31 with 99% purity is used in synthetic fiber manufacturing, where enhanced whiteness and brightness are achieved. Molecular Weight 600 g/mol: Optical Brightener 31 with a molecular weight of 600 g/mol is used in detergent formulations, where strong fluorescence boosts cleaning performance by improving fabric brightness. Melting Point 200°C: Optical Brightener 31 featuring a melting point of 200°C is used in high-temperature plastic extrusion, where thermal stability ensures consistent optical properties in final products. Particle Size 5 μm: Optical Brightener 31 with a particle size of 5 μm is used in paper coatings, where fine dispersion leads to uniform surface gloss and optical clarity. Viscosity Grade Low: Optical Brightener 31 with low viscosity grade is used in aqueous coating systems, where easy blending allows for high process efficiency and even coverage. Lightfastness Grade 7: Optical Brightener 31 with lightfastness grade 7 is used in outdoor textiles, where superior resistance to UV fading maintains fabric brightness. Stability Temperature 180°C: Optical Brightener 31 with a stability temperature of 180°C is used in PVC compounding, where thermal resistance prevents yellowing during processing. Solubility in Water 45 g/L: Optical Brightener 31 with a solubility of 45 g/L is used in liquid laundry detergents, where complete dissolution results in streak-free fabric brightening. pH Range 6–8: Optical Brightener 31 stable within pH range 6–8 is used in water-based inks, where compatibility ensures consistent coloration and long-term ink stability. Absorption Maximum 360 nm: Optical Brightener 31 with an absorption maximum at 360 nm is used in fluorescent paints, where optimal excitation yields vivid and durable visual effects. |
Competitive Optical Brightener 31 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
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