|
HS Code |
368319 |
| Product Name | Optical Brightener SWN |
| Appearance | Light yellowish powder |
| Solubility | Soluble in water |
| Chemical Family | Stilbene derivative |
| Cas Number | 7128-64-5 |
| Molecular Formula | C28H20S2O6Na2 |
| Main Application | Textile whitening |
| Melting Point | Above 300°C (decomposes) |
| Ionic Nature | Anionic |
| Maximum Absorption Wavelength | Approximately 350 nm |
| Maximum Fluorescence Emission | Approximately 430 nm |
| Recommended Dosage | 0.05-0.3% (on weight of fabric) |
| Ph Stability | Stable in pH 4-11 |
| Lightfastness | Good |
| Storage Conditions | Cool, dry place |
As an accredited Optical Brightener SWN factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Optical Brightener SWN is packaged in 25 kg fiber drums lined with plastic bags, ensuring product stability and moisture protection. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Optical Brightener SWN: Typically loads 10-14 metric tons, packed in 25kg fiber drums or cartons, safely secured. |
| Shipping | **Shipping Description for Optical Brightener SWN:** Optical Brightener SWN is typically shipped in fiber drums, plastic barrels, or bags with inner linings, each containing 25 kg. It should be transported and stored in a cool, dry, and well-ventilated area, protected from moisture and direct sunlight. Handle with care to avoid spillage or contamination. |
| Storage | **Optical Brightener SWN** should be stored in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and moisture. Keep the container tightly closed to prevent contamination. Avoid storing near strong acids, bases, or oxidizing agents. Use original, labeled containers and ensure proper handling to minimize exposure to dust. Store according to regulatory and safety guidelines. |
| Shelf Life | Optical Brightener SWN typically has a shelf life of 24 months when stored in a cool, dry, and well-sealed container. |
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Purity 99%: Optical Brightener SWN with purity 99% is used in high-performance polyester fiber manufacturing, where enhanced whiteness and consistent optical brightness are achieved. Molecular weight 1200 g/mol: Optical Brightener SWN with molecular weight 1200 g/mol is used in PVC plastisol coatings, where improved dispersion and uniform fluorescence are provided. Melting point 220°C: Optical Brightener SWN with a melting point of 220°C is used in polyamide extrusion processes, where effective thermal stability and colorfastness at elevated temperatures are ensured. Particle size ≤10 μm: Optical Brightener SWN with particle size ≤10 μm is used in paper coating formulations, where superior smoothness and increased sheet brightness are attained. Viscosity 200 mPa·s (25°C): Optical Brightener SWN at viscosity 200 mPa·s (25°C) is used in aqueous inkjet inks, where optimal print uniformity and minimized clogging are delivered. Stability temperature 180°C: Optical Brightener SWN with a stability temperature of 180°C is used in polypropylene masterbatch applications, where retained fluorescence during high-temperature processing is observed. Water solubility 40 g/L: Optical Brightener SWN with water solubility of 40 g/L is used in textile bleaching baths, where rapid dissolution and homogeneous whitening are obtained. pH stability range 4–10: Optical Brightener SWN with pH stability range 4–10 is used in liquid laundry detergents, where reliable whitening effect across typical formulation pH values is realized. Light fastness rating 6: Optical Brightener SWN with light fastness rating 6 is used in outdoor plastic films, where long-term resistance to yellowing and color fading is achieved. Absorption maximum 370 nm: Optical Brightener SWN with absorption maximum at 370 nm is used in UV-cured coatings, where strong brightening under UV exposure and increased coating luminosity are ensured. |
Competitive Optical Brightener SWN 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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