Products Optical Brightener Optical-Brightener-Kcb

Optical Brightener KCB

    • Product Name: Optical Brightener KCB
    • Chemical Name (IUPAC): 1,4-Bis(benzoxazol-2-yl)naphthalene
    • CAS No.: 5089-22-5
    • Chemical Formula: C24H16N2
    • Form/Physical State: Powder
    • Factroy Site: West Ujimqin Banner, Xilingol League, Inner Mongolia, China
    • Price Inquiry: sales9@bouling-chem.com
    • Manufacturer: Bouling Coating
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    Specifications
    HS Code 960628
    Chemical Name 1,4-Bis(2-benzoxazolyl)naphthalene
    Cas Number 5089-22-5
    Appearance Light yellow-green powder
    Molecular Formula C24H14N2O2
    Molecular Weight 362.38 g/mol
    Melting Point 210-212°C
    Solubility Insoluble in water, soluble in organic solvents
    Color Index Optical Brightener 367
    Application Used in plastics, fibers, and coatings
    Fluorescence Emits blue light under UV radiation
    Processing Temperature Up to 300°C
    Light Fastness Excellent
    Purity ≥99.0% (by HPLC)
    Storage Store in a cool, dry place away from sunlight
    Shelf Life 2 years

    As an accredited Optical Brightener KCB factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Optical Brightener KCB is packed in 25 kg fiber drums, lined with plastic bags for moisture protection and secure handling.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Optical Brightener KCB: 8,000-9,000 kg packed in 25 kg fiber drums or cartons, palletized.
    Shipping Optical Brightener KCB is shipped in sealed, moisture-proof fiber drums or plastic bags, each typically containing 25 kg. The chemical should be stored and transported in cool, dry, and well-ventilated conditions, avoiding exposure to direct sunlight and extreme temperatures to maintain product stability and prevent degradation.
    Storage Optical Brightener KCB 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 closed to prevent moisture absorption. Avoid contact with oxidizing agents and acids. Store in original, labeled containers to ensure safety and maintain product quality. Follow standard chemical storage guidelines and local regulations.
    Shelf Life Optical Brightener KCB typically has a shelf life of 2 years when stored in a cool, dry, and well-ventilated place.
    Application of Optical Brightener KCB
    Purity 99%: Optical Brightener KCB with purity 99% is used in polyester fiber processing, where it delivers high brightness and long-lasting color fastness. Melting Point 210°C: Optical Brightener KCB with a melting point of 210°C is used in plastic extrusion, where it ensures thermal stability during high-temperature processing. Particle Size <5μm: Optical Brightener KCB with particle size less than 5μm is used in masterbatch production, where it allows uniform dispersion and consistent optical performance. Molecular Weight 408.49 g/mol: Optical Brightener KCB with molecular weight 408.49 g/mol is used in polypropylene films, where it achieves excellent whitening effect and transparency. Stability Temperature 250°C: Optical Brightener KCB with a stability temperature of 250°C is used in PVC compounding, where it maintains performance without degradation. Lightfastness Grade 7: Optical Brightener KCB with lightfastness grade 7 is used in outdoor synthetic textiles, where it provides superior UV resistance and prolonged brightness retention. Absorption Max 370nm: Optical Brightener KCB with absorption maximum at 370nm is used in coatings for electronics, where it enhances blue-white shade and optimal fluorescence. Viscosity 35 mPa·s: Optical Brightener KCB with viscosity of 35 mPa·s is used in liquid detergent formulations, where it enables easy blending and stable formulation. Solubility in Organic Solvents: Optical Brightener KCB with excellent solubility in organic solvents is used in ink manufacturing, where it facilitates coloration and smooth application. Thermal Resistance >300°C: Optical Brightener KCB with thermal resistance above 300°C is used in high-performance engineering plastics, where it maintains optical strength at elevated temperatures.
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