Products Optical Brightener Optical-Brightener-Ob

Optical Brightener OB

    • Product Name: Optical Brightener OB
    • Chemical Name (IUPAC): 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
    • CAS No.: 7128-64-5
    • Chemical Formula: C26H26N2O2S
    • 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 591120
    Chemical Name 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
    Cas Number 7128-64-5
    Appearance Yellowish green powder
    Molecular Formula C26H26N2O2S
    Molecular Weight 430.57 g/mol
    Melting Point 196-203°C
    Solubility Insoluble in water, soluble in organic solvents like chloroform and toluene
    Maximum Absorption Wavelength 375 nm
    Maximum Emission Wavelength 437 nm
    Application Widely used as a fluorescent whitening agent in plastics, coatings, inks, and fibers

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

    Packing & Storage
    Packing Optical Brightener OB is packaged in 25 kg fiber drums, lined with plastic bags for moisture protection and secure chemical containment.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Optical Brightener OB: Typically 6-8 metric tons, packed in 25kg fiber drums or cartons, securely palletized.
    Shipping Optical Brightener OB is typically shipped in tightly sealed fiber drums or plastic containers, each lined with inner plastic bags to prevent moisture absorption and contamination. Containers are clearly labeled and handled according to safety regulations. The product should be stored in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances.
    Storage **Storage of Optical Brightener OB:** Optical Brightener OB should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Protect the chemical from moisture and incompatible materials, such as strong oxidizers. Keep the storage area clearly labeled and ensure access is limited to trained personnel wearing appropriate protective equipment.
    Shelf Life Optical Brightener OB typically has a shelf life of 2 years when stored in a cool, dry, and well-sealed container.
    Application of Optical Brightener OB
    Purity 99%: Optical Brightener OB with purity 99% is used in polypropylene sheets, where it enhances whiteness and visual brightness. Melting Point 201°C: Optical Brightener OB with melting point 201°C is used in polyester fiber production, where it ensures processing stability and optimal color development. Particle Size ≤5µm: Optical Brightener OB of particle size ≤5µm is used in PVC films, where it provides uniform dispersion and consistent optical effects. Light Stability 7 Grade: Optical Brightener OB with light stability 7 grade is used in outdoor plastic packaging, where it maintains brightness under prolonged UV exposure. Molecular Weight 430 g/mol: Optical Brightener OB with molecular weight 430 g/mol is used in engineering plastics, where it promotes compatibility and sustained performance. Solubility in Organic Solvents: Optical Brightener OB with high solubility in organic solvents is used in solvent-based inks, where it yields high fluorescence and vivid print quality. Thermal Stability 250°C: Optical Brightener OB with thermal stability 250°C is used in HDPE blow molding, where it resists degradation during high-temperature processing.
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    For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.

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    Tel: +8615651039172

    Email: sales9@bouling-chem.com

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