Products Optical Brightener Optical-Brightener-Er-I

Optical Brightener ER-I

    • Product Name: Optical Brightener ER-I
    • Chemical Name (IUPAC): 4,4'-Bis(2-sulfostyryl)biphenyl disodium salt
    • CAS No.: 13001-38-2
    • Chemical Formula: C24H16N2O2S2Na2
    • 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 652537
    Product Name Optical Brightener ER-I
    Chemical Formula C24H16N2O2
    Cas Number 13001-39-3
    Appearance Yellowish green crystalline powder
    Molecular Weight 364.40 g/mol
    Melting Point 230-232°C
    Solubility Insoluble in water; soluble in organic solvents
    Main Application Brightening polyester fibers and plastics
    Max Absorption Wavelength 372 nm
    Max Emission Wavelength 434 nm
    Ionic Type Nonionic
    Light Fastness Good

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

    Packing & Storage
    Packing Optical Brightener ER-I is packaged in 25 kg woven plastic bags, lined with polyethylene, ensuring product integrity and moisture protection during transport.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Optical Brightener ER-I: Typically 10,000–12,000 kg packed in 25 kg drums, optimized for safe transport.
    Shipping Optical Brightener ER-I is typically shipped in fiber drums or woven bags lined with plastic, each containing 25 kg net weight. The chemical should be stored and transported in a cool, dry, and well-ventilated area, protected from moisture, direct sunlight, and physical damage to maintain product quality and stability.
    Storage **Optical Brightener ER-I should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and moisture. Keep the container tightly sealed to prevent contamination and deterioration. Avoid exposure to strong acids, alkalis, and oxidizing agents. Store at ambient temperature and handle with suitable protective equipment to ensure safety and maintain product quality.**
    Shelf Life Optical Brightener ER-I has a shelf life of 12 months when stored in a cool, dry, and well-ventilated area.
    Application of Optical Brightener ER-I
    Purity 99%: Optical Brightener ER-I with purity 99% is used in polyester fiber processing, where it provides high brightness and whiteness yield.Melting Point 230°C: Optical Brightener ER-I with a melting point of 230°C is used in plastic extrusion, where it maintains color stability during high-temperature operations.Molecular Weight 1000 g/mol: Optical Brightener ER-I with molecular weight 1000 g/mol is used in coatings manufacturing, where it delivers consistent optical enhancement and dispersibility.Particle Size <5 μm: Optical Brightener ER-I with particle size less than 5 micrometers is used in paper coating, where it ensures uniform surface coverage and enhanced luminosity.Stability Temperature 200°C: Optical Brightener ER-I with stability temperature of 200°C is used in nylon molding, where it sustains whitening performance without decomposition.Solubility in Water <0.05%: Optical Brightener ER-I with solubility in water below 0.05% is used in solvent-based inks, where it prevents migration and ensures print clarity.Viscosity Grade Low: Optical Brightener ER-I with low viscosity grade is used in textile dyeing baths, where it allows easy blending and application uniformity.UV Absorption 350 nm Peak: Optical Brightener ER-I with UV absorption peaking at 350 nm is used in polypropylene films, where it maximizes fluorescence intensity under UV exposure.Lightfastness Level 6: Optical Brightener ER-I with lightfastness level 6 is used in outdoor PVC products, where it enhances weatherability and longevity of whiteness.pH Stability Range 6-9: Optical Brightener ER-I with pH stability range 6-9 is used in detergent formulations, where it retains optical effect across varying washing conditions.
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    Competitive Optical Brightener ER-I 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.

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    Tel: +8615651039172

    Email: sales9@bouling-chem.com

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