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Silica Fume

    Specifications

    HS Code

    183835

    Chemicalname Silicon Dioxide (SiO2)
    Appearance Gray or off-white ultrafine powder
    Particlesize Typically less than 1 micron (0.1 μm average)
    Specificsurfacearea 15,000 - 30,000 m²/kg (BET)
    Bulkdensity 200 - 300 kg/m³ (undensified), 500 - 700 kg/m³ (densified)
    Sio2content 85% - 98%
    Phvalue 6 to 7
    Pozzolanicactivityindex 100% - 130%
    Meltingpoint About 1,600°C
    Color Gray to dark gray
    Moisturecontent ≤ 3%
    Chloridecontent < 0.1%
    Lossonignition < 6%
    Solubility Insoluble in water
    Origin By-product of silicon or ferrosilicon alloy production

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

    Packing & Storage
    Packing Silica Fume is packaged in 25 kg moisture-resistant, multi-ply paper bags with clear labeling, product details, and handling instructions.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Silica Fume typically accommodates 10-12 metric tons, packed in jumbo bags or pallets for secure transport.
    Shipping Silica fume is typically shipped in sealed, moisture-resistant bags, bulk bags, or as a slurry in tankers to prevent contamination and dust release. Appropriate hazard labeling and handling instructions are provided. Transport must comply with safety regulations, ensuring the material remains dry and securely contained throughout shipping and storage.
    Storage Silica fume should be stored in a dry, moisture-free environment, typically in sealed bags or bulk storage silos. The storage area must be well-ventilated and protected from contamination and water ingress. Avoid exposure to wind to prevent dust dispersion. Proper labeling and secure containment help maintain product quality and ensure safety during handling and transport.
    Shelf Life Silica fume typically has an indefinite shelf life if stored in dry, moisture-free conditions with unopened, properly sealed packaging.
    Free Quote

    Competitive Silica Fume prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@boxa-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@boxa-chem.com

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    Certification & Compliance