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    Silica solution
    【Name】Silica solution

    I. Performance
    Odorless and non-toxic. Molecular formula is mSiO2·nH2O.

    II. Use
    For favorable cohesiveness, high-temperature resistance, film-forming property, gel property, charge performance, large specific surface area, odorless and non-toxic, it can be widely used in industries as follows.
    1. Precision casting
    For favorable cohesiveness and low shrinkage and other features, it can be widely used in precision casting industry.

    2. Refractory material
    Silicate refractory fiber taking silica solution as raw material has excellent energy saving property and high-temperature resistance, it can be used in furnace and other equipments as thermal insulation material.

    3.Coating
    Composite exterior wall coating material taking silica solution as main film forming matter has excellent water-proof, fire-proof, fouling resistant performance.

    4. Textile industry
    Wool treated by silica solution can improve the spinnability of wool and increase yield. Silica solution can also be widely used in treating agent for various textiles, such as nylon, viscose, cellulose acetate fiber, etc. The product can empower fabric with wear resistance, wash resistance, pollution resistance, anti-static and other advantages.

    5. Papermaking industry
    It can increase skid resistance, moisture-proof property of product. Paper will have higher stability, slip resistance and printing property.

    6. Battery industry
    Adding silica solution in storage battery electrolyte can generate gel with conductivity.

    7. Catalyst industry
    For large specific surface area and activity, it can be used as catalyst carrier.

    8. Other
    It can also be used as purifier, clarifying agent, dispersing agent for kinescope coating, polishing agent for semiconductor element, etc.

    III. Packing & Storage
    【Shelf Life】: Alkali product is one year, acid product is half a year
    【Packing】: 25kg plastic drum or 250kg plastic drum.
    【Storage】: Keep at 0-40℃, prevent freezing and direct sunlight.

    V. Technical Index

    Item Index
    Alkali sodium type Acid type
    JN-20 JN-25 JN-30 JN-35 JN-40 SW-20 SW-25 SW-30
    Silicon dioxide%, ≥ 20.0-21.0 25.0-26.0 30-31 30-31 35-36 40-41 20.0-21.0 25.0-26.0 30.0-31.0
    sodium oxide%, ≤ 0.3 0.3 0.3 0.2 0.3 0.4 0.04 0.05 0.06
    PH Value (25℃) 9.0-10.0 2.0-4.0
    Viscosity (25℃)
    ×10-3Pa s, ≤
    5.0 6.0 7.0 12.0 25.0 5.0 6.0 7.0
    Density (25℃) g/cm3 1.12-1.14 1.15-1.17 1.19-1.21 1.20-1.25 1.28-1.30 1.12-1.14 1.15-1.17 1.19-1.21
    Average Particle Size nm <10
    10-20
    21-40
    41-100
    Remark: Viscosity of products with the average particle size<10 should be negotiated by both the supply and requisitioning parties
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