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    JD-657 APP Phase II

    Crystal form phase II ammonium polyphosphate (JD-657) is a nitrogen-containing halogen-free environment-friendly flame retardant, especially for the use of anti-fire retardant coating .The product has high degree of polymerization, good thermal stability, low hygroscopicity. Unlike halogen-containing flame retardant, in the burning process it forms expanded carbon layer to insulate heat and air. JD-515 has low smoke, low toxicity, no droplets, is a highly efficient inorganic environment-friendly flame retardant.

    Molecular Formula: (NH4PO3)n n>1000

    Model No.: JD-657

    Crystal form phase II ammonium polyphosphate (JD-657) is a nitrogen-containing halogen-free environment-friendly flame retardant, especially for the use of anti-fire retardant coating .The product has high degree of polymerization, good thermal stability, low hygroscopicity. Unlike halogen-containing flame retardant, in the burning process it forms expanded carbon layer to insulate heat and air. JD-515 has low smoke, low toxicity, no droplets, is a highly efficient inorganic environment-friendly flame retardant.

    Specification:

    Technical Index

    Chemical Industry standard

    HG/T2770-200

    Enterprises Standard
    AppearanceWhite powderWhite powder
    P2OContent%≥71≥71
    N Content %≥14≥14
    Average Polymerization degree(n)≥1000≥1000

    P Value值

    5.5-7.55.5-7.5
    Particle Size(D50um)≤205
    Solubility≤0.50.5
    Moisture≤0.250.25
    Bulk Density0.5-0.70.5-0.7

    Uses: JD-657 is widely used in plastic (PP, PE, PVC, etc.), polyester, rubber, all kinds of high-grade expansion of fireproof coatings and other fields.

    Packing: in net weight 25kg plastic woven bags lined with plastic liner.


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