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    Sodium Tripolyphosphate

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    Specification :

    Sodium Tripolyphosphate ( STPP)
    1, Sodium Tripolyphosphate ( STPP)
    2, CAS No.: 7758-29-4
    3, HS Code: 28353100
    4, Type: STPP 94% min Tech Grade
    Properties: White powder, surface density: 0.35-0.9g/ cm3, melting point: 622C, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.
    Application:
    1, Used as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener, tanning agent for leather making, auxiliary for dyeing;
    2, As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.;
    3, As an oil contamination resistance agent in paper production.

    Specification:
    Re: STPP Tech Grade 94% min

    Appearance: White Powder

    Na5P3O10: 94.0% Min

    P2 O 5: 57.0% Min

    Water Insoluble Matter: 0.10% Max

    Iron( Fe) : 0.007% Max

    PH value ( 1% water solution) : 9.2-10.0

    Whiteness : 88% Min

    Ignition: loss 1.0

    density ( g/ cm3) : 0.65-0.99

    Phase I: 10-30

    Packing: 25kg/ bag, 22MT/ 20’ FCL



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