Diammonium Phosphate


    Synonyms: DAP, diammonium hydrogen phosphate, ammonium phosphate dibasic. Secondary ammonium phosphate

    AppearanceAnhydrous white crystals
    ApplicationsFireproofing agent, Nutrient for yeast and in many other fermentation processes, water soluble fertilizers, many other industrial processes
    CAS No.7783-28-0
    EINECS No.231-987-8
    Molecular weight132.06


    AssayMin 99.5 %
    Insoluble MatterMax 0.05 %
    Solubility in Water
    (at 20)
    Typical: 410g/l solution
    Calcium (Ca)Max 20 ppm
    Chloride (Cl)Max 10 ppm
    Bulk DensityTypical: 1000g/cm3
    pH8.0 to 8.5
    FluorideMax 200 ppm
    Heavy metals
    (as Pb)
    Max 10 ppm
    ArsenicMax 2 ppm
    LeadMax 1 ppm
    Phosphorus Oxide
    Max 53.5 %
    Min 20.8 %
    Sulphur (S)
    (Oxide - SO3)
    Max 500 ppm
    StorageStore in a temperate and dry place, keep in original packaging. Reclose partially used bags
    PackagingBulk, Big Bags on a pallet, 25kg valve paper, PE or PP bags on pallets with a stretched plastic foil
    Shelf life2 years from date of manufacture

    Direct Food Ingredients will ensure that any material supplied this specification will confirm to the above physical and chemical properties. However, we have no control over the use of the material and can accept no responsibility for problems caused by the customer's failure to ensure the material supplied is suitable for the intended use.

    This specification has been last modified on Tue 5 October 2010 (183)

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