Sodium Tripolyphosphate - (STPP) Food Grade

    DESCRIPTION

    FormulaNa5P3O10
    SynonymsPentasodium triphosphate
    Pentasodium tripolyphosphate
    AppearanceWhite odourless powder
    CAS No.7758-29-4
    Molecular weight367.86

    SPECIFICATIONS

    AssayMin 90 %
    Moisture
    (@110°C for 4hr)
    Max 0.5 %
    Particle sizeRetained on 40 mesh (420 μm): Min 5%
    Retained on 140 mesh (105μm): Min 65%
    Passed thru 140 mesh (105μm): Max 30%
    Bulk DensityMin 0.65 Gm/Cc
    pH
    (1% Solution)
    9.5 to 10.1
    Fluoride
    (F)
    Max 10.0 ppm
    Heavy metals
    (as Pb)
    Max 10.0 ppm
    Cadmium
    (Cd)
    Max 1.0 ppm
    Arsenic
    (as As)
    Max 3.0 ppm
    Lead
    (Pb)
    Max 2.0 ppm
    Matter Insoluble in WaterMax 0.1 %
    Phosphorus Oxide
    (P2O5)
    56.0 to 58.0%
    Mercury
    (Hg)
    Max 1.0 ppm
    Packaging25kg paper bag with PE Liner
    Shelf life2 years


    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 21 August 2012 (1243)

Receive this spec by email

Receive this specification by email in PDF: