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    disodium dihydrogen pyrophosphate

    Update: 2013/10/14 View:
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    Introduction
     

    Chemical Name:

    disodium dihydrogen pyrophosphate , Sodium acid pyrophosphate

    Molecular Formula:

    Na2H2P2O7

    Molecular Weight:

    221.94

    CAS:

    7758-16-9

    Character:

    hite monoclinic system crystalline powder or fused mass. It has accessibility. Easily soluble in water, insoluble in ethanol.

    Uses:

    In food processing industry, it is used as buffering, swelling agent, chelae agent, stabilizers, emulsifier, and color improver.

    Packing:

    It is packed with polyethylene bag as liner and a compound paper-plastic woven bag as the outer layer. The net weight of each bag is 25kg.

    Storage & Transportation:

    It should be stored in a dry and ventilate warehouse, kept away from moisture and hot. Furthermore, it should be stored separately from poisonous substances. Unload with care as to avoid damage to packing.

    Quality index:

    Name of index

    FCC-V

    GB25567-2010

    Content (as Na2H2P2O7) ≥ %

    93.0-100.5

    93.0-100.5

    Water Insoluble% ≤%

    1.0

    1.0

    PH (1% aqueous solution)

    -

    3.5-4.5

    Arsenic(As), % ≤

    0.0003

    0.0003

    Heavy Metals (as Pb), %≤

    -

    0.001

    Fluoride(F), % ≤

    0.005

    0.005

    Pb  % ≤

    0.0002

    0.0002

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