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    Your Position: Home > Product > Sodium phosphates

    Tetrasodium pyrophosphate

    Update: 2013/10/14 View:
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    Introduction
     

    Chemical Name:

    Tetrasodium pyrophosphate

    Molecular Formula:

    Na4P2O7

    Molecular Weight:

    265.90

    CAS:

    13472-36-1

    Character:

    Colorless clear crystal or white crystalline powder. The relative density is 2.534 and melting point is 880°C. It easily soluble in water and insoluble in ethanol. It will weathering in dry air and lose crystal water under 100°C. It easily absorbs water to deliquesce in air.

    Uses:

    It is used as quality improver, regulator of PH value, chelate agent, emulsifier and binder in food industry. It also is used in the processing of meat and aquatic product.

    Packing:

    It is packed with polythene bag as the inner layer, 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 ventilative warehouse, kept away from water and moisture during transport. Unload with care as to avoid being damaged. Furthermore, it must be stored separately from poisonous substances.

    Quality index:

     Name of index

     GB25557-2010

    FCC-V

    Content Na4P2O7    %

    96.5-100.5

    95.0-100.5

    Water Insoluble    ≤%

    0.2

    0.2

    PH (1% aqueous solution) 

    9.9-10.7

    -

    Arsenic (As)    ≤%

     0.0003

    0.0003

    Heavy Metal (as Pb)   ≤%

    0.001

    -

    Fluoride (as F)   ≤%

    0.005

    0.005

    Loss on drying    ≤%

    0.5

    0.5

    Orthophosphate

    pass test

    -

    Pb   ≤%

    0.0004

    0.0004

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