White monoclinic crystal powder, it is soluble in water，insoluble in ethanol. Its water solution is alkalic. It is liable to deliquesce by moisture in the air.
Quality standards
GB25557-2010,FCC-V
Name of index
GB25557-2010
FCC-V
Sodium Pyrophosphate 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
Uses
In food industry, used as quality improver, applied to can, fruit drinks, milk product, bean milk and so on.
Packing
In 25kg composite plastic woven/paper bag with PE liner.
Storage and transport
Storage and transport: It should be stored in a dry, ventilative and clean warehouse; kept away from moisture, heat and stored separately from poisonous substances. Handled with care, so as to avoid damage to the packing bags.
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