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Sodium acid Pyrophosphate (SAPP)

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Sodium acid Pyrophosphate (SAPP)

Food grade

Cas no.: 7758-16-9 

Molecular Formula: Na2H2P2O7 
Molecular weight: 221.95 

 

Properties:
White powder;Relative density 1.86;Soluble in water and insoluble in ethanol; If its aqueous solution is heated together with diluted inorganic acid, it will be hydrolyzed into phosphoric acid; It is hydroscopic, and when absorbing humidity it will become into a product with hexa-hydrates; If it is heated at a temperature above 220°C, it will be decomposed into sodium meta phosphate.
Uses:
As a leavening agent it is applied to roast foodstuffs to control the fermentation speed; When applied to instant noodles, it can shorten water resetting time and avoid stickiness and mushiness of the noodles; When applied to crackers or cakes, it may shorten fermentation time, lower the breakage, make the porous space in good order and therefore lengthen the shelf life.

 

Specifications

Index

Assay(as Na2H2P2O7)%≥

93-100

PH value

3.5-4.5

Water Insoluble matter % ≤

1

Fluoride (as F) ,ppm  ≤

50

Heavy Metals (as Pb) ,ppm ≤

10

As, ppm ≤

3

Pb, ppm ≤

2

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