Sodium Acid Pyrophosphate(SAPP)
Chemical formula :Na2H2P2O7
Molecular Weight:221.95
CAS Number:7758-16-9
Guaranteed Technical Specifications
NO |
Specifications |
Industrial Grade |
Food Grade |
1 |
Appearance |
White powder |
White powder |
2 |
Assay(as Na2H2P2O7)%≥ |
95.0 |
95.0 |
3 |
P2O5%≥ |
63.0-64.0 |
63.0-64.0 |
4 |
PH Value |
3.5-4.5 |
3.5-4.5 |
5 |
Water Insoluble %≤ |
1.0 |
1.0 |
6 |
Fluoride (as F) % ≤ |
|
0.005 |
7 |
Heavy Metals (as Pb) % ≤ |
|
0.001 |
8 |
Arsenic (As)% ≤ |
|
0.0003 |
9 |
Loss on ignition(105℃) %≤ |
0.5 |
0.5 |
Properties
White powder or granular;Relative density 1.86g/cm3;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℃, 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.
Packing and storage
Packed in 25kg,50kg,1000kgnet bage,store at a cool, dry and well ventilated place.
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