Sodium acid pyrophosphate(app)

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Chemical formula :  Na2H2P2O7
Molecular weight: 221.95
CAS Number: 7758-16-9
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°ś, 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 25 kg,50kg,1000kg net bags, store at a cool, dry and well ventilated place.
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°ś) %°‹
0.5
0.5

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