Model: CAS NO: 7758-16-9
Price: CNY 1090 / MT
Min. Order: 1 MT
SODIUM ACID PYROPHOSPHATESAPPSodium Acid Pyrophosphate(SAPP)
Chemical formula : Na2H2P2O7
Molecular weight: 221.95 
CAS NO: 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℃, 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.
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
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