• sodium acid pyrophosphate
  • sodium acid pyrophosphate
  • sodium acid pyrophosphate

Sodium Acid Pyrophosphate(SAPP)

  • Appearance: White powder
  • Assay(as Na2H2P2O7)%≥: 95.0
  • P2O5%≥: 63.0-64.0
  • PH Value: 3.5-4.5
  • Water Insoluble %≤: 1.0
  • Loss on ignition(105℃) %≤: 0.5

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■ Specifications
Product   Name :Sodium Acid Pyrophosphate(SAPP)
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℃, it will be decomposed into sodium meta phosphate.
Application:
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. 
■ Full Data
Items Industrial Grade Food Grade
Appearance White powder White powder
Assay(as Na2H2P2O7)%≥ 95.0 95.0
P2O5%≥ 63.0-64.0 63.0-64.0
PH Value 3.5-4.5 3.5-4.5
Water Insoluble %≤ 1.0 1.0
Fluoride (as F) % ≤   0.005
Heavy Metals (as Pb) % ≤   0.001
Arsenic (As)% ≤   0.0003
Loss on ignition(105℃) %≤ 0.5 0.5
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