Sodium Acid Pyrophosphate(SAPP)
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.
|Assay (%) (Na2H2P2O7)||≥95.00%|
|Substances not dissolved in water(%)||≤1.0%|
|Loss on drying||≤0.5%|
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.