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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 220ºC, it will be decomposed into sodium meta phosphate.
Sodium acid pyrophosphate as a leavening agent in baked foods sodium sodium to control the fermentation speed, for instant noodles, reduce product time and avoid complex viscosity of water. Sodium acid pyrophosphate pastry for biscuits, shorten the fermentation time, reduce product breakage, loose gap neatly, Sodium acid pyrophosphate extended storage period.Used as detergent, medicine, toothpaste stabilizer, water softener, boiler scale remover, metal ion chelating agent, oil well mud regulator, and used for electroplating, electrolysis, plant fiber bleaching, wool degreasing, etc.
1. For Roasted foodstuff,SAPP is widely applied as a leavening agent to roast foodstuffs to control the fermentation speed.
2. For instant noodles,it is applied to reduce the time of rehydration of finished products and keep the noold chewy and complete;
3. For for biscuits and pastries,it is used to shorten the fermentation time, reduce the rate of product damage, loose and neat space, and extend the storage period.