First, the chemical name: potassium pyrophosphate Second, the formula: K4P2O7 Third, MW: 330.34 four, CAS: 7320-34-5 five properties: anhydrous potassium pyrophosphate as a white powder, the relative density of 2.534, melting point 1109 ℃, hygroscopic deliquescence, soluble in water insoluble in ethanol, 25 ℃ when 100 g of water was dissolved 187 g, energy and alkaline earth metal ions and heavy metal chelation. Six Uses: mainly used as an emulsifier in food processing, quality improver, chelating agents, pasta alkaline agent. Can be used for quick-frozen fresh seafood, water and quality improvement; in the meat processing and other phosphate compound with better results; enhance expansion of ice cream, can improve the noodles, taste cakes, cheese prevent aging. 7, Packing: lined with polyethylene plastic bag, coat plastic woven bag of 25Kg. Eight, storage and transport: It should be stored in a dry, ventilated and clean warehouse, kept away from moisture, heat, transport to prevent rain and moisture, should be stored separately from poisonous substances. Quality Index Specification FCC V content (burning dry), w% ≥ Content 95 Loss on ignition, w% ≤ Loss on Ignition 0.5 fluorides (as F), mg / Kg ≤ Fluoride 10 lead (Pb), mg / Kg ≤ Pb 2 water insolubles, w%, ≤ Water Insolubles 0.2 arsenic (As), mg / Kg ≤ As 3