CAS 7320 34 5 Anhydrous Tetrapotassium Pyrophosphate TKPP For Nutrition Fortifiers

Potassium diphosphate is an inorganic substance with molecular formula of k4p2o7 and molecular weight of 330.33. It is white powder or block, soluble in water but insoluble in ethanol. The aqueous solution is alkaline. The solubility of 100g water is 187G at 25 ℃

Application:

In industry, it is used for cyanide free electroplating, surface treatment, high-grade detergent, paint, detergent, dispersant, buffer, etc; Food grade emulsifier, tissue improver, chelating agent, quality improver, etc

GB 2760-96: meat products 1g / kg; Fruits and vegetables peeling GMP. FAO / who (1984: g / kg): instant broth and soup, the total phosphate is 1000mg / kg (calculated by P2O5); The total phosphate of processed cheese is 9 (based on phosphorus); Lunch meat 3 (based on P2O5); Frozen perch, sole, Atlantic cod, haddock, COD, shrimp or prawn 5 (based on P2O5); Cooked pork forelegs, cooked ham, cooked minced meat 3 (based on anhydrous matter).

In the neutralization calcination method: 30% food grade phosphoric acid is added into the neutralizer, and food grade caustic potash solution is slowly added under stirring for neutralization reaction. The pH value should be controlled at 8.4. After the reaction, the solution is heated and activated carbon is added for decolorization. The insoluble matter is removed by filtration. The clarified filtrate is heated to 120-124 ℃ for evaporation concentration, cooled to below 20 ℃ for crystallization, and centrifuged, Potassium dihydrogen phosphate trihydrate is obtained, heated to 120-130 ℃ to remove the crystal water and turn into anhydrous potassium dihydrogen phosphate, which is added to the calciner for calcination polymerization at 500-600 ℃ and cooled to produce edible potassium pyrophosphate products.

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