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Information on Sodium Acid PyroPhosphate Sodium Acid PyroPhosphate is a derivative of Phosphoric Acid. Sodium Acid Pyro Phosphate is moderately soluble in water. Sodium Acid Pyro Phosphate is a white crystalline powder with a melting point in excess of 600oC. It should be stored in tightly closed containers in a Room Temperature. Synthesis / Manufacturing Process of Sodium Acid PyroPhosphate The major raw material to all the phosphates is Phosphoric Acid. Phosphoric Acid is manufactured from Rock Phosphate. Phosphate rock is fed to a series of reactors along with recycled phosphoric acid from the process. The phosphoric acid-fluoroapatite slurry is mixed with sulphuric acid which is added to the reactor series as a leaching agent. After completing the reaction series, the process stream is washed with evaporator condensate while being forced through a filter. The filter cake is composed primarily of gypsum (CaSO4 2H2O). The Phosphoric Acid is concentrated to 75-100% by a series of evaporators and then cooled. Sodium Acid PyroPhosphate is manufactured by taking a reaction between Sodium Carbonate & Phosphoric Acid, followed by heating of the resulting Sodium Phosphate at 220oC. |
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Uses / Application of Sodium Acid Pyro Phosphate Sodium Acid Pyro Phosphate is used as chelating agent or buffering agent in many Food & Industrial applications. It is used to remove Iron stains during processing of leather. It is used as a dispersant in oil well drilling application. |
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Phosphates
