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Information on Disodium Phosphate Disodium Phosphate is a derivative of Phosphoric Acid. Disodium Phosphate is moderately soluble in water. Disodium Phosphate is a white crystalline powder. Disodium Phosphate decomposes at 250oC. It should be stored in tightly closed containers in a Room Temperature. Synthesis / Manufacturing Process of Disodium Phosphate 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. Disodium Phosphate is manufactured by taking a reaction between Sodium Hydroxide (NaOH) and phosphoric acid (H3PO4). The resulting slurry of DSP is solidified in a granulator. |
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Uses / Application of Disodium Phosphate Disodium Phosphate is used in cream of Wheat to quicken cooking time. It is also used in conjunction with Trisodium Phosphate in many steam Boilers. It is also used in Metal Treatment & is a component of Cleaners. It is also used as a Buffer & Emulsifiers in Food application. Disodium Phosphate is also used as a Reagent & Buffer in Analytical Chemistry. |
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Phosphates
