Disodium Phosphate (Na2HPO4, DSP) is a sodium salt of phosphoric acid. It is a white powder that is highly hygroscopic and water soluble. It is therefore used commercially as an anti-caking additive in powdered products. It is also known as disodium hydrogen orthophosphate, sodium hydrogen phosphate or sodium phosphate dibasic. It is commercially available in both the hydrated and anhydrous forms.
Other uses
DSP can be used in cream of wheat to quicken cook time. It is used as an anti oxidant synergist, stabilizer and buffering agent in food. It is also used as an emulsifier in the manufacture of pasteurized processed cheese. It is added to powdered milk to prevent gelation.
It is used in conjunction with trisodium phosphate in many steam boiler applications. It supplies the inventory of free phosphates to retard calcium scale formation. Typical products include processed meat products, processed cheese products, powdered milk, toothpaste.
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Specification |
DSP Crystals |
DSP Anhydrous |
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P2O5 content Assay Loss on Drying pH of 2% Solution Insolubles Packing |
19% 98% 57-61% 8.9-9.5 0.025% 50 Kg HDPE Bags |
49.5% 98.0% 1% 8.9-9.5 0.05% 50 Kg HDPE Bags |