Disodium hydrogen phosphate (Na2HPO4) is a sodium salt of Phosphoric Acid. DSP is a white powder that is highly hygroscopic and water soluble. Sodium phosphate dibasic is therefore used commercially as an anti-caking additive in powdered products. DSP is also known as disodium hydrogen orthophosphate, sodium hydrogen phosphate or sodium phosphate dibasic. Disodium Phosphate is commercially available in both the hydrated and Anhydrous forms. PH of disodium hydrogen phosphate water solution is beTween 8.0 and 11.0.

Disodium Phosphate is used in Cream of Wheat to quicken cook time, as described on the ingredients panel of the product package.Disodium Phosphate is used in conjunction withTrisodium Phosphate in many steam-boiler applications. It supplies the inventory of freePhosphates to retard calcium scale formation.Monobasic sodium phosphate and dibasic sodium phosphate is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

 

Specification:

 

Product Name	Disodium PhosphateDSP	Disodium Phosphate Dihydrate DSP 2H2O	Disodium Phosphate HeptahydrateDSP 7H2O	Disodium Phosphate DodecahydrateDSP 12H2O
Appearance	White powder	Crystal particles	Crystal particles	Crystal particles
Disodium Phosphate Na2HPO4(on dried material) %(w/w)	min 98.0	min 98.0	min 98.0	min 98.0
Water Insoluble %(w/w)	max  0.2	max  0.2	max  0.2	max   0.2
Arsenic (As) mg/kg	max 3	max 3	max 3	max 3
Heavy Metal (as Pb) mg/kg	max 10	max 10	max 10	max 10
Fluoride (as F) mg/kg	max 50	max 50	max 50	max 50
Loss on lgnition %(w/w)	max 5.0	18.0-22.0	42.0-46.0	max 61.0