Product name: Disodium phosphate
IUPAC name: Disodium hydrogen phosphate
Common name: Disodium hydrogen orthophosphate, Sodium phosphate dibasic, Disodium hydrogen phosphate
Molecular formula: Na₂HPO₄
CAS number: 7558-79-4; 10028-24-7 (dihydrate); 7782-85-6 (heptahydrate); 10039-32-4 (dodecahydrate)
Grade: Food Grade

Disodium Phosphate Properties:
Disodium hydrogen phosphate (Na₂HPO₄) is a sodium salt of phosphoric acid.Sodium phosphate dibasic is a white powder that is highly hygroscopic and water soluble. Disodium phosphate 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. DSP is commercially available in both the hydrated and anhydrous forms. PH of disodium hydrogen phosphate water solution is between 8.0 and 11.0.
The most common form of DSP is the disodium phosphate heptahydrate,disodium phosphate dihydrate,disodium phosphate dodecahydrate and disodium phosphate anhydrous.

Disodium Phosphate Specifications:

Product name	Disodium phosphate DSP	Disodium phosphate dihydrate DSP 2H2O	Disodium phosphate heptahydrate DSP 7H2O	Disodium phosphate dodecahydrate DSP 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 ignition %(w/w)	Max. 5.0	18.0-22.0	42.0-46.0	Max. 61.0

Disodium Phosphate Application:
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 with trisodium phosphate in many steam-boiler applications. Disodium hydrogen phosphate supplies the inventory of free phosphates to retard calcium scale formation.Monobasic and dibasic sodium phosphate is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.
Packing:
25kg net woven polypropylene bags with inner PE liner; 500kg or 1000kg FIBC bags.
Storage & Transport:
Disodium phosphate should be stored in a dry, airy and clean warehouse; kept away from moisture and hot. Furthermore, it should be stored separately from poisonous substances.