Mingzhi Phosphate Chemical Co., Ltd
Home>> Featured Products>> Disodium Phosphate DSP
Sodium Phosphate Dibasic
Mingzhi Phosphate Chemical Co., Ltd.


Product Name

Disodium phosphate


Disodium hydrogen phosphate

Common Name

Disodium hydrogen orthophosphate, Sodium phosphate dibasic, Disodium hydrogen phosphate

Molecular Formula


CAS Number

7558-79-4; 10028-24-7 (dihydrate); 7782-85-6 (heptahydrate);
10039-32-4 (dodecahydrate)


Food grade

Product Name

Disodium Phosphate DSP

Disodium Phosphate Dihydrate DSP 2H2O

Disodium Phosphate Heptahydrate


Disodium Phosphate Dodecahydrate


Appearance White powder Crystalparticles Crystalparticles Crystalparticles
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
Packing & Storage
Packing 25kg net woven polypropylene bags with inner PE liner; 500kg or 1000kg FIBC bags.
Storage It 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.
Free Quote
For samples, pricing, or more information, please call us at 0086-25-52397805 or mail to info@china-phosphate.com or fill out the following form. We will respond to you as soon as possible.
Frequently Asked Questions

Q: Disodium Phosphate Properties?

A: 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.

Q: 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. It supplies the inventory of free phosphates 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.