|Jmol-3D images||Image 1|
|Molar mass||141.96 g/mol (anhydrous)
268.07 g/mol (heptahydrate)
|Appearance||White crystalline solid|
250 ºC decomp.
|Solubility in water||7.7 g/100 ml (20 ºC)
11.8 g/100 mL (25 °C, heptahydrate)
|EU Index||Not listed|
|Other anions||sodium phosphite|
|Other cations||Dipotassium phosphate
|Related compounds||Monosodium phosphate
| (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Disodium hydrogen phosphate (Na2HPO4) 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. pH of disodium hydrogen phosphate water solution is between 8.0 and 11.0, meaning it is basic.
- Disodium phosphate is used in Cream of Wheat to quicken cook time, and Jell-O Instant Pudding for thickening, 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 and dibasic sodium phosphate is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.
|This inorganic compound-related article is a stub. You can help Wikipedia by expanding it.|