Di Sodium Phosphate

Disodium phosphate (DSP), or sodium hydrogen phosphate, or sodium phosphate dibasic, is the inorganic compound with the formula Na2HPO4. It is one of several sodium phosphates. The salt is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates. All are water-soluble white powders; the anhydrous salt being hygroscopic.

Synonyms
Dibasic Sodium Phosphate, Disodium Monohydrogen Phosphate, Disodium Phosphate, DSP, E 339, Neutral Sodium Phosphate, Phosphoric Acid Disodium Salt, Sodium Phosphate Dibasic
Chemical Formula
Na2HPO4
CAS Number
-

Characteristics

Molar Weight
141.96 g/mol (anhydrous) 177.99 g/mol (dihydrate) 268.07 g/mol (heptahydrate)
Melting Point
250 °C decomposes
Density
1.7 g/cc
Forms
Powder, White

Uses and Applications

Key applications

  • Buffer agent
  • Food and Nutrition
  • Water treatment
  • Personal care
  • Animal feed
  • Cosmetic products

Industries

  • Animal Nutrition
  • Water Treatment
  • Beauty & Personal Care
  • Food & Nutrition