Mono Sodium Phosphate

Monosodium phosphate (MSP), also known as monobasic sodium phosphate and sodium dihydrogen phosphate, is an inorganic compound of sodium with a dihydrogen phosphate (H2PO4−) anion. One of many sodium phosphates, it is a common industrial chemical. The salt exists in an anhydrous form, as well as mono- and dihydrates.

Synonyms
E 339, Monosodium Orthophosphate, Monosodium Phosphate, MSP, Phosphoric Acid Monosodium Salt, Sodium Biphosphate, Sodium Dihydrogen Orthophosphate, Sodium Dihydrogen Phosphate, Sodium Phosphate, Sodium Phosphate Monobasic
Chemical Formula
NaH2PO4
CAS Number
7558-80-7

Characteristics

Molar Weight
119.98 g/mol
Flash Point
Non-flammable
Density
2.36 g/cc
Forms
White, Granules

Uses and Applications

Key applications

  • Buffer agent
  • Food and Nutrition
  • Baking
  • Water treatment
  • Animal feed
  • Cosmetic products
  • Emulsifying agent