Sodium Citrate

The term sodium citrate is most commonly used to refer to trisodium citrate. However, it can also refer to other sodium salts from citrate — such as disodium citrate and monosodium citrate. It is also known by its IUPAC name as trisodium 2-hydroxypropane-1,2,3-tricarboxylate, and it has the chemical formula Na3C6H5O7 and the assigned CAS Number 68-04-2. Other names for sodium citrate include citric acid, trisodium salt, and 1,2,3-propanetricarboxylic acid.


Molar Weight294.11 g/mol
Melting Point> 300 °C
Boiling PointDecomposes
Density1.7 g/cc
FormsWhite, Granular

Uses and Applications

Key applications

  • Beverage processing
  • Food additive
  • Plating
  • Flavouring agent
  • Acidifying agent
  • Pharmaceuticals
  • Detergent
  • Beauty products
  • Primers, fillers and undercoats
  • Anti-ageing products
  • Emulsifying agent


  • Cleaning
  • Cosmetics
  • Food
  • Pharma

Synonyms: Citric Acid Trisodium Salt, E 331, Sodium Citrate, Sodium Citrate Anhydrous, Trisodium Citrate, Trisodium Citrate Anhydrous

Chemical Formula: Na3C6H5O7

CAS Number: 68-04-2