Sodium Diacetate

Sodium Diacetate is a colorless, solid salt of acetic acid that is used as a preservative and a flavoring agent as well as an antimicrobial agent.


Molar Weight142.09 g/mol
Density1.4 g/cm³ (20°C)
FormsPowder, White

Uses and Applications

Key applications

  • Preservative
  • Acidifying agent


  • Food
  • Animal Nutrition

Synonyms: sodium hydrogen diacetate, E262b, E262ii

Chemical Formula: C4H7NaO4

CAS Number: 126-96-5