Sodium Diacetate Properties, Molecular Formula, Applications - WorldOfChemicals

Sodium Diacetate Properties

Sodium Diacetate

Molecule Structure Image

Description

 

Sodium diacetate is a 1:1 mixture of sodium acetate and acetic acid but is also described as the sodium acid salt of acetic acid. Sodium diacetate crystals have free acetic acid firmly held into the crystal lattice of neutral sodium acetate , thereby masking the sharp odour of acetic acid. This helps in preserving the material without affecting its natural odour. It is generally recognized as safe ingredient (GRAS) by the US FDA, and is a generally permitted food additive in Europe and elsewhere. On prolonged exposure to an atmosphere with low relative humidity sodium diacetate tends to lose acetic acid and reverts to anhydrous sodium acetate. In solution it is split off into its components acetic acid and sodium acetate.

Chemical Properties

Appearance White crystalline powder
CAS Number 126-96-5
Chemical Composition Acetic Acid Glacial;Sodium Carbonate;Sodium Acetate;Sodium Acetate Trihydrate;Carbon Monoxide
EINECS Number 204-814-9
IUPAC Name Sodium Hydrogen Diacetate
Melting Point 323-329 °C
Molar Mass 142.09 g/mol
Molecular Formula NaC4H7O4
RTECS Number AJ4375000
Synonyms Acetic Acid, Sodium Salt;Dykon;Sodium Diacetate;Sodium Hydrogen Diacetate;SDA