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Sodium diacetate

CAS Number
126-96-5
EC Number
204-814-9
Chemical Formula
C2H4O2.1/2Na
Molecular Weight
142.09 g/mol

Description

Sodium diacetate (CAS 126-96-5 ), also designated E262ii , is a compound of sodium acetate and acetic acid used commercially as a preservative, acidulant, and flavoring agent. It delivers controlled acetic acid activity in solid form, giving formulators the functional profile of vinegar without handling liquid acid. In food manufacturing, it extends shelf life in baked goods. It is used in meat products and snack seasonings by inhibiting mold and bacterial growth while contributing a mild vinegar flavor. Snack food producers apply it as a dry seasoning component on chips. On crackers, it replicates salt-and-vinegar taste profiles with consistent dosing. As a pH buffer, it stabilizes acidic conditions in processed and packaged foods where liquid acidulants are impractical. In personal care formulations, it functions as a buffering agent and mild preservative booster in products requiring controlled acidity. This ensures stability and safety in various cosmetic applications. The product is supplied as a white crystalline powder or granules, with granular forms preferred in dry blending and seasoning applications for improved flowability and handling. Food-grade material conforming to FCC and E262ii specifications is the standard commercial offering. Technical-grade material is available for non-food industrial applications where certification is not required. Contact us for supply of Sodium diacetate Request Quote

Other Names (Synonyms)

E262ii | Acetic acid, sodium salt (2:1) | Sodium hydrogen diacetate | Sodium acid acetate | Dykon | Acid acetate | Sodium acetate, acid | Sodium hydrogen acetate

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point323-329 °C(lit.)
Density1.0184 g/cm³ (solid)
Flash Point40°C (104°F)
AppearanceWhite crystals
acetic acid odor. Decom- poses above 150C. Soluble in water
slightly soluble in alcohol
insoluble in ether. Combustible.
ColorClear colorless
Odorat 100.00?%. bland
Formsolid
Water Solubilitysoluble H2O [MER06]
slightly soluble alcohol
insoluble ether [HAW93]
Vapor Pressure0Pa at 25℃
pH7.0±0.05 (25℃)
Log P-3.72

Safety & Handling

Danger
GHS05· Corrosive

Hazard Statements

H318Causes serious eye damage

Precautionary Statements

P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P265Wash … thoroughly after handling.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29152910
UN Number2790
ADR Class8
Packing GroupII
Storage Class10 - Combustible liquids
WGK (Germany)1