Product Name: Sodium Dehydroacetate
Synonyms: Sodium 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione, Sodium deacetate, SDA
Molecular Formula: C?H?NaO?
Molecular Weight: 190.13 g/mol
CAS No.: 4418-26-2
E Number (Food Grade): E266

1. Product Description

Sodium Dehydroacetate is the sodium salt of dehydroacetic acid, widely used as a preservative with strong antifungal and antibacterial properties. It is stable over a wide pH range and exhibits low volatility. Available in both Food Grade (complying with FCC/EU regulations) and Industrial Grade (for non-food applications).

2. Specifications

3. Chemical & Physical Properties

• Solubility: Soluble in water and ethanol, insoluble in ether and chloroform

• Melting Point: 220 – 230 °C (decomposes)

• Density: Approx. 1.45 g/cm3

• Stability: Stable under normal storage conditions; decomposes under strong acid/alkali

4. Applications

Food Grade (E266)

• Preservative in baked goods, soy sauce, pickles, condiments

• Antifungal agent in beverages, fruit products, meat products

• Shelf-life extender in dairy and fermented products

• Typical dosage: 0.05–0.1% (max limit regulated by local food laws)

Industrial Grade

• Preservation of cosmetics, shampoos, creams, and lotions

• Fungicide in coatings, paints, and adhesives

• Preservation of leather, textiles, paper products

• Antimicrobial agent in pharmaceutical excipients (non-ingestible uses)

5. Regulatory Compliance

• Food Grade: Meets FCC, GB 25548-2010, EU Regulation (EC) No 1333/2008

• Industrial Grade: Meets in-house QC standards, not intended for direct food consumption

• Complies with relevant REACH registration requirements

6. Packaging

• Food Grade: 25 kg net in food-grade fiber drums or kraft paper bags with PE liner

• Industrial Grade: 25 kg woven bags or fiber drums with PE liner

• Custom packaging available upon request

7. Storage & Shelf Life

• Store in a cool, dry, well-ventilated area away from direct sunlight and moisture

• Keep containers tightly closed when not in use

• Shelf life: 24 months from production date under recommended storage

8. Safety & Handling

• Low acute toxicity; avoid inhalation of dust

• Use gloves, masks, and protective clothing during handling

• Avoid contact with strong acids or oxidizing agents

• Refer to SDS for detailed toxicological and ecological information

9. Typical Quality Control Test Methods

• Purity: HPLC or titration method

• Moisture: Gravimetric analysis at 105 °C

• pH: pH meter measurement in 1% aqueous solution

• Heavy Metals: ICP-MS or AAS analysis

• Identification: IR spectroscopy and chemical reaction tests