Sodium Diacetate (SDA)
Ruiheng Biotech provides high-purity Sodium Diacetate (CAS 126-96-5) in Food & Feed grades. As a leading manufacturer, we offer effective mold inhibition and preservation solutions with factory pricing and ISO-certified quality.
Sodium Diacetate (CAS No. 126-96-5), also known as SDA, is a widely used food preservative and antimicrobial agent composed of sodium acetate and acetic acid. It is effective in inhibiting molds, yeasts, and bacteria, making it a reliable solution for food preservation, animal feed protection, flavor enhancement, and industrial applications.
As a professional Sodium Diacetate manufacturer and supplier, we provide high-quality Food Grade and Feed Grade SDA with stable specifications, full batch traceability, and compliance with international standards such as GB 25538-2010, FCC, NY/T 1421-2007, and FAO/JECFA.
Our products are suitable for global export markets, offering long-term stable supply for bulk buyers, distributors, and industrial users.
Key Advantages of Our SDA
- Reliable Sodium Diacetate supplier with consistent production capacity
- Available in Food Grade, Feed Grade, and Industrial Grade
- High antimicrobial efficiency for mold and bacteria control
- Full documentation: TDS / MSDS / COA available
- Stable quality, competitive pricing, and fast delivery
- Suitable for OEM, private labeling, and long-term supply contracts
Appearance & Physical Characteristics
- Appearance:White crystalline powder or granules
- Odor: Mild acetic acid smell
- Taste:Slightly sour
- Solubility:Freely soluble in water and alcohol
- Hygroscopicity:Hygroscopic, moisture-sensitive
- Flowability:Good free-flowing performance for industrial use
High-purity crystallization ensures stable antimicrobial performance, uniform blending, and reliable preservation results in food processing and feed manufacturing.
Chemical & Physical Properties of SDA
| Property | Value |
| CAS Number | 126-96-5 |
| Molecular Formula | C₄H₇NaO₄ |
| Molecular Weight | 142.09 g/mol |
| Melting Point | ~58–60 °C (decomposes) |
| pH (10% solution, 25°C) | 4.5 – 5.0 |
| Density (20°C) | ~1.40 g/cm³ |
| Water Solubility | Highly soluble |
| Antimicrobial Activity | Optimal at pH 2.5–5.5 |
Sodium Diacetate is especially effective in acidic environments, making it ideal for acidic foods, snacks, sauces, beverages, and animal feed preservation.
Quality Grades & Specifications
Food Grade Sodium Diacetate (E262(ii))
Standards: GB 25538-2010 / FCC / FAO-JECFA
| Parameter | Specification |
| Free Acetic Acid (dry basis) | 34.9% – 41.0% |
| Sodium Acetate (dry basis) | 58.0% – 60.0% |
| Loss on Drying | ≤ 2.0% |
| pH (10% solution) | 4.5 – 5.0 |
| Easily Oxidizable Substances | ≤ 0.2% |
| Heavy Metals (as Pb) | ≤ 2 mg/kg |
| Arsenic (As) | ≤ 0.3 mg/kg |
Applications:
Food preservative for bakery products, meat products, sauces, beverages, pickled foods, snacks, and ready-to-eat meals.
Feed Grade Sodium Diacetate
Standard: NY/T 1421-2007
| Parameter | Specification |
| Sodium Diacetate Content | ≥ 56.0% |
| Moisture | ≤ 4.0% |
| pH | 4.5 – 5.0 |
| Heavy Metals (Pb) | ≤ 5 mg/kg |
| Arsenic (As) | ≤ 1 mg/kg |
Applications:
Feed mold inhibitor, shelf-life extender, microbial growth suppressor for poultry feed, livestock feed, aquaculture feed, and premix formulations.
Industrial Grade Sodium Diacetate
| Parameter | Specification |
| Purity | ≥ 95.0% |
| Moisture | ≤ 5.0% |
Applications: Industrial preservation, chemical processing, and buffer systems.
Main Applications of Sodium Diacetate
Food Preservation (SDA Preservative)
- Inhibits molds, yeasts, and spoilage bacteria
- Extends shelf life of bakery products, meat, sauces, snacks, and beverages
- Improves food safety while maintaining flavor quality
Animal Feed Preservation
- Prevents mold formation in stored feed
- Extends feed storage life by 1–3 months
- Improves feed hygiene and stability
Flavoring & Seasoning Systems
- Acts as a mild acidity regulator
- Enhances sourness in snack coatings, seasonings, instant foods, and sauces
Industrial & Chemical Applications
- Preservative agent
- pH buffer
- Chemical intermediate
Recommended Dosage (Compliant with GB 2760 & Local Regulations)
| Application | Typical Dosage |
| Animal Feed | 0.1% – 0.2% |
| Processed Meat Products | ≤ 3 g/kg |
| Cereals, Beans, Snack Foods | ≤ 4 g/kg |
| Bakery Products | ≤ 0.4% – 0.5% |
Final usage levels must comply with local food additive regulations.
Available Physical Forms
| Form | Features | Typical Use |
| Powder | Fine, fast dissolving | Food processing, R&D |
| Granular | Low dust, free-flowing | Automated feed & food production |
| Coarse Crystal | Reduced caking | Bulk industrial applications |
Packaging & Storage
Packaging Options:
- 25 kg paper-plastic composite bags
- PP woven bags with PE inner liner
- Jumbo bags (500–1000 kg)
- OEM & customized packaging available
Storage Recommendations:
- Store in a cool, dry, and well-ventilated place
- Protect from moisture and heat
- Avoid contact with strong oxidizers
Safety & Regulatory Compliance
- FDA: GRAS (Generally Recognized as Safe)
- EU Food Additive Code: E262(ii)
- FAO/WHO (JECFA): Approved
- Low toxicitywhen used within regulatory limits
Sodium Diacetate is considered safe and effective for food, feed, and industrial applications when used according to regulations.
Why Choose Us as Your Sodium Diacetate Supplier?
- Professional Sodium Diacetate manufacturer & exporter
- Stable production capacity and global shipping
- Competitive pricing for bulk Sodium Diacetate orders
- Technical support for formulation, dosage optimization, and compliance
- Fast response for samples, COA, MSDS, and inquiries
Request a Quote | Sodium Diacetate Bulk Supply
Sodium Diacetate is a bulk chemical raw material, and online retail ordering is not supported.
Contact us today to receive:
- Latest Sodium Diacetate price
- Free samples (≤500 g)
- COA / TDS / MSDSdocumentation
- Lead time, MOQ, and customized packaging options
Our sales and technical team will provide fast, professional, and transparent support for your sourcing needs.
