Sodium Acetate (Acetic Acid, Sodium Salt)

1. Product Overview

Sodium Acetate is the sodium salt of acetic acid, a multifunctional chemical widely used as a food additive, buffering agent, pH stabilizer, flavor enhancer, and chemical intermediate.

With its excellent water solubility, stable buffering capacity, and GRAS (Generally Recognized As Safe) status, sodium acetate is indispensable in food, pharmaceutical, biotechnology, and industrial applications.

We provide high-purity sodium acetate in multiple grades, including Food Grade, Pharmaceutical Grade, and Industrial/Technical Grade, available as anhydrous powder, trihydrate crystals, or spherical granules. All products are manufactured under ISO-certified quality management systems, with full batch traceability and complete technical documentation.

Standards & Compliance:

• China: GB 30603-2014 (Food Additive – Sodium Acetate)
• FCC: Food Chemicals Codex
• USP-NF: United States Pharmacopeia
• Eur.: European Pharmacopoeia
• JECFA / FDA: FAO/WHO approved, 21 CFR §184.1721

Key Advantages:

• Multiple grades: Food / Pharmaceutical / Industrial
• High purity with consistent performance
• Complete documentation: TDS, MSDS, and batch-specific COA
• Stable inventory for bulk orders and long-term cooperation
• Export-ready supply with regulatory support for EU, US, ASEAN, Middle East

2. Appearance & Characteristics

• Appearance: White crystalline powder or free-flowing granules (anhydrous); colorless transparent crystals (trihydrate)
• Odor: Odorless or faint vinegar aroma (moisture sensitive)
• Physical Form:Fine powder or spherical granules (low-dust options available)

Key Features:

• Non-hygroscopic if stored properly (anhydrous form may absorb moisture)
• Excellent flowability and dispersibility in aqueous systems
• Chemically stable under normal handling and processing
• Consistent buffering performance near pH 4.76, ideal for controlled-acidity systems, sauces, snacks, and pharmaceutical solutions

3. Basic Chemical & Physical Properties

Parameter	Value
CAS Number	127-09-3 (anhydrous); 6131-90-4 (trihydrate)
Molecular Formula	C₂H₃NaO₂ (anhydrous); C₂H₃NaO₂·3H₂O (trihydrate)
Molecular Weight	82.03 g/mol (anhydrous); 136.08 g/mol (trihydrate)
Appearance	White crystalline powder or granules
Solubility in Water	119 g/100 mL (0°C); 123 g/100 mL (20°C); 170 g/100 mL (100°C)
Solubility in Ethanol	Slightly soluble (~5 g/100 mL)
pH (10% solution, 25°C)	7.5 – 9.0
Melting Point	>300°C (decomposes before melting)
Density	1.528 g/cm³ (anhydrous)
Loss on Drying (Anhydrous)	≤2.0% (120°C, 4 h)

Note: Sodium acetate functions as a buffer, flavor enhancer, and preservative synergist, but unlike calcium acetate, it does not provide mineral fortification. Its solution is weakly alkaline due to acetate hydrolysis:

CH₃COO⁻ + H₂O ⇌ CH₃COOH + OH⁻

 

4. Quality Grades & Technical Specifications

Food Grade Sodium Acetate (GB 30603-2014 / FCC / JECFA / FDA §184.1721)

Parameter	Specification
Assay (dry basis)	≥98.5%
pH (10% solution)	7.5 – 9.0
Loss on Drying	≤2.0%
Water-Insoluble Matter	≤0.05%
Chlorides (Cl⁻)	≤0.02%
Sulfates (SO₄²⁻)	≤0.02%
Heavy Metals (Pb)	≤10 mg/kg
Arsenic (As)	≤3 mg/kg
Fluoride	≤0.005%

Applications:

• Acidity regulator & buffer in sauces, dressings, and processed meats
• Preservative synergist with sodium diacetate or benzoates
• Flavor enhancer in snacks, seasonings, baked goods
• Anti-browning agent in cut fruits & vegetables

Pharmaceutical Grade Sodium Acetate (USP-NF / Ph. Eur.)

Parameter	Specification
Assay	99.0 – 101.0%
pH (1:20 solution)	7.5 – 9.2
Loss on Drying	≤1.0%
Heavy Metals (Pb)	≤5 ppm
Arsenic	≤2 ppm
Residue on Ignition	≤0.1%
Microbial Limits	Meets pharmacopeial standards

Applications:

• Buffer in injectable solutions, dialysis fluids
• Component in oral rehydration salts (ORS)
• Stabilizer in lyophilized protein formulations
• Excipient in effervescent tablets

Industrial / Technical Grade Sodium Acetate

Parameter	Specification
Assay	≥98.0%
Moisture	≤3.0%
Impurities	Controlled per application

Applications:

• Catalyst or buffer in organic synthesis
• Textile dyeing mordant
• Concrete accelerator and corrosion inhibitor
• Carbon source in wastewater treatment
• Thermal storage medium (phase-change at 58°C for trihydrate)

5. Main Applications

Food Industry:

• pH control in processed foods, sauces, and pickles
• Preservative synergist for enhanced shelf life
• Flavor enhancement with mild salty-vinegar notes
• Texture stabilizer in gels and dairy analogs

Pharmaceutical & Biotechnology:

• Buffer systems in HPLC and cell culture media
• Sodium regulation in dialysis solutions
• Lyoprotectant in freeze-drying of biomolecules

Industrial & Environmental:

• Electroplating conductivity enhancer
• Rubber vulcanization retarder
• Carbon source for denitrifying bacteria
• Reusable hand warmers (trihydrate, phase-change 58°C)

6. Physical Form Options

Form	Features	Recommended Use
Fine Powder	Rapid dissolution, high surface area	Lab trials, small-batch food/pharma production
Spherical Granules	Low dust, anti-caking, free-flowing	Automated dosing in large-scale production
Crystalline Trihydrate	Stable crystal form, phase-change	Thermal energy storage, specialty chemicals

 

7. Packaging & Storage

Standard Packaging:

• 25 kg per bag, inner food-grade PE liner, outer PP woven or kraft paper bag

Optional Packaging:

• 500–1000 kg FIBC (ton bags), drums or bulk containers

Storage Conditions:

• Cool, dry, well-ventilated area
• Keep tightly sealed (anhydrous form is highly hygroscopic)
• Avoid strong acids
• Shelf Life:24 months under proper storage conditions

8. Safety & Regulatory Compliance

Authority	Status
FAO/WHO (JECFA)	Approved food additive, no ADI specified
EU	Authorized as E262(i)
U.S. FDA	GRAS under 21 CFR §184.1721
China	Permitted under GB 2760-2014
IARC	Not classifiable as carcinogenic (Group 3)
GHS	Non-hazardous; use standard PPE for dust

✅ Sodium acetate is safe for food, pharmaceutical, and industrial applications when used according to regulations.

9. Quality Assurance & Technical Support

• Full analytical testing for every batch (assay, pH, moisture, heavy metals)
• Specifications aligned with TDS and pharmacopeias
• COA, TDS, and MSDS provided with all shipments
• Batch-specific documentation available upon request
• Technical support for formulation, application, and regulatory compliance

10. Contact Us

Sodium acetate is supplied as bulk raw material (not retail).

Contact us for:

• Latest pricing and lead times
• Free samples (up to 500 g)
• Batch-specific COA, TDS, and regulatory dossiers
• Custom grades (ultra-low sulfate, special granulation, etc.)

Our experienced sales and technical team provides reliable, professional support for sourcing, formulation, and compliance — from R&D to full-scale production.