Sodium Acetate Anhydrous (CAS 127-09-3), chemically identified as the sodium salt of acetic acid, is a hygroscopic organic salt functioning as a critical buffering agent and neutralization medium in textile dyeing operations and food preservation. This white crystalline powder, technically referred to as sodium ethanoate, acts to maintain precise pH levels in acid baths, preventing the premature precipitation of aniline dyes, and serves as a flavoring agent (E262) imparting the characteristic "salt and vinegar" taste in snack foods. We provide bulk supply of this high-purity industrial ingredient with competitive factory pricing to ensure process stability for textile mills and food processors. Our production guarantees low heavy metal content and high assay (>99%), making MSDS, TDS, COA available alongside customized specifications to meet technical or food grade requirements.
Sodium Acetate Anhydrous CAS 127-09-3
- CAS: 127-09-3
- Synonyms: Sodium ethanoate, Acetic acid sodium salt, Anhydrous sodium acetate, Natrium aceticum, Sodium acetate powder
- Einecs: 204-823-8
- Molecular Formula: C2H3NaO2
- Grade: Industrial grade ≥99.0%; Food/FCC grade available on request
- Package: 25 kg PP woven bags with PE inner liner; 500–1000 kg jumbo bags or customized packaging
Product Description
Product Overview
Sodium Acetate (CAS 127-09-3) is the anhydrous sodium salt of acetic acid, supplied as a white, free-flowing crystalline powder. It is widely used as a buffering agent, pH regulator and process auxiliary in food, pharmaceutical, textile, leather and chemical industries. Stable quality and good solubility make it suitable for both laboratory and industrial-scale applications.
📧 Email: info@industrochem.com – Please send us your required grade, specification and quantity to receive a fast quotation and COA.
Physicochemical Properties
| Item | Typical value (anhydrous) |
|---|---|
| Chemical name | Sodium acetate, anhydrous |
| CAS No. | 127-09-3 |
| EINECS No. | 204-823-8 |
| Molecular formula | C₂H₃NaO₂ |
| Molecular weight | 82.03 g/mol |
| Appearance | White, free-flowing crystalline powder |
| Assay (as CH₃COONa, on dry basis) | ≥ 99.0% |
| pH (5% aqueous solution, 25 °C) | 8.5 – 9.5 |
| Density (true, 20 °C) | approx. 1.52 – 1.53 g/cm³ |
| Melting point (anhydrous) | approx. 324 °C |
| Boiling behavior | Decomposes on strong heating |
| Solubility in water (20 °C) | Freely soluble (high solubility) |
| Solubility in ethanol | Slightly soluble |
| Hygroscopicity | Slightly hygroscopic; absorbs moisture in air |
| Odor | Nearly odorless; slight acetic odor when heated |
| Stability | Stable under normal conditions; aqueous solution is weakly alkaline |
(Exact limits can be adjusted to match your internal COA/standard.)
Applications
1. Food & Beverage Industry
- Used as a buffering agent and acidity regulator (E262) in sauces, seasonings, bakery and processed foods.
- Helps stabilize pH and improve flavor profile when combined with acetic acid.
2. Pharmaceutical & Biotech
- Component of buffer solutions in biochemical and pharmaceutical formulations.
- Used in DNA/RNA precipitation and purification as sodium acetate buffer in laboratories.
3. Textile & Dyeing
- Applied as a pH regulator and neutralizing agent in textile dyeing and printing processes.
- Helps control dye uptake and improve color fastness while neutralizing residual acids.
4. Leather Tanning & Chemical Processing
- Acts as a buffer and masking agent in chrome tanning baths.
- Used as an intermediate and auxiliary in organic synthesis and various chemical processes.
5. Construction & Concrete Additives
- Can be formulated as part of concrete surface treatments and de-icing additives, helping to reduce water penetration and improve durability.
If you have a special application (e.g. pharmaceutical, high-purity analytical grade or specific impurity limits), please send your detailed requirement to info@industrochem.com so we can match the right grade and specification.
For the corresponding parent acid raw material, see Glacial Acetic Acid.
Storage Conditions
- Store in a cool, dry and well-ventilated warehouse.
- Keep bags tightly closed to avoid moisture absorption and caking.
- Avoid direct sunlight and keep away from heat sources.
- Store separately from strong acids and strong oxidizing agents.
- Recommended shelf life: 24 months from production date in unopened original packaging.
Safety Precautions
- Sodium acetate is generally considered of low acute toxicity, but dust may cause slight irritation.
- Avoid inhalation of dust and contact with eyes or prolonged skin contact.
- Wear appropriate PPE during handling: dust mask or respirator, safety glasses and gloves.
- In case of contact with eyes, rinse immediately with plenty of water and seek medical advice if irritation persists.
- Avoid eating, drinking or smoking while handling the product; wash hands thoroughly after use.
- For detailed hazard information, please refer to the product Safety Data Sheet (SDS).
📧 Email: info@industrochem.com – Contact us for COA, SDS and tailored specifications for your application.
FAQ - Technical & Supply Chain
-
Q:
What is Sodium Acetate Anhydrous CAS 127-09-3?
A: Sodium acetate anhydrous is the water-free sodium salt of acetic acid. It is a white crystalline or granular powder used as a buffer, food additive, synthesis reagent and industrial processing aid. -
Q:
Why choose the anhydrous form instead of sodium acetate trihydrate?
A: The anhydrous form contains more acetate per unit weight and introduces no water of crystallization. It is preferred in moisture-sensitive reactions, non-aqueous systems and applications where a higher active concentration is required. -
Q:
What are the main applications?
A: It is used in pH buffering, food preservation and flavor systems, pharmaceutical formulations, textile neutralization and dyeing, leather tanning, electroplating, photography, water treatment and laboratory synthesis. -
Q:
Why is sodium acetate used for neutralizing strong acid streams?
A: Sodium acetate is a mild base and conjugate base of acetic acid. It neutralizes strong mineral acids more gently than concentrated caustic soda and helps maintain a controlled pH, which is useful in textile and finishing processes. -
Q:
Is this product suitable for food use?
A: The standard listing is industrial grade with assay at least 99.0%. Food/FCC grade is available on request, and the intended food application should be confirmed with the supplier along with the appropriate grade and documentation. -
Q:
Which packaging is available?
A: It is supplied in 25 kg PP woven bags with a PE inner liner, with 500-1000 kg jumbo bags or customized packaging available on request. -
Q:
What specifications should be checked before ordering?
A: Confirm grade, assay, water, pH, chloride, sulfate, heavy metals, free alkali and any food-grade or microbial requirements. Request the current batch analysis, technical data and safety information before purchase. -
Q:
How should sodium acetate anhydrous be stored and handled?
A: Store in tightly closed containers in a cool, dry, ventilated area away from moisture, strong oxidizers and incompatible materials. Use dust-control measures and suitable PPE, and follow the safety information for handling and disposal.
Ordering & Documentation
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Documents
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Quotation
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Sample & Supply
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Storage & Shipping
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