Sodium acetate
Sodium acetate (CAS: 127-09-3), a sodium salt of acetic acid with the molecular formula CH3COONa and a molecular weight of 82.03 g/mol, is a white crystalline solid. It is widely employed as a buffering agent, a mordant in dyeing and printing textiles, and as a food additive (E262) for flavour enhancement and preservation. Its utility also extends to chemical synthesis and as a laboratory reagent.
- IUPAC
- Acetic acid sodium salt
- Synonyms
- Acetic acid sodium saltSodium ethanoateC2H3NaO2Salad AWhite saltNatriumacetat
Buffering Agent
Sodium acetate acts as a weak base, making it effective in buffer solutions to maintain a stable pH in chemical and biological systems. It is commonly used in conjunction with acetic acid to create acetate buffers.
Food Industry
Designated as E262, sodium acetate is utilised as a seasoning agent, providing a salty and vinegary flavour. It also functions as a preservative by inhibiting the growth of bacteria and extending the shelf-life of food products.
Textile Industry
In textile manufacturing, sodium acetate serves as a mordant, helping to fix dyes to fabrics. This application ensures improved colour fastness and vibrancy in dyed materials.
Chemical Synthesis
It is a valuable reagent in various organic synthesis reactions. It can be used as a source of acetate ions or as a catalyst in specific transformations.
| Molecular weight | 82.03Pd content, ~97% |
|---|---|
| Linear formula | CH3COONa |
| Assay | ≥99.0% |
| Grade | purum p.a. |
| Form | solid |
| Solubility | H2O: soluble1 M, clear, colorless |
| pH | 7.0-9.2 (25 °C, 5%) |
| Melting point | >300 °C (dec.)(lit.) |
| Concentration | 0.3 M |
| Autoignition temp | 1112 °F |
| Loss on drying | ≤1.0% loss on drying |
| Storage temperature | 2-8°C |
| Impurities tested | ≤0.0005% Phosphorus (P)<0.01% Insoluble matter |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | >250 °C / >482 °F |
| Water hazard class (WGK, DE) | 1 |
| Cation traces | Al: ≤0.0005%Ca: ≤0.005%Cu: ≤0.0005%Fe: ≤0.0005%K: ≤0.03%Mg: ≤0.0005%NH4+: ≤0.05%Pb: ≤0.001%Zn: ≤0.0005% |
| Anion traces | chloride (Cl-): ≤0.002%sulfate (SO42-): ≤0.003% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Pka  | 4.76 (acetic acid) |
|---|---|
| Uv Absorption | λ: 260 nm Amax: 0.03λ: 280 nm Amax: 0.02 |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium Acetate used for?
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Sodium acetate is used as a buffering agent, a food additive (E262) for flavour and preservation, a mordant in textile dyeing and printing, and in chemical synthesis and laboratory research.
What is the CAS number and formula for Sodium Acetate?
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The CAS number for Sodium Acetate is 127-09-3, and its linear formula is CH3COONa.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium Acetate with a purity of ≥99.0% and a grade of Purum p.a. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product documentation.
How should Sodium Acetate be handled and stored?
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Sodium Acetate should be handled with appropriate personal protective equipment, including eyeshields and gloves. Store in a cool, dry place, ideally between 2-8°C. It is combustible, with an autoignition temperature of 1112 °F.
Is Sodium Acetate a controlled substance?
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The provided data does not indicate that Sodium Acetate (CAS: 127-09-3) is a controlled substance.
How are Sodium Acetate products packaged and exported?
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Sodium Acetate is available as a solid and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical substances.
How can I request a sample or quote for Sodium Acetate?
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Please contact our sales team through the website or via direct inquiry to request a sample or obtain a quotation for Sodium Acetate.
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