Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: Sodium ethanoate
- Aliases: Anhydrous sodium acetate, Sodium acetate anhydrous
- CAS Number: 127-09-3
- EINECS: 204-823-8
- Molecular Formula: C2H3NaO2
- Molecular Weight: 82.03
- Chemical Classification: Organic carboxylate salt, pH buffer, food preservative, pharmaceutical excipient, industrial printing auxiliary
- Core Advantages
Anhydrous sodium carboxylate salt with mild weak alkalinity, excellent water solubility, stable chemical property. Widely used as pH buffering agent in biochemical experiments, food acidity regulator & preservative, raw material for pharmaceutical dialysis solutions, textile printing mordant and wastewater treatment agent. Low toxicity, good biocompatibility, easy to store and transport.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: White crystalline powder
- Odor: Odorless
- Solubility: Freely soluble in water; soluble in methanol; slightly soluble in ethanol; insoluble in ether, acetone, oils
- Melting Point: 324 °C
- pH (1% aqueous solution): 8.0–9.0 (weakly alkaline)
- Hygroscopy: Slightly hygroscopic under high humidity air
- Thermal characteristic: No crystal water, no efflorescence phenomenon
2.2 Chemical Properties
- Ionization characteristic: Fully dissociates into Na+ and CH3COO- in water, forms acetic acid-sodium acetate buffer system to stabilize pH 4.0–6.0
- Double decomposition reaction: Reacts with strong inorganic acids to generate acetic acid
- Thermal stability: Stable below 300℃; decomposes above melting point to produce sodium carbonate and acetone
- Acid & Alkali Stability: Stable in neutral, weak acid and weak alkaline environment; reacts violently with concentrated strong acid
- Photostability: No discoloration or decomposition under light storage
- Compatibility: Compatible with most water-soluble raw materials; incompatible with strong mineral acids
3. Main Application Fields
3.1 Biochemical & Laboratory Reagent (Core Usage)
Preparation of acetic acid buffer solution for electrophoresis, enzyme reaction, chromatographic mobile phase adjustment; standard pH calibration reagent.
3.2 Food Industry
Food grade acidity regulator, preservative, flavor enhancer for bread, pastry, pickles, beverages; inhibits mold and bacteria growth to extend shelf life.
3.3 Pharmaceutical Raw Material
Excipient for injection, oral liquid, dialysis fluid; buffer stabilizer to control formulation pH value, reduce drug irritation.
3.4 Industrial Auxiliaries
Textile printing mordant, electroplating buffering agent, concrete antifreeze, wastewater heavy metal precipitant, leather tanning auxiliary.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 127-09-3 |
| Molecular Formula | C2H3NaO2 |
| Molecular Weight | 82.03 |
| Appearance | White crystalline powder |
| Purity | Food Grade ≥99.0%; Pharma Grade ≥99.5%; Reagent Grade ≥99.8% |
| Moisture Content (KF) | ≤0.50% |
| pH (1% water solution) | 8.0 ~ 9.0 |
| Heavy Metals (Pb) | ≤10 ppm (Food/Pharma Grade ≤2 ppm) |
| Arsenic (As) | ≤2 ppm |
| Residue on Ignition | 58.0–60.0% |
| Bulk Package | 25kg PE lined fiber drum / woven bag |
| Sample Package | 1kg / 5kg sealed moisture-proof plastic bucket |
| Storage Requirements | Hermetic cool dry warehouse ≤25℃; avoid humid air and strong acid gas |
| Transportation Rule | Non-hazardous organic salt; moisture-proof sealed packaging required during transit |
| Shelf Life | 36 months under intact sealed packaging |
