Sodium Diacetate
CAS: 126-96-5
Category: Inorganic Chemicals
| Purity | Food Grade ≥99%; FCC Grade ≥99%; Pharmaceutical Grade ≥99%; Industrial Grade ≥98% |
| Molecular Formula | C4H7NaO4 |
| Molecular Weight | 142.09 |
| Appearance | White crystalline powder or granules with a slight acetic acid odor; freely soluble in water and hygroscopic. |
| Packaging | 25 kg/PE-lined woven bag, 25 kg kraft paper bag, 500 kg or 1,000 kg jumbo bag, or customized food-grade packaging. |
| Testing Indicators | Appearance — Visual inspection; Identification — Infrared spectroscopy (FTIR) and acetate reaction test; Assay — Acid-base titration method for total acetic acid content; Sodium content — Atomic absorption spectroscopy (AAS) or flame photometry; Moisture — Karl Fischer titration or loss on drying method; pH — Measurement of aqueous solution with calibrated pH meter; Free acetic acid — Titration method; Heavy metals — ICP-MS or colorimetric method; Chloride and sulfate — Ion chromatography or standard chemical analysis methods. |
| Storage Notes | Store in a cool, dry, and well-ventilated warehouse. Keep containers tightly sealed and protected from moisture, heat, and direct sunlight. Avoid storage with strong acids, strong bases, and oxidizing agents. Because of its hygroscopic nature, minimize exposure to humid air. |
| Lead Time | 10 days |
Sodium diacetate is a molecular compound of sodium acetate and acetic acid widely used as a food preservative, acidity regulator, and antimicrobial agent. It is commonly applied in bakery products, meat processing, dairy products, animal feed preservation, and agricultural applications. It is also used as a buffering agent and acetate source in chemical and biochemical applications.