SGS 58%~60% Sodium Acetate White Crystal For Printing And Dyeing Industry
| Attribute | Value |
|---|---|
| CAS | 6131-90-4 |
| EINECS | 204-823-8 |
| Appearance | White crystal |
| Crystalline hydrate | 3 Water crystals |
| Life span | Two years |
| Boiling point | 117.1 ℃ |
- Chemical formula: CH₃COONa
- Molecular weight: 82.03 g/mol (anhydrous matter); 136.08 g/mol (trihydrate)
- Structure: Composed of the radical acetate ion (CH₃COO⁻) and sodium ion (Na +)
- pH value: The aqueous solution is weakly alkaline, pH is about 8-9
- Appearance: Anhydrous sodium acetate: white crystalline powder. Sodium acetate trihydrate: colorless transparent crystal
- Solubility: Soluble in water, solubility increases significantly with temperature (at 20°C, about 46.5 g per 100 mL of water). Slightly soluble in ethanol, insoluble
- Melting point: Anhydrous sodium acetate: 324°C. Sodium acetate trihydrate: 58°C (dehydration decomposition)
- Density: Anhydrous sodium acetate: 1.528 g/cm³. Sodium acetate trihydrate: 1.45g/cm³
- Hygroscopic: Sodium acetate trihydrate is easy to hygroscopic, and anhydrous sodium acetate hygroscopic is low
Heated decomposition. When heated to high temperatures, sodium acetate decomposes to form sodium carbonate (Na₂CO₃) and methane (CH₄)
- (E262): Acidity regulator to improve taste and shelf life
- Preservatives: inhibit microbial growth and extend shelf life
- Flavor enhancer: enhances the flavor of , often used in snacks, condiments and canned s
- Buffer: stabilizes pH in processing and prevents acid-base fluctuations
- Buffer: Used in pharmaceutical and biological experiments to stabilize pH
- Dialysate: Used as an electrolyte component in hemodialysis
- Drug synthesis: Used as an intermediate or reactant to synthesize certain drugs
- Textile industry: Dye fixing agent and neutralizer for acidic wastewater
- Electroplating industry: Adjusts pH value of electroplating solution
- Concrete additives: Antifreeze for winter construction and retarder for setting time
Utilizes the supercooled nature of sodium acetate trihydrate to make reusable hot packs through crystallization exothermic principle.
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