SODIUM BENZOATE
CAS 532-32-1
Chemical Formula C7H5NaO2
Molecular Weight 144.11 g/mol
Sodium benzoate is a widely used preservative in the food, beverage, cosmetic, and pharmaceutical industries.
It is a sodium salt of benzoic acid and is effective in inhibiting the growth of bacteria, yeast, and fungi, which is why it is used to extend the shelf life of various products.
Industrial Uses
-
Food and Beverage Industry :
- Sodium benzoate is widely used as a preservative in various foods and beverages, including soft drinks, fruit juices, pickles, sauces, jams, and salad dressings. It helps prevent the growth of harmful bacteria, yeast, and molds.
-
Cosmetics and Personal Care :
- In cosmetics, sodium benzoate is used to preserve products like shampoos, lotions, deodorants, and creams. It ensures that these products remain safe and effective over time by preventing microbial contamination.
-
Pharmaceuticals :
- Sodium benzoate is used in some pharmaceutical formulations, such as syrups and liquid medications, to prevent microbial growth and extend shelf life. It also serves as an excipient in some drugs.
Specifications
| CAS No | 532-32-1 |
|---|---|
| EC Number | 208-534-8 |
| Composition | Sodium benzoate is composed of the sodium salt of benzoic acid (C6H5COONa), synthesized by neutralizing benzoic acid with sodium hydroxide or sodium carbonate. |
| Molecular Weight | 144.11 g/mol |
| Molecular Formula | C7H5NaO2 |
| Form | White crystalline powder or granular form |
| Color | White to off-white |
| Odor | Odorless or faintly sweet |
| Melting point | 300°C |
| Density | 1.44 g/cm³ |
| Flash point | Not flammable under normal conditions |
| Ignition temperature | Approximately 500°C |