Introduction of sodium benzoate
Sodium benzoate is a common type of food preservative and is the sodium salt of benzoic acid. Food manufacturers make sodium benzoate by synthesizing the compounds, sodium hydroxide and benzoic acid, together. In addition to its use as a food preservative, sodium benzoate has other roles in food production as well.
Product properties of sodium benzoate
| Technical Item | Technical Data |
| Name | Sodium benzoate |
| CAS No. | 532-32-1 |
| Boiling Point | 249.3ºC at 760 mmHg |
| Melting Point | >300 °C(lit.) |
| Molecular Formula | C7H5NaO2 |
| Molecular Weight | 144.103 |
| Flash Point | 111.4ºC |
| Density | 1.2±0.1 g/cm3 |
Applications of sodium benzoate
Sodium benzoate is primarily added to acidic foods to enhance their flavor. It can be found in foods such as pickles, sauces, jams and fruit juices. Foods that contain vinegar, such as salad dressings, typically contain very high levels of sodium benzoate. Benzene, a precursor to sodium benzoate, can be found in very small amounts naturally in some fruits, vegetables, meats, dairy products and even drinking water.
Image of sodium benzoate
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