Sodium benzoate, granulate
General Product Information
| Article. | Sodium benzoate, granulate |
| Synonyms | E211, Benzoate of soda |
| CAS No. | 532-32-1 |
| EEG No. | – |
| EINECS No. | 208-534-8 |
| IMO | – |
| Tariff-Code | 2916310090 |
| UN No. | – |
| VLG/ADR | – |
Description
Sodium benzoate granulate is the sodium salt of benzoic acid produced to British Pharmacopoeia (BP) specifications. It comes as a white, crystalline or granular powder that is odorless and has a slightly salty taste. Sodium benzoate is known for its preservative properties and is widely used in industries as diverse as food, pharmaceuticals and cosmetics.
Characteristics
- Grade: Pharmaceutical.
- BP Grade: High purity and meets stricter standards for solvent residues and other contaminants.
- High purity: Meets pharmaceutical requirements for use in medicinal applications.
- Odor: Odorless.
- Flavor: Slightly salty.
Physical & Chemical Properties
| Chemical Structure | C7H5O2Na |
| Molar Weight | 144.11 g/mol |
| Melting Point | >300 °C (decomposes at heating) |
| Boiling Point | – |
| Solubility | Highly soluble in water. |
| Density | 1.44-1.50 g/cm³ |
| Refractive Index | – |
| pH | 7.0-8.5 (on 1% solution) |
| Color | White |
| Shape | Crystalline grains (granules) |
Applications
Sodium benzoate is applied in various ways, for instance:
1. Pharmaceutical Industry
Applications in oral liquids, syrups and topical products as a preservative.
2. Cosmetics & Personal Care
In shampoos, lotions and creams as an antimicrobial ingredient.
3. Food Industry
Used as a preservative (as food additive E211) in products such as soft drinks, fruit juices, marinades and pickles. It inhibits the growth of fungi and bacteria.
4. Technical Applications
Also used as a corrosion inhibitor in antifreeze and coolants.
Interessing Links
- British Pharmacopoeia (BP) of the Medicines and Healthcare products Regulatory Agency (MHRA)
- Codex Alimentarius (FAO/WHO) – Guidelines and standards for food additives and food ingredients.
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- European Food Information Council (EFIC) – Food facts for healthy choices.
- European Food Safety Authority (EFSA) – Information about safety and application of food additives.
- European Pharmacopoeia (EP) of the European Directorate for the Quality of Medicines & HealthCare.
- PubChem – Sodium Benzoate of the National Library of Medicine by the National Center for Biotechnology Information.
- U.S. Pharmacopoeia (USP)
- Wikipedia – Sodium benzoate