Sodium Benzoate
CAS Number: 532-32-1
Sodium benzoate is a widely used food preservative effective against yeasts, bacteria, and molds in acidic environments (pH < 4.5). It is typically applied at 0.05–0.1% in carbonated beverages, fruit juices, jams, and condiments. As a white, water-soluble powder, it offers excellent cost-efficiency and compatibility with most food matrices.
Technical Specifications
| appearance | White crystalline powder or granules |
| purity (%) | ≥99.0 |
| pH (1% solution) | 8.0–9.5 |
| heavy metals (ppm) | ≤10 |
| loss on drying (%) | ≤1.5 |
Applications
- Carbonated soft drinks and fruit beverages
- Jams, jellies, and fruit preserves
- Pickles and acidic condiments
- Salad dressings and sauces
- Margarine and low-pH dairy products
Key Features
- Broad-spectrum antimicrobial activity at low pH
- High water solubility for easy incorporation
- GRAS status recognized by FDA and approved by EU E211
- Excellent cost-efficiency compared to other preservatives
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CAS Number
532-32-1
Category
Food / Beverage AdditivesAvailability
In StockSample
Dispatched within 5 days