Sodium Benzoate – Industrial Preservative for Food, Pharmaceutical, and Personal Care Applications
Introduction
Sodium Benzoate is the sodium salt of benzoic acid, with the chemical formula C₇H₅NaO₂. It is commonly supplied as a white crystalline powder or granules and is widely used as a preservative in suitable formulations. Sodium Benzoate helps inhibit the growth of certain yeasts, molds, and bacteria, particularly in acidic products. It is used in food and beverage processing, pharmaceutical formulations, cosmetics, personal care products, and selected industrial applications.
Industrial Applications
Sodium Benzoate is widely used in the food and beverage industry to help preserve approved products such as acidic beverages, sauces, dressings, and condiments. Its effectiveness depends on the product’s pH, formulation, storage conditions, and permitted usage levels under applicable food regulations.
In pharmaceutical manufacturing, suitable grades may be used as a preservative in certain liquid formulations. Sodium Benzoate is also used in cosmetics and personal care products where compatible preservation systems are required. Additional applications include selected chemical manufacturing processes and specialty formulations, depending on product grade and technical requirements.
Key Benefits
Sodium Benzoate provides effective preservation against certain microorganisms in suitable formulations, especially under acidic conditions. It is water-soluble, easy to incorporate into many water-based products, and available in different commercial grades. Its established use in multiple industries makes it a practical ingredient for manufacturers who need a compatible preservative or formulation component.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Sodium Benzoate |
| Chemical Formula | C₇H₅NaO₂ |
| CAS Number | 532-32-1 |
| Molecular Weight | 144.11 g/mol |
| Appearance | White crystalline powder or granules |
| Chemical Type | Sodium salt of benzoic acid |
| Solubility | Soluble in water |
| Primary Function | Preservative |
| Main Applications | Food and beverages, pharmaceuticals, cosmetics, personal care |
| Packaging | Bags or other sealed packaging, depending on grade |
| Storage | Store in a cool, dry place in tightly closed packaging |
Note: Purity, particle size, moisture content, and packaging may vary by manufacturer and grade. Confirm the supplier’s technical data sheet before purchase.
Storage and Handling
Sodium Benzoate should be stored in tightly closed, clearly labelled containers in a cool, dry, well-ventilated area. Protect the product from moisture and contamination. Avoid generating or inhaling dust, and use appropriate protective equipment in accordance with the supplier’s Safety Data Sheet (SDS). Food-grade and pharmaceutical-grade materials should be handled using suitable hygiene and quality-control procedures.
Quality and Supply
Sodium Benzoate is available in industrial, food, pharmaceutical, and other specialized grades. Buyers should verify purity, moisture content, particle size, applicable standards, and packaging requirements before ordering. For food, pharmaceutical, or cosmetic use, ensure the selected grade meets the relevant regulations and formulation requirements.
Conclusion
Sodium Benzoate is a widely used preservative valued for its ability to inhibit certain microorganisms in suitable acidic formulations. Its applications span food and beverage processing, pharmaceuticals, cosmetics, and personal care manufacturing. Selecting the correct grade and following recommended handling practices helps support product quality and reliable performance.
