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Sodium benzoate is a widely used food preservative that helps prevent the growth of mold, yeast, and some bacteria in food products. It is the sodium salt of benzoic acid and is typically produced through the neutralization of benzoic acid with sodium hydroxide. This compound is soluble in water and is often added to acidic foods and beverages to enhance their shelf life.
| Chemical formula | C7H5NaO2 |
| Purity | Minimum 99% |
| Solubility | Soluble in water |
| Appearance | White crystalline powder |
| pH range | 7-8 (1% solution) |
When selecting sodium benzoate, buyers should consider the purity level required for their specific application, as well as any relevant food safety regulations. It is also important to specify the desired packaging size and quantity, as this can affect pricing and availability. Certifications such as food-grade compliance may be necessary depending on the intended use.
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Yes, sodium benzoate is generally recognized as safe when used within recommended limits.
The maximum concentration varies by country, but it is typically around 0.1% to 0.2% in food products.
Sodium benzoate is not typically allowed in organic food products.
It should be stored in a cool, dry place away from direct sunlight.
At low concentrations, it generally does not affect the taste of food.
It is effective against many types of mold and yeast, but not all bacteria.