
Sodium benzoate powder food grade
Products Specification
Specification | ||
Product Name: | Sodium Benzoate | |
CAS NO.: | 532-32-1 | |
Items | Unit | Specification |
Identification | - | White Powder or Granular |
Acidity or Alkalinity | ml | ≤0.2 |
Content (dried substance) | % | ≥99.0 |
Loss on drying | % | ≤1.5 |
Heavy metals (as Pb) | % | ≤0.01 |
Arsenic | % | ≤0.0002 |
Chloride | % | ≤0.02 |
Sulfate | % | ≤0.1 |
Oxide | - | Passes test |
Colour of solution | - | Y6 |
Phthalic acid | - | Passes test |
Total Chloride | % | ≤0.03 |
PH Value | - | 7.0~9.0 |
Lead | ppm | <2 |
Mercury | ppm | <1 |
Polyciclic acids | - | N/A |
Readily oxidable | - | N/A |
Conclusion: | The Product complies with FCC. | |
Package: | 25kg bags. | |
Storage | Store in cool, dry and clean places. |
Product introduction
Sodium Benzoate is a commonly used food preservative that inhibits microbial growth.
It is an efficient and low-cost food preservative widely used in food, pharmaceuticals, and industrial applications.
Redwood biotech provides top quality sodium benzoate powder and Sodium benzoate granular.

Chemical Properties:
Chemical Formula: C₇H₅NaO₂
Molecular Weight: 144.11 g/mol
Appearance: White granules or crystalline powder
Solubility: Easily soluble in water, slightly soluble in ethanol
Sources:Produced by the reaction of benzoic acid with sodium hydroxide.
Naturally found in some fruits (e.g., cranberries, plums), but in low concentrations.
Mechanism of Action:
Inhibits microbial growth and reproduction by disrupting their enzyme systems.
More effective in acidic environments (pH 2.5-4.0).
Applications:
Food: Used in carbonated beverages, fruit juices, sauces, pickled products, etc.
Pharmaceuticals: Used as a preservative in medicines and cosmetics.
Industrial: Used in adhesives, coatings, and other products for preservation.


Advantages:
Effective Preservation: Inhibits bacteria, yeast, and molds.
Low Cost: Relatively inexpensive, suitable for large-scale use.
Good Stability: Stable at room temperature and easy to store.
Safety:Safe when used in moderation, but excessive amounts may cause allergies or discomfort.
The acceptable daily intake (ADI) is 0-5 mg/kg body weight (FAO/WHO).
May form benzene when combined with vitamin C, so usage conditions should be carefully monitored.
Research Progress:
Alternative Research: Development of safer natural preservatives.
Toxicity Studies: Evaluation of long-term health effects.
Application Optimization: Research on synergistic effects with other preservatives.