Pure Sodium Benzoate Powder

This product is a high-purity sodium benzoate powder (food/personal care grade; CAS No.: 532-32-1; Molecular Formula: C₇H₅NaO₂). It is manufactured using benzoic acid and food-grade soda ash through a standardized chemical process comprising neutralization, decolorization and filtration, concentration and crystallization, and aseptic drying and pulverization. Free from excessive heavy metals or harmful by-product residues, it is the most widely used safe preservative for acidic systems globally.
The finished product appears as a pure white, uniform, fine crystalline powder; it is free-flowing and dispersible, with no caking or discoloration (yellow or black spots). It possesses a faint, characteristic benzaldehyde odor and is readily soluble in water and ethanol. Its aqueous solution is weakly alkaline and remains clear, free from turbidity or sediment. It exhibits outstanding broad-spectrum antimicrobial activity, peaking in efficacy within the pH range of 2.5–4.0, where it effectively inhibits the proliferation of yeasts, molds, and various spoilage bacteria, thereby extending product shelf life.
With a stable purity of ≥99.0% and strict control over critical parameters-such as heavy metals, free acid content, loss on drying, and microbial limits-the product is manufactured in a fully enclosed, automated, and temperature-controlled facility. Batch-to-batch quality consistency is exceptional, making it suitable for export across diverse sectors, including food and beverages, sauces and pickled products, personal care and hygiene, pharmaceutical preparations, and industrial preservation.

1. Sodium benzoate content: ≥99.0%
2. Loss on drying: ≤1.5%
3. Free benzoic acid: ≤0.20%
4. pH (10% aqueous solution): 8.0 ~ 10.5
5. Heavy metals (Pb): ≤2 mg/kg
6. Arsenic (As): ≤1 mg/kg
7. Chloride: ≤0.10%
8. Sulfate: ≤0.05%
9. Water-insoluble matter: ≤0.02%

1. Total aerobic microbial count: ≤100 CFU/g

2. Molds and yeasts: ≤10 CFU/g

3. Escherichia coli: Negative

4. Salmonella: Negative

5. Staphylococcus aureus: Negative

Standard Packaging: 25 kg PE-lined woven bags; 25 kg sealed fiber drums
Customization Options: Neutral packaging (no Chinese text), OEM private labeling, custom outer carton printing
Storage Conditions: Store in a sealed container within a cool, dry, and well-ventilated warehouse; keep away from acidic materials, oxidizing agents, and environments with high heat or humidity
Shelf Life: 24 months (unopened, under standard storage conditions)