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🧪 Sodium Benzoate

Sodium Benzoate | INCI: Sodium Benzoate | CAS: 532-32-1

INCI Information

INCI Name
Sodium Benzoate
Common Name
Sodium Benzoate
CAS Number
532-32-1
Category
Preservative
Molecular Formula
C₇H₅NaO₂
Molecular Weight
144.11 g/mol
Appearance
White, crystalline powder
Solubility
Soluble in water (66 g/100ml at 20°C)
Typical Concentration
0.1% – 0.5% (max 1% in EU)
pH Range
Effective at pH < 5.5
Functions:
PreservativeAntimicrobialpH-dependent
Available Purity Grades:
  • 99.0%
  • 99.5% (Food/Cosmetic)
  • 99.9% (Pharma)

💰 Indicative Price Range (Bulk)

Typical B2B pricing across verified suppliers
$2 – $6 $/kg
Prices vary by purity, MOQ, and order volume. Always request formal quotes.

📖 About Sodium Benzoate

Sodium Benzoate is a classic water-phase preservative effective against yeasts and molds. It's pH-dependent (works best below pH 5.5) and often paired with Potassium Sorbate for broad-spectrum protection.

🛒 Purchasing Guide & Tips

❓ Frequently Asked Questions

❓ Is Sodium Benzoate natural?

It occurs naturally in cranberries, prunes, and cinnamon, but commercial production is synthetic.

❓ Why does my product smell after adding it?

At high concentrations (>0.5%), it can have a slight aromatic odor. Use the minimum effective concentration.

❓ Can I use it in hot process?

Yes, but add after cooling to <60°C to prevent degradation.

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