Sodium Benzoate is a widely used organic salt preservative and functional additive, recognized for its effective antimicrobial properties, safety, and cost-effectiveness. Its activity is pH-dependent, with optimal efficacy in acidic environments. While traditionally a staple in food preservation, its applications have expanded to pharmaceuticals, industrial fluids, and material protection. Production typically involves the neutralization of benzoic acid with sodium hydroxide or sodium carbonate.

❋ Aliases: Benzoic Acid, Sodium Salt
❋ English Name: Sodium Benzoate
❋ Chemical Formula: C₇H₅NaO₂
❋ Molecular Weight: 144.11
❋ CAS Number: 532-32-1

Key Properties: Effective preservative, pH-dependent activity (best below 4.5), highly water-soluble, safe for use in regulated applications.

Advanced Application Scenarios

1. "Guardian of Freshness" in Food & Beverage

• Primarily used in acidic beverages like carbonated soft drinks and fruit juices to inhibit yeast and mold growth.

• Extends the shelf life of high-acid products such as pickles, salad dressings, and syrups.

2. "Formulation Protector" in Pharmaceuticals & Cosmetics

• Serves as a preservative in liquid medications, especially syrups and oral suspensions, to prevent microbial contamination.

• Used in certain cosmetic and personal care products (e.g., lotions, mouthwashes) to ensure product safety and stability.

3. "Inhibitor of Degradation" in Industrial Applications

• Acts as a corrosion inhibitor in automotive antifreeze and coolant formulations.

• Used as a biocide in water-based industrial fluids, such as metalworking coolants and adhesives, to prevent spoilage.

4. "Emerging Functionality" in Material Science

• Investigated as a potential mild corrosion inhibitor for certain metals in specific environments.

• Studied for its use as an additive in polymer emulsions to provide in-can preservation.

Technological Breakthroughs and Sustainable Development

Production & Purity

• Modern crystallization techniques ensure a consistent, high-purity product with low impurity levels, meeting stringent pharmacopoeial (USP, Ph. Eur.) and food-grade (FCC) standards.

• Process optimization focuses on reducing energy consumption and waste generation during synthesis.

Synergistic Formulations

• Research and development focus on creating synergistic preservative blends with other agents (e.g., potassium sorbate) to broaden the antimicrobial spectrum and reduce required concentrations.

Sustainability & Regulatory Compliance

• Sourcing of benzoic acid from both synthetic and natural origins (e.g., from gum benzoin) to meet diverse market demands, including preferences for "natural" preservatives.

• Full compliance with global regulatory standards (FDA, EFSA, JECFA) ensures safe use in intended applications.

Quality & Safety

• Implementation of advanced analytical methods (HPLC) for precise quality control and batch-to-batch consistency.

• Comprehensive toxicological profiles support its safe use within established acceptable daily intake (ADI) levels.

Technical Advantages

Quality Advantages

• Assay (on dried basis): 99.0 - 100.5%

• Clarity and Color of Solution: Passes test

• Heavy Metals (as Pb): ≤ 10 ppm

Physical Characteristics

• Appearance: White, granular or crystalline powder, odorless or with a faint characteristic odor.

• Solubility: Freely soluble in water, sparingly soluble in ethanol (96%).

Application Support

• Provides guidance on effective usage levels based on product pH and desired shelf life.

• Offers technical data on compatibility with other formulation ingredients.

Why Choose Us?

✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness