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Sodium Benzoate

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Sodium Benzoate is the sodium salt of benzoic acid, appearing as a white, crystalline powder that is highly soluble in water. It is widely used as a preservative due to its antimicrobial properties, especially effective against yeast and bacteria in acidic conditions. Sodium Benzoate is commonly employed in the food, beverage, pharmaceutical, and cosmetic industries to extend shelf life and maintain product quality. It meets food-grade and pharmaceutical-grade purity standards, ensuring safety for consumption and topical use.

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Category: Preservatives(food) Tags: Antimicrobial Agent, Food-grade preservative, Pharmaceutical formulations, Preservative, Sodium Benzoate

Description

Table of Contents

Sodium Benzoate

Primary Uses

Food & Beverage Industry

Acts as a preservative in acidic foods such as salad dressings, carbonated drinks, fruit juices, jams, and pickles to inhibit microbial growth.
Used to prevent spoilage and extend shelf life in various processed foods.
Functions as an antimicrobial agent particularly effective in low pH products.

Pharmaceuticals

Employed as a preservative in syrups, suspensions, and topical formulations.
Used to inhibit microbial contamination and prolong product stability.

Cosmetics & Personal Care

Incorporated as a preservative in lotions, creams, shampoos, and other personal care products to prevent bacterial and fungal growth.

Industrial Applications

Used as a corrosion inhibitor in some industrial applications such as antifreeze and brake fluids.
Functions as a buffering agent and pH adjuster in various chemical processes.

Secondary Uses

Laboratory & Analytical Uses

Used as a standard in chemical analysis and microbiological media.

Agriculture

Sometimes used in animal feed as a preservative to inhibit mold growth.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Sodium benzoate
Common/Trade Name: Sodium Benzoate
CAS Number: 532-32-1
HS Code: 2922.42
Synonyms: Benzoate of soda, sodium benzoate preservative

2. Physical & Chemical Properties

Physical State: White crystalline powder
Color & Odor: White, odorless to slight aromatic odor
Solubility: Freely soluble in water; slightly soluble in alcohol
pH (1% solution): Approximately 8.5 (alkaline)
Melting Point: 300 °C (decomposes)
Stability: Stable under normal conditions; sensitive to moisture and heat

3. Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under normal use
Toxicity: Low toxicity; generally recognized as safe (GRAS) at approved levels
Exposure Limits: Avoid inhalation of dust

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry, well-ventilated area, away from incompatible substances such as strong acids.
Container Type: Food-grade plastic or metal drums, bags, or containers.
Shelf Life: Typically 2 years if stored properly
Handling Precautions: Use protective gloves and dust mask if handling large quantities; avoid dust generation

5. Regulatory & Compliance Attributes

Approved by FDA, EFSA, and other international food safety authorities for use as a food preservative (E211).
Complies with USP, FCC, and other relevant standards for purity and safety.
Meets regulations for use in pharmaceuticals and cosmetics.

6. Environmental & Health Impact

Biodegradability: Readily biodegradable under aerobic conditions.
Ecotoxicity: Low environmental toxicity but large quantities may affect aquatic organisms.
Bioaccumulation: Not significant.

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Gloves, dust mask, and goggles recommended when handling powder in bulk.
Handling Guidelines: Avoid inhalation and prolonged skin contact; work in well-ventilated areas.
Storage Measures: Keep containers tightly sealed and stored in a dry environment away from acids.

First Aid Measures

Inhalation: Move to fresh air; seek medical attention if respiratory irritation occurs.
Skin Contact: Wash with soap and water; seek medical advice if irritation develops.
Eye Contact: Flush eyes with plenty of water for at least 15 minutes; seek medical attention if irritation persists.
Ingestion: Rinse mouth; seek medical advice if large amounts ingested.

Firefighting Measures

Fire Hazards: Non-flammable, but may decompose under fire conditions producing toxic fumes.
Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ extinguisher.
Special Precautions: Wear full protective gear and self-contained breathing apparatus if fighting fire.
Hazardous Combustion Products: Carbon oxides, sodium oxides, and benzoic acid vapors.