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Sodium Benzoate

MacsChem > Cosmetic Ingredients > Sodium Benzoate

What is Sodium Benzoate?

Sodium Benzoate is the sodium salt of benzoic acid, and is used as a preservative in personal care products, food and beverages, medications and industries. It is approved by the FDA as nontoxic, although it may give rise to certain allergic reactions in sensitive individuals. 

chemical structure of sodium benzoate (C7H5O2Na)

CAS No.:  532-32-1

Synonyms: Benzoic acid sodium salt, Sobinate, Antimol

Properties of Sodium Benzoate 

Physical Properties
Chemical formulaC7H5O2Na
Molecular weight144.10 g/mol
SolubilitySoluble in liquid ammonia, pyridine
OdorOdorless
Flash point100 °C
Density1.497 g/cm3
Chemical Properties
ColorWhite or colourless
StateCrystalline powder
Decomposition Temperature450°C – 475°C
Melting point170-171 °C
LogP-2.27
pH7 – 8.5

Uses of Sodium Benzoate

  • Cosmetics & Personal Care Products – Prevents microbial contamination in shampoos, mouthwash, lotions, creams, and other water-based personal care products.
  • Food & Beverage Industry – Inhibits the growth of microorganisms in acidic foods and beverages, thereby extending shelf life.
  • Pharmaceuticals – Prevents spoilage in certain liquid medicines, such as cough syrups and oral solutions.
  • Industrial Use – Used in automotive coolants to prevent corrosion and rust in car engines.

Side Effects of Sodium Benzoate

  • Hyperactivity
  • Stomach and digestive issues
  • Migranes
  • Asthma-like symptoms 
  • Allergic reactions
Pictograms :

pictogram-mark-of-exclamation

Hazard Statements :

H319 Causes serious eye irritation

Precautionary statements :

P280 Wear eye protection/ face protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing.
P337 + P313 If eye irritation persists: Get medical advice/ attention.

What is Sodium Benzoate?

Sodium Benzoate is the sodium salt of benzoic acid, and is used as a preservative in personal care products, food and beverages, medications and industries. It is approved by the FDA as nontoxic, although it may give rise to certain allergic reactions in sensitive individuals. 

chemical structure of sodium benzoate (C7H5O2Na)

CAS No.:  532-32-1

Synonyms: Benzoic acid sodium salt, Sobinate, Antimol

Properties of Sodium Benzoate 

Physical Properties
Chemical formulaC7H5O2Na
Molecular weight144.10 g/mol
SolubilitySoluble in liquid ammonia, pyridine
OdorOdorless
Flash point100 °C
Density1.497 g/cm3
Chemical Properties
ColorWhite or colourless
StateCrystalline powder
Decomposition Temperature450°C – 475°C
Melting point170-171 °C
LogP-2.27
pH7 – 8.5

Uses of Sodium Benzoate

  • Cosmetics & Personal Care Products – Prevents microbial contamination in shampoos, mouthwash, lotions, creams, and other water-based personal care products.
  • Food & Beverage Industry – Inhibits the growth of microorganisms in acidic foods and beverages, thereby extending shelf life.
  • Pharmaceuticals – Prevents spoilage in certain liquid medicines, such as cough syrups and oral solutions.
  • Industrial Use – Used in automotive coolants to prevent corrosion and rust in car engines.

Side Effects of Sodium Benzoate

  • Hyperactivity
  • Stomach and digestive issues
  • Migranes
  • Asthma-like symptoms 
  • Allergic reactions
Pictograms :

pictogram-mark-of-exclamation

Hazard Statements :

H319 Causes serious eye irritation

Precautionary statements :

P280 Wear eye protection/ face protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing.
P337 + P313 If eye irritation persists: Get medical advice/ attention.

FAQ's

Sodium Benzoate is Generally Recognized As Safe (GRAS) for the skin and it is FDA approved preservative, used in many skincare products.

Sodium Benzoate is mild presrvatives added in hair care formulations and it is afe for hair.,when used in low concentrations.

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