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Sodium Benzoate

Sodium Benzoate

  • Sodium benzoate is a substance which has the chemical formula NaC7H5O2. It is a widely used food preservative, with an E number of E211.
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  • SPECIFICATIONS
  • Description
Sodium benzoate is a substance which has the chemical formula NaC7H5O2. It is a widely used food preservative, with an E number of E211. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid.

Sodium Benzoate structure
Sodium Benzonate
Sodium Benzoate specifications
Appearance White powder,with styrax benzoin smell
Content%(asdry product C7H5NaO2) ≥99.0
Loss on drying% ≤2.0
Acidity or alkalinity In conformity with the regulations
Heavy metals% (Pb) ≤0.001
Arsenic % ≤0.0002
Halogenide (FeCl3) % ≤0.02
Total Cl Content% ≤0.03
Transparency and colour In conformity with the regulations
Color of solution Y6
Heavy Metals (As Pb)% ≤0.001

Sodium Benzoate application
Sodium benzoate is a preservative, with the E number E211. It is most widely used in acidic foods such as salad dressings (i.e. acetic acid in vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (acetic acid), and condiment. It is also used as a preservative in medicines and cosmetics. Under these conditions it is converted into benzoic acid (E210), which is bacteriostatic and fungistatic. Benzoic acid is generally not used directly due to its poor water solubility. Concentration as a food preservative is limited by the FDA in the U.S. to 0.1% by weight.[7] Sodium benzoate is also allowed as an animal food additive at up to 0.1%, according to AFCO's official publication. Sodium benzoate has been replaced by potassium sorbate in the majority of soft drinks in the United Kingdom.

Pharmaceutical applications
Sodium benzoate is used as a treatment for urea cycle disorders due to its ability to bind amino acids. This leads to excretion of these amino acids and a decrease in ammonia levels. Recent research shows that sodium benzoate may be beneficial as an add-on therapy (1 gram/day) in schizophrenia.Total Positive and Negative Syndrome Scale scores dropped by 21% compared to placebo.

Sodium benzoate is used to treat hyperammonemia.

Other uses
Sodium benzoate is also used in fireworks as a fuel in whistle mix, a powder that emits a whistling noise when compressed into a tube and ignited.
Sodium-Benzonate

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