Sodium Benzoate

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seat: Henan
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Last update: 2018-01-15 06:44
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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. 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.


Appearance:White powder/granular

Molecular formula: 2(C3H6O2)CA

Molecular weight: 186.22

CAS No.: 4075-81-4              

HS No.: 29163100.90

FEMA No.: 3025

EINECS No.:223-795-8

Function : Preservative,brewing,dyes.


Technical Specification




99.0% Min.

Loss on drying

1.5% Max.


0.02% Max.


0.10% Max.

Chloride Compound

0.03% Max.

Heavy metals

10 ppm Max.

Acidity or Alkalinity

0.2ml/g Max.

Arsenic (As)

2 ppm Max.

Readily carbonisable Substances

Meets the requirements

Clarity of solution


Colour of solution


Benzene(ug per g)

2 ug Max.

Chloroform(ug per g)

60 ug Max.

1,4-Dioxane(ug per g)

380 ug Max.

Methylene chloride(ug per g)

600 ug Max.



Sodium benzoate is a good Preservative, used in acidic foods and products to control bacteria, mold, yeasts, and other microbes. It interferes with their ability to make energy. And used in medicine,tobacco,plating,printing and dyeing.


25 kg/woven bag or kraft paper bag


Storage and Transportation

Stored in dry, draughty and clean warehouse; protect against dampness and heating;kept away from toxic articles, handle with care, protect against damage to packing.

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