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L-Sodium Benzoate

Sodium benzoate is a kind of white particles or crystal powder, odorless or slightly rest aroma, slightly sweet taste, astringent taste. Also known as sodium benzoate, the relative molecular weight is 144.12. It is stable in air and soluble in water. The pH value of its aqueous solution is 8 and soluble in ethanol. Benzoic acid and its salts are broad-spectrum antimicrobial agents, but their antibacterial effectiveness depends on the pH value of food. With the increase of medium acidity, its germicidal and bacteriostatic effect is enhanced, but in alkaline medium it loses its germicidal and bacteriostatic effect. The optimum pH value of anticorrosion is 2.5 ~ 4.0.

No.

ITEMS

SPECIFICATION

1.

Appearance

White particles or crystalline powder

2.

Content (dry basis)

99.0 - 100.5%

3.

1:10 water solution chroma (platinum-cobalt scale) Hazen

≤20

4.

Solution clarity test

Pass Test

5.

Easy oxide test

Pass Test

6.

Alkalinity (as NaOH)

Pass Test

7.

As

≤2 ppm

8.

Lead

≤2 ppm

9.

Heavy metal (Pb) 

≤10 ppm

10.

Sulfate（as SO4)

≤0.1%

11.

Chlorine(as Cl)

≤200 ppm

12.

Phthalic acid

Pass Test

13.

Loss on drying

≤1.5%

Application:

It is mainly used as food preservative, and also used to make medicine and dye

Packaging:

25kg bag, or as customer’s requirement

Storage condition:

Store in a dry and cool place away from light.

Shelf life:

2 years