Sodium Benzoate

Product Name

: SODIUM BENZOATE

C.A.S. No.

: 532-32-1

Molecular Formula

: C₇H₅NaO₂

Molecular Weight

: 144.10 g/mol

SPECIFICATION

IP

BP

USP

Description

A white or almost white, crystalline or granular powder or flakes , odorless or with a faint odour ;hygroscopic

A white or almost white, crystalline or granular powder or flakes , slightly hygroscopic

A white or almost white, crystalline or granular powder or flakes , slightly hygroscopic

Solubility

-

Freely soluble in water, sparingly soluble in ethanol (90 % )

-

Identification

(A)Reaction

(B)Reaction

(C)Reaction

A : It gives reaction of Benzoate

B: It gives reaction of Sodium salts.

C: A white Crystalline precipitate is produced.

A : It gives reaction of Benzoate

B : It gives reaction of Sodium

A : It gives reaction of Benzoate

B : It gives reaction of Sodium

Appearance of Solution

10 % w/v solution is not more intensely Colored than reference solution YS6.

10 % w/v solution is not more intensely Colored than reference solution Y6.

-

Acidity & Alkalinity

( USP)

NMT. 0.2 ml of 0.1M sodium hydroxide or 0.1M HCL is required to change the colour of the solution

NMT. 0.2 ml of 0.1M sodium hydroxide or 0.1M HCL is required to change the color of indicator

The pink color is produced

Arsenic

NMT 2 ppm

-

-

Chlorinated Compounds

The filtrate complies with limit test for chlorides

-

-

Water

-

-

NMT. 1.5%

Halogenated compounds

-

NMT. 200 ppm for Ionized chlorine and NMT. 300 ppm for total chlorine

-

Heavy Metals

NMT 20 ppm

-

NMT.10 ppm.

Organic Volatile Impurities

-

-

Meets the requirement

Residual Solvents

-

-

Meets the requirement

Loss on drying ( 105^oC)

NMT 2.0%

NMT 2.0%

-

Assay (on dry basis )

99.0 % - 100.5 %

99.0% - 100.5%

99.0 % - 100.5 %