Sodium Benzoate (Food Additive)

Sodium Benzoate, Food Additive.
Chemical names:Sodium benzoate, sodium salt of benzenecarboxylic acid, sodium salt of phenylcarboxylic acid.
CAS No.:532-32-1
Chemical formula:C7H5NaO2
Formula weight:144.11
Sodium Benzoate occurs as white granules, crystalline powder, or flakes. One gram dissolves in 2 mL of water, in 75 mL of alcohol, and in 50 mL of 90% alcohol.
INSPECTION STANDARD:
Assay:Not less than 99.0% on the dried basis;
Assay:99.0% -100.5% of C7H5NaO2, calculated on the anhydrous basis;
Alkalinity (as NaOH):Not more than 0.04%;
Lead:Not more than 2 mg/kg;
Arsence (As):Not more than 2 mg/kg;
Water:Not more than 1.5%.;
Sulfate (Basis as SO4): 0.1%max;
Chloride (BaSis as Cl):0.03%max;
Loss on drying:Not more than 1.5%.
Appreance:White, almost odourless, crystalline powder, flakes or granules.
FUNCTIONAL USES:
Preservative; antimicrobial agent.
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