Sodium Benzoate is the sodium salt of benzoic acid and is widely used as a functional ingredient across food, pharmaceutical, and industrial systems. Also referred to as sodium benzoate and E211, this compound functions through its ionic solubility and chemical stability, supporting controlled use in formulated products and processing applications. Identified under CAS 532-32-1, it is typically supplied as a white crystalline powder. For industrial supply, it is available in food, pharmaceutical, and industrial grades, offered with competitive factory pricing, supports customized specifications, and is provided with standard documentation including MSDS, TDS, COA, suitable for bulk supply.
Sodium Benzoate CAS 532-32-1
- CAS: 532-32-1
- Synonyms: Sodium benzoate, E211, Benzoic acid sodium salt, Sodium benzenecarboxylate
- Molecular Formula: C7H5NaO2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Product Name:sodium benzoate
Appearance:scaly or needle-like crystals
Sodium benzoate, also known as sodium benzoate, is an organic matter with the chemical formula C7H5NaO2, which is a white particle or crystalline powder, odorless or slightly benzoin, slightly sweet, astringent taste, relative molecular weight of 144.12, stable in air, easily soluble in water, its aqueous solution pH value is 8, soluble in alcohol. It is used as a food preservative, and is also used to make medicines, dyes, etc.
Chemical formula: C7H5NaO2
Molecular weight: 144.12
CAS accession number: 532-32-1
Melting point: 122.4°C
Boiling point: 249°C
Water solubility: easily soluble in water
Flash point: 121-123°C
Application: Preservative; The product is used as a food additive (preservative), a fungicide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastics industry, and an intermediate in organic synthesis such as fragrances. It is mainly used as a food preservative, and is also used to make medicines, dyes, etc.; Sodium benzoate is also an important preservative in acid-based foods. Converts to the effective form of benzoic acid when used. The product is used as a food additive (preservative), a fungicide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastics industry, and an intermediate in organic synthesis such as fragrances. It is also used as an intermediate in organic synthesis such as fragrances. Preservative; Antimicrobials.
FAQ - Technical & Supply Chain
-
Q:
Is Sodium Benzoate chemically synonymous with E211?
A: Yes, Sodium Benzoate and the food additive code E211 refer to the same chemical compound identified by CAS 532-32-1, widely recognized for its preservation properties in acidic media. -
Q:
Is this additive suitable for use as a corrosion inhibitor?
A: Sodium Benzoate is typically applied as a non-toxic corrosion inhibitor in water-based systems, such as automotive antifreeze and metalworking fluids, protecting steel and aluminum from oxidation.
Documents
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Quotation
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Storage & Handling
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Supply Support
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
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