Molekula
Sodium benzoate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium benzoate is a white crystalline powder used as a preservative in food, pharmaceuticals, and cosmetics. It inhibits the growth of mold, yeast, and bacteria. Available in 1 kg, 5 kg, and 25 kg packaging, it has a CAS number of 532-32-1, molecular formula C6H5COONa, and molecular weight of 144.10 g/mol. Store at ambient temperatures. Signal word: Warning. Molekula supplies Sodium benzoate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White grains, dust free no odour |
| Loss on Drying | ≤1.0% (m/m) |
| Chloride (Cl-) | ≤50.0 mg/kg |
| Insoluble Matter | Passes test |
| Organic Volatile Impurities | Passes test |
| Iron (Fe) | ≤1.0 mg/kg |
| Heavy metals (mg/kg) | ≤10.0 mg/kg |
| Mercury (Hg) | ≤0.1 mg/kg |
| Sulphates (SO4)(2-) | ≤50 mg/kg |
| Phenol | ≤2% mg/kg |
| Assay on dried product (%m/m) | ≥99.9% |
| Colour, 10% m/m solution in water (APHA) | (10% m/m sol.) ≤1.0% |
| Acidity (mg NAOH/g) | ≤0.40 mg NAOH/g |
| Alkalinity (mg HCI/g) | ≤0.37 mg HCI/g |
| Halogenated Compounds, as Cl- (mg/kg) | ≤25 mg/kg |
| Turbidity (of a 10% (m/m) solution in water) (NTU) | ≤0.5 |
| Oxidizable substances (ml 0.02 mol KMnO4/g) | ≤0.1 |
| Polycyclic acids | Passes test |
| Phthalic acid (mg/kg) | ≤50 mg/kg |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, granules or crystalline powder |
| Odour | Odorless |
| Melting Point | 436 °C |
| Density | 1.44 (relative, water = 1) |
| Solubility (other solvents) | Freely soluble in water, sparingly soluble in ethanol |
Source: PubChem CID 517055 (HSDB, ICSC, EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 24454612 |
| CAS Number | 532-32-1 |
| IUPAC Name | sodium benzoate |
| EC Number | 208-534-8 |
| Molecular Formula | C6H5COONa |
| Molecular Weight | 144.10 |
| Exact Mass | 144.0187 |
| SMILES | C1=CC=C(C=C1)C(=O)[O-].[Na+] |
| InChIKey | WXMKPNITSTVMEF-UHFFFAOYSA-M |
| InChI | InChI=1S/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 |
| PubChem CID | 517055 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29163111 |
| Tariff Code | 2916310090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Antimol
- Benzoan sodny
- Benzoate of soda
- Benzoate sodium
- Benzoic acid, sodium salt
- FEMA No. 3025
- Fuminaru
- Microcare sb
- Natrium benzoicum
- Sobenate
Frequently asked questions
What is sodium benzoate used for?
Sodium benzoate is primarily used as a preservative in food, beverages, and pharmaceuticals due to its antimicrobial properties.
What is the chemical formula and molecular weight of sodium benzoate?
The formula is C6H5COONa and the molecular weight is 144.10 g/mol.
How should sodium benzoate be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of sodium benzoate does Molekula supply?
Molekula supplies food-grade sodium benzoate suitable for use in food and pharmaceutical applications.
Can Molekula supply sodium benzoate in bulk?
Yes, Molekula can supply sodium benzoate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a sodium benzoate order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.