Sodium Benzoate
ELPROTECTTM – NaBZ
Sodium benzoate is the sodium salt of benzoic acid, which exists in this form when dissolved in water. This compound is produced by treating benzoic acid with sodium hydroxide. On a commercial level, benzoic acid is produced by the partial oxidation of toluene with oxygen. Sodium benzoate is a common food preservative and is also used in various industrial applications.
Get Pricing for This Product
Need pricing? Request a quote for this product and we'll get back to you shortly.
Speed Up Your Sample Testing Process
Express Delivery in 24–48 Hours
CAS Number
532-32-1
HS Code
2929.90.5000
Molecular Formula
C₇H₅NaO₂
INCI Name
Sodium Benzoate
Sodium Benzoate
ELPROTECTTM – NaBZ
Sodium benzoate is the sodium salt of benzoic acid, which exists in this form when dissolved in water. This compound is produced by treating benzoic acid with sodium hydroxide. On a commercial level, benzoic acid is produced by the partial oxidation of toluene with oxygen. Sodium…
CAS Number
532-32-1
INCI Name
Sodium Benzoate
HS Code
2929.90.5000
Molecular Formula
C₇H₅NaO₂
Get Pricing for This Product
Need pricing? Request a quote for this product and we'll get back to you shortly.
Speed Up Your Sample Testing Process
We deliver domestic samples within 24 - 48 hours, helping you evaluate products and move to procurement without delays.
Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Ph | 7.0-8.5 (25℃, 1M in H2O) |
| Odor | odorless |
| Appearance | White solid |
| Molecular Weight (G/Mol) | 144.1 |
| Ph (If Aqueous Solution) | 7.0-8.5 (25℃, 1M in H2O) |
| Density Or Specific Gravity | 1,44 g/cm3 |
Chemical Properties
| Property | Specification |
|---|---|
| Pka | 4.03[at 20 ℃] |
| Water Solubility | H2O: 1 M at 20 °C |
| Incompatibilities | Oxidisers |
Thermal Properties
| Property | Specification |
|---|---|
| Flash Point | >100°C |
| Melting Point | >300 °C (lit.) |
Processing Methods & Reference Formulations
A. Cosmetic creams
Dissolve sodium benzoate in the water phase before emulsification to ensure uniform distribution. Add it before emulsification to ensure even distribution. Check final pH and adjust if needed for optimal preservation.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Water (Purified) | 75.00% |
| Glycerin | 5.00% |
| Stearic Acid | 3.00% |
| Cetyl Alcohol | 3.00% |
| Mineral Oil | 5.00% |
| Glyceryl Monostearate | 3.00% |
| Sodium Benzoate | 0.50% |
| Triethanolamine (TEA) | 1.00% |
| Methylparaben | 0.20% |
| Propylparaben | 0.10% |
| Fragrance | 0.20% |
| Preservative (Phenoxyethanol or similar) | 0.50% |
B. Hair conditioning shampoo
Dissolve sodium benzoate in the aqueous phase before blending with other ingredients to ensure even distribution. Maintain the shampoo’s final pH between 4.5 and 5.5, as sodium benzoate is only effective as a preservative in acidic conditions.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Myreth Sulfate | 10% |
| Ethylhexyl Methoxycinnamate | 0.3% |
| Sodium Benzoate | 0.5% |
| Water | 80-90% |
| Color, perfume, preservative, (Other surfactants, hydrotropes, etc.) |
C. Facial cleansers
Add Sodium Benzoate to the water phase of facial cleanser formulations and ensure it is fully dissolved, using mild heat if needed. Add it before combining with surfactants for uniform distribution. Ensure the final formulation maintains an acidic pH for optimal antimicrobial activity.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| 65% | |
| 3% | |
| Sodium Lauroyl Sarcosinate (30% in water) | 4.4% |
| Sodium Benzoate | 0.2% |
| Disodium EDTA | 0.1% |
| PEG-200 Hydrogenated Glyceryl Palmate | 0.3% |
| PEG-7 Glyceryl Cocoate | 0.3% |
| PEG-75 | 2% |
| Fragrance | 0.25% |
| Citric Acid | 0.8% |
D. Hair Conditioners
Add Sodium Benzoate to the water phase of hair conditioner formulations, ensuring complete dissolution with gentle heating if necessary. Incorporate before emulsification to ensure even distribution.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Behentrimonium Chloride | 2% |
| Cetyl Alcohol | 3% |
| Stearyl Alcohol | 2% |
| Caprylyl Glycol | 0.5% |
| Glyceryl Caprylate | 0.5% |
| Sodium Benzoate | 0.2% |
| Phenoxyethanol | 0.5% |
| Citric Acid | 0.3% |
| Fragrance | 0.2% |
| Water (Aqua) | 70% |
Dosing Guidelines
A. Dosing by Application
| Products | Authorized dosage |
|---|---|
| Lotions & Creams | Upto 0.5% |
| Shampoos & Conditioners | Upto 2.5% |
About Sodium Benzoate
It is produced by the neutralization of benzoic acid with sodium hydroxide (NaOH) or sodium bicarbonate. Its yiels recovery was around 95-99% .
It is produced by the neutralization of benzoic acid with sodium hydroxide (NaOH) or sodium bicarbonate. Its yiels recovery was around 95-99% . Raw Material: Benzoic acid, NaOH or NaHCO3 Overall Formula: C6H5COOH + NaOH --> C6H5COONa + H2O
About Sodium Benzoate
It is produced by the neutralization of benzoic acid with sodium hydroxide (NaOH) or sodium bicarbonate. Its yiels recovery was around 95-99% .
It is produced by the neutralization of benzoic acid with sodium hydroxide (NaOH) or sodium bicarbonate. Its yiels recovery was around 95-99% . Raw Material: Benzoic acid, NaOH or NaHCO3 Overall Formula: C6H5COOH + NaOH --> C6H5COONa + H2O
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| China | 2.5% | NMPA - National Medical Products Administration | NMPA - National Medical Products Administration |
| Japan | 2.5% | Not specifically restricted by law, but Japanese industry follows international standards | MHLW – Ministry of Health, Labour and Welfare |
| Korea, Republic of | 2.5% | MFDS - Ministry of Food and Drug Safety | MFDS - Ministry of Food and Drug Safety |
| United States | 0.5% | In the United States sodium benzoate is on the FDA list of substances that are generally recognised as safe (GRAS). Sodium Benzoate is permitted in oral medicines up to 0.5%, in drugs parenterally administered up to 0.5% and in cosmetics up to 0.5%. | FDA |
| ASEAN | 2.5% | ASEAN | - |
| European Union | 2.5% | States that benzoic acid and its salt are safe for use at a maximum concentration of 2.5 % in cosmetic rinse-off products and in cosmetic oral-care products upto 1.7 %, and in leave-on products up to 0.5 %. | SCCS (Scientific Committee on Consumer Safety) |
FAQs - Sodium Benzoate
Related Products
Related Products
Streamline
your chemical
procurement
Get fast responses from real experts