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Sodium benzoate CAS#532-32-1
CAS: 532-32-1
MF: C7H5NaO2
MW: 144.10317
EINECS: 208-534-8
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Sodium benzoate CAS#532-32-1
Sodium benzoate, also known as benzoic acid sodium, is commonly used as food preservatives in food industry, odorless or with slight smell of benzoin, and tastes sweet astringency. Stable in air, can absorb moisture in open air. It’s naturally found in blueberry, apple, plum, cranberry, prunes, cinnamon and cloves, with weaker antiseptic performance than benzoic acid. Antiseptic performance of 1.180g sodium benzoate is equivalent of about 1g benzoic acid. In acidic environment, sodium benzoate have obvious inhibitory effect on a variety of microorganisms: when pH is at 3.5, 0.05% solution can completely inhibit the growth of yeast; while when pH is above 5.5, it has poor effect on a lot of mold and yeast; hardly has any effect in alkaline solution. After sodium benzoate enters into the body, in the process of biotransformation, it would combine with glycine to be uric acid, or combine with glucuronic acid to be glucosiduronic acid, and all to be eliminated from the body in urine, not to accumulate in the body. As long as it is within the scope of the normal dosage, it would be harmless to the human body, and it is a safe preservatives. It also can be used for carbonated beverages, concentrated juice, margarine, chewing gum base, jam, jelly, soy sauce, etc. Human acceptable daily intake (ADI) < 5 mg/kg body weight (take benzoic acid as calculation basis).
| Sodium benzoate Chemical Properties |
| Melting point | >300 °C (lit.) |
| density | 1,44 g/cm3 |
| vapor pressure | 0Pa at 20℃ |
| FEMA | 3025 | SODIUM BENZOATE |
| Fp | >100°C |
| storage temp. | room temp |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| pka | 4.03[at 20 ℃] |
| form | Crystals, Granules, Flakes or Crystalline Powder |
| color | White |
| PH | 7.0-8.5 (25℃, 1M in H2O) |
| Odor | odorless |
| biological source | synthetic |
| Water Solubility | soluble |
| Merck | 14,8582 |
| BRN | 3572467 |
| Stability: | Stable, but may be moisture senstive. Incompatible with strong oxidizing agents, alkalis, mineral acids. |
| Cosmetics Ingredients Functions | FRAGRANCE ANTICORROSIVE PRESERVATIVE |
| InChI | 1S/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 |
| InChIKey | WXMKPNITSTVMEF-UHFFFAOYSA-M |
| SMILES | [Na+].[O-]C(=O)c1ccccc1 |
| LogP | 1.88 |
| CAS DataBase Reference | 532-32-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium benzoate(532-32-1) |
| EPA Substance Registry System | Sodium benzoate (532-32-1) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-62-63-68-36 |
| Safety Statements | 24/25-36-26 |
| WGK Germany | 1 |
| RTECS | DH6650000 |
| Autoignition Temperature | >500°C |
| TSCA | TSCA listed |
| HS Code | 29163100 |
| Storage Class | 13 - Non Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
| Hazardous Substances Data | 532-32-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 4.07 g/kg (Smyth, Carpenter) |
Product Application of CAS#532-32-1
Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics. As a food additive, sodium benzoate has the E number E211.
It is also used in fireworks as a fuel in whistle mix, a powder that emits a whistling noise when compressed into a tube and ignited. The fuel is also one of the fastest burning rocket fuels and provides a lot of thrust and smoke. It does have its downsides: there is a high danger of explosion when the fuel is sharply compressed because of the fuel's sensitivity to impact.
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