Chemical Name: Ucephan
CAS No.: 532-32-1
Molecular Fomula: C7H5NaO2
Molecular weight: 144.10317
Appearance: White Crystals, Granules, Flakes or Crystalline Powder
Sample: Available
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Sodium benzoate is a substance which has the chemical formula NaC7H5O2. It is a widely used food preservative, with an E number of E211. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid.
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | Sodium benzoate |
| CAS No. | 532-32-1 |
| Molecular Formula | C7H5NaO2 |
| Molecular Weight | 144.10300 |
| PSA | 40.13000 |
| LogP | 0.05010a |
Numbering system
| MDL number | MFCD00012463 |
Properties
| Appearance & Physical State | White crystalline powder. |
| Density | 1.44 g/cm3 |
| Boiling Point | 249.3ºC at 760 mmHg |
| Melting Point | >300ºC(lit.) |
| Flash Point | 111.4ºC |
| Water Solubility | soluble |
| Stability | Stable, but may be moisture senstive. Incompatible with strong oxidizing agents, alkalis, mineral acids. |
| Storage Condition | Store at RT. |
Safety Info
| RTECS | DH6650000 |
| Safety Statements | S24/25 |
| HS Code | 4002191900 |
| WGK Germany | 1 |
| Risk Statements | R36/37/38 |
| Hazard Codes | Xi |
| Caution Statement | P305 + P351 + P338 |
| Hazard Declaration | H319 |
| Signal Word | Warning |
| Symbol | GHS07 |
Sodium benzoate is also an important acid-based food preservative. It is converted to the active form of benzoic acid when used. See benzoic acid for the range of use and the amount used. It can also be used as a preservative for feedstuffs. It is used as a food additive (preservative), a fungicide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastic industry, and an intermediate in organic synthesis such as fragrances.
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