Benzoic anhydride
- CAS No.
- 93-97-0
- Chemical Name:
- Benzoic anhydride
- Synonyms
- Benzoyl benzoate;Benzoyl anhydride;BENZOIC ACID ANHYDRIDE;BENZOYL OXIDE;Benzoylbenzoate;Banzoyl benzoate;Phenyl anhydride;BENZOIC ANHYDRIDE;Benzoesureanhydrid;Dibenzoic anhydride
- CBNumber:
- CB1260942
- Molecular Formula:
- C14H10O3
- Molecular Weight:
- 226.23
- MOL File:
- 93-97-0.mol
- Modify Date:
- 2024/6/18 13:26:42
| Melting point | 38-42 °C(lit.) |
|---|---|
| Boiling point | 360 °C |
| Density | 1.199 g/mL at 25 °C(lit.) |
| refractive index | nD15 1.57665 |
| Flash point | >230 °F |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | 0.01g/l (experimental) |
| form | Crystals or Crystalline Powder |
| color | White to almost white |
| Water Solubility | 0.01 g/L |
| Sensitive | Moisture Sensitive |
| Merck | 14,1092 |
| BRN | 516726 |
| InChIKey | CHIHQLCVLOXUJW-UHFFFAOYSA-N |
| CAS DataBase Reference | 93-97-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, anhydride(93-97-0) |
| EPA Substance Registry System | Benzoic anhydride (93-97-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H315-H318-H372 | |||||||||
| Precautionary statements | P260-P264-P280-P302+P352-P305+P351+P338-P314 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 37/38-41-36/37/38 | |||||||||
| Safety Statements | 26-39-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-21 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29163900 | |||||||||
| NFPA 704 |
|
Benzoic anhydride price More Price(12)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 385980 | Benzoic anhydride ≥95% | 93-97-0 | 100G | ₹2132.53 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 385980 | Benzoic anhydride ≥95% | 93-97-0 | 500G | ₹8616.7 | 2022-06-14 | Buy |
| ALFA India | ALF-A14269-30 | Benzoic anhydride, 98% | 93-97-0 | 250g | ₹4731 | 2022-05-26 | Buy |
| ALFA India | ALF-A14269-18 | Benzoic anhydride, 98% | 93-97-0 | 50g | ₹1094 | 2022-05-26 | Buy |
| TCI Chemicals (India) | B0078 | Benzoic Anhydride min. 97.0 % | 93-97-0 | 25G | ₹1500 | 2022-05-26 | Buy |
Benzoic anhydride Chemical Properties,Uses,Production
Chemical Properties
white to almost white crystals or crystalline
Uses
Benzoic Anhydride is the more active analogue of benzoic acid formed via dehydration. Benzoic Anhydride is used in the synthesis of a wide range of organic compounds including some dyes. Benzoic Anhyd ride is also used as an arylation agent in the Heck reaction.
Preparation
To a flask containing 14.0 gm (0.1 mole) of benzoyl chloride and equipped with a stirrer is added 40 ml of dry dioxane and it is cooled to 5°C.Then 10 ml (0.1 mole) of dry pyridine is rapidly added at 5-10°C followed by 1.0 ml (0.056 mole) of water. After stirring for 10-15 min at 0-5°C, the reaction mixture is then poured into a mixture of 75 ml of cone, hydrochloric acid, 75 gm of cracked ice, and 350 ml of water. The product is filtered, washed first for 1 min with a cold 5% solution of sodium bicarbonate and then with water. The product is dried to afford 11.0 gm (97%), m.p. 43°C (recrystallized from a mixture of ether-petroleum ether).
General Description
Benzoic anhydride undergoes Friedel-Crafts acylation reaction with benzene over various ion-exchanged heteropoly acids to yield benzophenone.
Purification Methods
Free it from benzoic acid by washing with NaHCO3, then water, and drying. Crystallise it from *benzene (0.5mL/g) by adding just enough pet ether (b 40-60o) to cause cloudiness, then cool in ice. It can be distilled at 210-220o/20mm. [Beilstein 19 IV 550.]
Benzoic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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