Benzoyl chloride
From Wikipedia, the free encyclopedia
| Benzoyl chloride | |
|---|---|
 |
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| General | |
| Molecular formula | C6H5COCl |
| SMILES | O=C(Cl)C1=CC=CC=C1 |
| Molar mass | 140.57 g mol−1 |
| Appearance | colorless liquid |
| CAS number | [98-88-4] |
| Properties | |
| Density and phase | 1.21 g/ml, liquid |
| Solubility in water | Reacts |
| Melting point | −1°C |
| Boiling point | 197.2°C |
| Viscosity | ? cP at ? °C |
| Hazards | |
| MSDS | External MSDS |
| EU classification | Corrosive (C) |
| NFPA 704 |
2
3
1
|
| R-phrases | R34 |
| S-phrases | S1/2, S26, S45 |
| Flash point | 72°C |
| RTECS number | DM6600000 |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Related compounds | Benzoic acid Benzoic anhydride Benzaldehyde |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Benzoyl chloride, also known as benzenecarbonyl chloride, is a colourless, fuming liquid, C6H5COCl, with an irritating odour. In the laboratory it may be prepared by distilling benzoic acid (C6H5COOH) with phosphorus pentachloride in anhydrous conditions. On a larger scale it is prepared by chlorinating benzaldehyde. This chlorination can be accomplished using thionyl chloride.
Benzoyl chloride has a melting point of -1°C and a boiling point of 198°C. The specific gravity is 1.212. It belongs the class of acyl halides.
This substance is used as an intermediate chemical in the preparation of dyes, perfumes, peroxides, pharmaceuticals, and resins. It is also used in photography; as gasoline gum inhibitors, and in the manufacture of synthetic tannins. It was formerly employed as an irritant gas in chemical warfare.
