Acetyl bromide is an acyl bromide compound. As is expected, it may be prepared by reaction between phosphorus tribromide and acetic acid:[2]
Names | |||
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Preferred IUPAC name Acetyl bromide | |||
Identifiers | |||
3D model (JSmol) | |||
ChemSpider | |||
ECHA InfoCard | 100.007.329 | ||
EC Number |
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PubChem CID | |||
RTECS number |
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UNII | |||
UN number | 1716 | ||
CompTox Dashboard (EPA) | |||
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Properties | |||
C2H3BrO | |||
Molar mass | 122.949 g·mol−1 | ||
Density | 1.663 g/mL | ||
Melting point | −96 °C (−141 °F; 177 K) | ||
Boiling point | 75 to 77 °C (167 to 171 °F; 348 to 350 K) | ||
Hazards | |||
GHS labelling: | |||
Danger | |||
H314 | |||
P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501 | |||
Flash point | 110 °C (230 °F; 383 K) | ||
Safety data sheet (SDS) | ILO MSDS | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
- 3 CH3COOH + PBr3 → 3 CH3COBr + H3PO3
As usual for an acid halide, acetyl bromide hydrolyzes rapidly in water, forming acetic acid and hydrobromic acid. It also reacts with alcohols and amines to produce acetate esters and acetamides, respectively.
References
edit- ^ Acetyl bromide[permanent dead link] at Sigma-Aldrich
- ^ Theodore M. Burton and Ed. F. Degering (1940). "The Preparation of Acetyl Bromide". J. Am. Chem. Soc. 62: 227. doi:10.1021/ja01858a502.
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