Acetyl chloride

Not to be confused with Chloroacetic acid, Chloroacetyl chloride, Acetylcholine, or Actinium(III) chloride.
Acetyl chloride[1]
Skeletal formula of acetyl chloride
Skeletal formula of acetyl chloride
Ball-and-stick model of acetyl chloride
Ball-and-stick model of acetyl chloride
Space-filling model of acetyl chloride
Names
Preferred IUPAC name
Acetyl chloride[2]
Systematic IUPAC name
Ethanoyl chloride
Other names
Acyl chloride
Identifiers
3D model (JSmol)
605303
ChEBI
ChemSpider
ECHA InfoCard 100.000.787 Edit this at Wikidata
EC Number
  • 200-865-6
1611
RTECS number
  • AO6390000
UNII
UN number 1717
  • InChI=1S/C2H3ClO/c1-2(3)4/h1H3 checkY
    Key: WETWJCDKMRHUPV-UHFFFAOYSA-N checkY
  • InChI=1/C2H3ClO/c1-2(3)4/h1H3
    Key: WETWJCDKMRHUPV-UHFFFAOYAQ
  • ClC(=O)C
Properties
CH3COCl
Molar mass 78.49 g/mol
Appearance Colorless liquid
Density 1.104 g/ml, liquid
Melting point −112 °C (−170 °F; 161 K)
Boiling point 52 °C (126 °F; 325 K)
Reacts with water
-38.9·10−6 cm3/mol
Structure
2.45 D
Hazards
GHS labelling:
GHS02: FlammableGHS05: CorrosiveGHS07: Exclamation mark
Danger
H225, H302, H314, H335, H412
P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P273, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P363, P370+P378, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
3
2
W
Flash point 4 °C (39 °F; 277 K)
390 °C (734 °F; 663 K)
Explosive limits 7.3–19%
Related compounds
Propionyl chloride
Butyryl chloride
Related compounds
 Acetic acid
Acetic anhydride
Acetyl bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Acetyl chloride (CH3COCl) is an acyl chloride derived from acetic acid (CH3COOH). It belongs to the class of organic compounds called acid halides. It is a colorless, corrosive, volatile liquid. Its formula is commonly abbreviated to AcCl.

  1. ^ Merck Index, 11th Edition, 79.
  2. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. pp. 796–797. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.