Acetyl chloride
- Formula: C2H3ClO
- Molecular weight: 78.498
- IUPAC Standard InChI: InChI=1S/C2H3ClO/c1-2(3)4/h1H3
- IUPAC Standard InChIKey: WETWJCDKMRHUPV-UHFFFAOYSA-N
- CAS Registry Number: 75-36-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Ethanoyl chloride; Acetic chloride; CH3COCl; Acetic acid chloride; Rcra waste number U006; UN 1717; Acetic acid monochloride; UN1717 (DOT)
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Condensed phase thermochemistry data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -272.0 ± 0.50 | kJ/mol | Cm | Devore and O'Neal, 1969 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -275.2 ± 0.46 kJ/mol; Heat of hydrolysis; ALS |
| ΔfH°liquid | -274. ± 0.59 | kJ/mol | Cm | Pritchard and Skinner, 1950 | Reanalyzed by Cox and Pilcher, 1970, Original value = -277.2 kJ/mol; Heat of hydrolysis at 298 K, see Carson and Skinner, 1949; ALS |
| ΔfH°liquid | -275.2 ± 0.2 | kJ/mol | Cm | Carson and Skinner, 1949 | ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 117.2 | 298. | von Reis, 1881 | T = 289 to 343 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Devore and O'Neal, 1969
Devore, J.A.; O'Neal, H.E.,
Heats of formation of the acetyl halides and of the acetyl radical,
J. Phys. Chem., 1969, 73, 2644-2648. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Pritchard and Skinner, 1950
Pritchard, H.O.; Skinner, H.A.,
The heats of hydrolysis of the chloro-substituted acetyl chlorides,
J. Chem. Soc., 1950, 272-276. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Carson and Skinner, 1949
Carson, A.S.; Skinner, H.A.,
201. Carbon-halogen bond energies in the acetyl halides,
J. Chem. Soc., 1949, 936-939. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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