- Formula: CH3Cl
- Molecular weight: 50.488
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: NEHMKBQYUWJMIP-UHFFFAOYSA-N
- CAS Registry Number: 74-87-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Methane, chloro-; Methyl chloride; Artic; Freon 40; Monochloromethane; CH3Cl; Chloor-methaan; Chlor-methan; Chlorure de methyle; Clorometano; Cloruro di metile; Methylchlorid; Metylu chlorek; R 40; Rcra waste number U045; UN 1063; Refrigerant R40
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Gas 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
|fH°gas||-83.68||kJ/mol||Review||Chase, 1998||Data last reviewed in June, 1972|
|fH°gas||-81.9 ± 1.5||kJ/mol||Review||Manion, 2002||adopted flame calorimetry data of Fletcher and Pilcher, 1971 with increased uncertainty to reflect other data; DRB|
|fH°gas||-81.96 ± 0.67||kJ/mol||Ccb||Fletcher and Pilcher, 1971, 2||ALS|
|fH°gas||-85.90 ± 0.59||kJ/mol||Chyd||Lacher, Emery, et al., 1956||Reanalyzed by Cox and Pilcher, 1970, Original value = -86.33 ± 0.59 kJ/mol; ALS|
|cH°gas||-764.0 ± 0.50||kJ/mol||Ccb||Fletcher and Pilcher, 1971, 2||ALS|
|S°gas,1 bar||234.36||J/mol*K||Review||Chase, 1998||Data last reviewed in June, 1972|
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
|Temperature (K)||298. - 1200.||1200. - 6000.|
|Reference||Chase, 1998||Chase, 1998|
|Comment||Data last reviewed in June, 1972||Data last reviewed in June, 1972|
Go To: Top, Gas phase thermochemistry data, Notes
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Manion, J.A., Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons, J. Phys. Chem. Ref. Data, 2002, 31, 1, 123-172, https://doi.org/10.1063/1.1420703 . [all data]
Fletcher and Pilcher, 1971
Fletcher, R.A.; Pilcher, G., Measurements of heats of combustion by flame calorimetry. Part 7.?Chloromethane, chloroethane, 1-chloropropane, 2-chloropropane, Trans. Faraday Soc., 1971, 67, 3191, https://doi.org/10.1039/tf9716703191 . [all data]
Fletcher and Pilcher, 1971, 2
Fletcher, R.A.; Pilcher, G., Measurements of heats of combustion by flame calorimetry. Part 7.-Chloromethane, chloroethane, 1-chloropropane, 2-chloropropane, Trans. Faraday Soc., 1971, 67, 3191-3201. [all data]
Lacher, Emery, et al., 1956
Lacher, J.R.; Emery, E.; Bohmfalk, E.; Park, J.D., Reaction heats of organic compounds. IV. A high temperature calorimeter and the hydrogenation of methyl ethyl and vinyl chlorides, J. Phys. Chem., 1956, 60, 492-495. [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]
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) cH°gas Enthalpy of combustion of gas at standard conditions fH°gas Enthalpy of formation of gas at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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