Chloromethane
- Formula: CH3Cl
- Molecular weight: 50.488
- 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
The 3d structure may be viewed using Java or Javascript. - 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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Phase change data
Go To: Top, Gas Chromatography, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 247. ± 10. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 182. | K | N/A | Awbery, 1941 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 175.55 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 176.5 | K | N/A | Timmermans, 1911 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 175.43 | K | N/A | Messerly and Aston, 1940 | Uncertainty assigned by TRC = 0.07 K; from T vs 1/f in a calorimter, Resistance thermomter and thermocouple gave same temperature, temp. scale in previous publication; TRC |
Ttriple | 175.44 | K | N/A | Messerly and Aston, 1940 | Uncertainty assigned by TRC = 0.05 K; from T vs 1/f in adiabatic calorimeter, temp. meas. with resistance thermometer & two thermocouples, temp scale described in previous publication; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ptriple | 0.008587 | atm | N/A | Messerly and Aston, 1940 | Uncertainty assigned by TRC = 0.000013 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 416. ± 1. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 66.266 | atm | N/A | Mansoorian, Hall, et al., 1981 | Uncertainty assigned by TRC = 0.0066 atm; VP measured up to 408 K,; TRC |
Pc | 65.9190 | atm | N/A | Hsu and McKetta, 1964 | Uncertainty assigned by TRC = 0.0400 atm; TRC |
Pc | 65.93 | atm | N/A | Leduc, 1909 | Uncertainty assigned by TRC = 2.0000 atm; TRC |
Pc | 73.03 | atm | N/A | Vincent and Chappuis, 1886 | Uncertainty assigned by TRC = 3.0000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 7.1895 | mol/l | N/A | Hsu and McKetta, 1964 | Uncertainty assigned by TRC = 0.006 mol/l; TRC |
ρc | 7.33 | mol/l | N/A | Centnerszwer, 1904 | Uncertainty assigned by TRC = 0.1 mol/l; extrapolation of rectilnear diam. to Tc; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 4.90 ± 0.07 | kcal/mol | Review | Manion, 2002 | weighted average of several measurements plus a correction for non-ideality; DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
5.1470 | 248.94 | N/A | Messerly and Aston, 1940, 2 | P = 101.325 kPA; DH |
5.43 | 235. | N/A | Beersmans and Jungers, 2010 | Based on data from 183. to 250. K.; AC |
5.26 | 263. | N/A | Ganeff and Jungers, 2010 | Based on data from 198. to 278. K.; AC |
5.26 | 262. | A | Stephenson and Malanowski, 1987 | Based on data from 247. to 310. K.; AC |
5.21 | 383. | A | Stephenson and Malanowski, 1987 | Based on data from 368. to 416. K.; AC |
5.02 | 323. | A | Stephenson and Malanowski, 1987 | Based on data from 308. to 373. K.; AC |
5.62 | 206. | N/A | Thomson, 1946 | Based on data from 191. to 249. K.; AC |
5.40 | 234. | N/A | Messerly and Aston, 1940, 2 | Based on data from 192. to 249. K.; AC |
4.801 | 293. | C | Yates, 1926 | ALS |
4.80 | 293. | C | Yates, 1926 | AC |
Entropy of vaporization
ΔvapS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
20.68 | 248.94 | Messerly and Aston, 1940, 2 | P; DH |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
303. to 416.3 | 4.91287 | 1427.529 | 45.137 | Hsu and McKetta, 1964 | Coefficents calculated by NIST from author's data. |
198. to 278. | 4.21936 | 951.561 | -23.468 | Ganeff and Jungers, 1948 | Coefficents calculated by NIST from author's data. |
183. to 249.4 | 4.14883 | 916.223 | -28.466 | Beersmans and Jungers, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.55 ± 0.02 | 151. | Bah and Dupont-Pavlovsky, 1995 | Based on data from 130. to 172. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.537 | 175.44 | Messerly and Aston, 1940, 2 | DH |
1.53 | 174.5 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.762 | 175.44 | Messerly and Aston, 1940, 2 | DH |
Gas Chromatography
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Squalane | 80. | 329. | Pacáková, Vojtechová, et al., 1988 | N2, Chezasorb AW-HMDS; Column length: 1.2 m |
Packed | Squalane | 27. | 324. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 49. | 326. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 67. | 327. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 86. | 329. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 332.92 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 332.92 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 332. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxanes | 332. | Zenkevich, Eliseenkov, et al., 2006 | Program: not specified |
Capillary | Methyl Silicone | 340. | Blunden, Aneja, et al., 2005 | 60. m/0.32 mm/1.0 μm, Helium; Program: -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min) |
Capillary | Methyl Silicone | 332. | Zenkevich, 1999 | Program: not specified |
Capillary | Methyl Silicone | 326. | Zenkevich, 1998 | Program: not specified |
Capillary | Polydimethyl siloxanes | 332. | Zenkevich and Chupalov, 1996 | Program: not specified |
Capillary | Polydimethyl siloxanes | 332. | Zenkevich and Chupalov, 1996 | Program: not specified |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Awbery, 1941
Awbery, J.H.,
Philos. Mag., 1941, 31, 247. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Timmermans, 1911
Timmermans, J.,
Researches on the freezing point of organic liquid compounds,
Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]
Messerly and Aston, 1940
Messerly, G.H.; Aston, J.G.,
The Heat Capacity and Entropy, Heats of Fusion and Vaporization and the Vapor Pressure of Methyl Chloride,
J. Am. Chem. Soc., 1940, 62, 886-90. [all data]
Mansoorian, Hall, et al., 1981
Mansoorian, H.; Hall, K.R.; Holste, J.C.; Eubank, P.T.,
The density of gaseous ethane and of fluid methyl chloride and the vapor pressure of methyl chloride,
J. Chem. Thermodyn., 1981, 13, 1001-24. [all data]
Hsu and McKetta, 1964
Hsu, C.C.; McKetta, J.J.,
Pressure-Volume-Temperature Properties of Methyl Chloride,
J. Chem. Eng. Data, 1964, 9, 1, 45-51, https://doi.org/10.1021/je60020a014
. [all data]
Leduc, 1909
Leduc, A.,
Compressibility of gases between 0 atm and 3 atm and at all temperatures,
C. R. Hebd. Seances Acad. Sci., 1909, 148, 407. [all data]
Vincent and Chappuis, 1886
Vincent, C.; Chappuis, J.,
J. Phys. Theor. Appl., 1886, 5, 58. [all data]
Centnerszwer, 1904
Centnerszwer, M.,
An Application of the Method of Cailletet and Mathias to Determine Critical Volume.,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1904, 49, 199. [all data]
Manion, 2002
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]
Messerly and Aston, 1940, 2
Messerly, G.H.; Aston, J.G.,
The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of methyl chloride,
J. Am. Chem. Soc., 1940, 62, 886-890. [all data]
Beersmans and Jungers, 2010
Beersmans, J.; Jungers, J.C.,
Synthèse et Étude des Chlorure, Bromure et Iodure de Deutérométhyle,
Bull. Soc. Chim. Belges, 2010, 56, 5-8, 238-250, https://doi.org/10.1002/bscb.19470560506
. [all data]
Ganeff and Jungers, 2010
Ganeff, Jean M.; Jungers, Joseph C.,
Tensions de vapeur du système CH3Cl «63743» CH2Cl2,
Bull. Soc. Chim. Belges, 2010, 57, 1-3, 82-87, https://doi.org/10.1002/bscb.19480570109
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Thomson, 1946
Thomson, George Wm.,
The Antoine Equation for Vapor-pressure Data.,
Chem. Rev., 1946, 38, 1, 1-39, https://doi.org/10.1021/cr60119a001
. [all data]
Yates, 1926
Yates, G.W.C.,
LXXIV. Latent heats of vaporization of ethyl and methyl chlorides,
Philos. Mag., 1926, 2, 817-826. [all data]
Ganeff and Jungers, 1948
Ganeff, J.M.; Jungers, J.C.,
Tensions de Vapeur du Systeme CH3Cl - CH2Cl2,
Bull. Soc. Chim. Belg., 1948, 57, 1-3, 82-87, https://doi.org/10.1002/bscb.19480570109
. [all data]
Beersmans and Jungers, 1947
Beersmans, J.; Jungers, J.C.,
Synthese et Etude des Chlorure, Bromure et Iodure de Deuteromethyle,
Bull. Soc. Chim. Belg., 1947, 56, 5-8, 238-250, https://doi.org/10.1002/bscb.19470560506
. [all data]
Bah and Dupont-Pavlovsky, 1995
Bah, A.; Dupont-Pavlovsky, N.,
Vapor Pressure of Solid Chloromethane,
J. Chem. Eng. Data, 1995, 40, 4, 869-870, https://doi.org/10.1021/je00020a028
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Pacáková, Vojtechová, et al., 1988
Pacáková, V.; Vojtechová, H.; Coufal, P.,
Reaction gas chromatography: study of the photodecomposition of halogenated hydrocarbons,
Chromatographia, 1988, 25, 7, 621-626, https://doi.org/10.1007/BF02327659
. [all data]
Hively and Hinton, 1968
Hively, R.A.; Hinton, R.E.,
Variation of the retention index with temperature on squalane substrates,
J. Gas Chromatogr., 1968, 6, 4, 203-217, https://doi.org/10.1093/chromsci/6.4.203
. [all data]
White, Douglas, et al., 1992
White, C.M.; Douglas, L.J.; Hackett, J.P.; Anderson, R.R.,
Characterization of synthetic gasoline from the chloromethane-zeolite reaction,
Energy Fuels, 1992, 6, 1, 76-82, https://doi.org/10.1021/ef00031a012
. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Zenkevich, Eliseenkov, et al., 2006
Zenkevich, I.G.; Eliseenkov, E.V.; Kasatochkin, A.N.,
Application of Retention Indices in GC-MS Identification of Halogenated Organic Compounds,
Mass Spectromery (Rus.), 2006, 3, 2, 131-140. [all data]
Blunden, Aneja, et al., 2005
Blunden, J.; Aneja, V.P.; Lonneman, W.A.,
Characterization of non-methane volatile organic compounds at swine facilities in eastern North Carolina,
Atm. Environ., 2005, 39, 36, 6707-6718, https://doi.org/10.1016/j.atmosenv.2005.03.053
. [all data]
Zenkevich, 1999
Zenkevich, I.G.,
Mutual Correlation between Gas-Chromatographic Retention Indices of Organic Compounds from Different Series,
Zh. Anal. Khim., 1999, 54, 12, 1272-1279. [all data]
Zenkevich, 1998
Zenkevich, I.G.,
Reciprocally Unambiguous Conformity Between GC Retention Indices and Boiling Points within Two- and Multidimensional Taxonomic Groups of Organic Compounds,
J. Hi. Res. Chromatogr., 1998, 21, 10, 565-568, https://doi.org/10.1002/(SICI)1521-4168(19981001)21:10<565::AID-JHRC565>3.0.CO;2-6
. [all data]
Zenkevich and Chupalov, 1996
Zenkevich, I.G.; Chupalov, A.A.,
New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments,
Zh. Org. Khim. (Rus.), 1996, 32, 5, 656-666. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Pc Critical pressure Ptriple Triple point pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ΔvapS Entropy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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