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Chloromethane

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-83.68kJ/molReviewChase, 1998Data last reviewed in June, 1972
Deltafgas-81.9 ± 1.5kJ/molReviewManion, 2002adopted flame calorimetry data of Fletcher and Pilcher, 1971 with increased uncertainty to reflect other data; DRB
Deltafgas-81.96 ± 0.67kJ/molCcbFletcher and Pilcher, 1971, 2ALS
Deltafgas-85.90 ± 0.59kJ/molChydLacher, Emery, et al., 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -86.33 ± 0.59 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Deltacgas-764.0 ± 0.50kJ/molCcbFletcher and Pilcher, 1971, 2ALS
Quantity Value Units Method Reference Comment
gas,1 bar234.36J/mol*KReviewChase, 1998Data last reviewed in June, 1972

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
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.

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Temperature (K) 298. - 1200.1200. - 6000.
A 3.52469088.66691
B 136.927710.06834
C -82.14196-1.928737
D 20.227970.128191
E 0.278032-19.76840
F -89.19995-152.5311
G 202.8391286.4015
H -83.68000-83.68000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1972 Data last reviewed in June, 1972

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-102.4 ± 1.5kJ/molReviewManion, 2002derived from recommended «DELTA»fHgas° and «DELTA»vapH°; DRB
Quantity Value Units Method Reference Comment
liquid140.08J/mol*KN/AMesserly and Aston, 1940DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
80.8293.15Awberg and Griffiths, 1940T = 243 to 303 K. Cp reported at 20°C = 1.598 J/g*K and at 30°C = 1.632 J/g*K.; DH
75.60249.67Messerly and Aston, 1940T = 12 to 249.67 K. Value is unsmoothed experimental datum.; DH
81.2298.Shorthose, 1924T = -30 to 40°C.; DH

References

Go To: Top, Gas phase thermochemistry data, 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]

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]

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, 886-890. [all data]

Awberg and Griffiths, 1940
Awberg, J.H.; Griffiths, E., The specific heat of liquid methyl chloride, Proc. Phys. Soc. (London), 1940, 52, 770-776. [all data]

Shorthose, 1924
Shorthose, D.N., G. B. DSIR, Food Invest. Board, Spec. Rept., 1924, No. 19, 16pp. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References