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Ethane, hexachloro-

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Gas phase thermochemistry data

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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-32.079kcal/molReviewChase, 1998Data last reviewed in September, 1967
Deltafgas-35.4 ± 1.4kcal/molReviewManion, 2002weighted average of several measurements of equilibria involving C2Cl6, CCl4, and C2Cl4; DRB
Deltafgas-34.3 ± 2.3kcal/molEqkPuyo, Balesdent, et al., 1963Reanalyzed by Cox and Pilcher, 1970, Original value = -34.7 ± 1.0 kcal/mol; ALS
Quantity Value Units Method Reference Comment
gas,1 bar95.086cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1200.1200. - 6000.
A 31.1684046.13241
B 28.67139-1.441850
C -24.101410.241066
D 7.204281-0.014623
E -0.405846-2.449080
F -43.81341-52.07151
G 122.9810142.3080
H -32.08009-32.08009
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1967 Data last reviewed in September, 1967

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.
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
Deltafliquid-47.6 ± 1.5kcal/molReviewManion, 2002derived from recommended «DELTA»fHgas° and «DELTA»vapH°; DRB
Quantity Value Units Method Reference Comment
Deltacsolid-174. ± 2.kcal/molCcbSmith, Bjellerup, et al., 1953ALS
Quantity Value Units Method Reference Comment
solid,1 bar56.72cal/mol*KN/ARakhmenkulov, Gutov, et al., 1975Entropy estimated at 13 K to be 3.10 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
47.380298.15Rakhmenkulov, Gutov, et al., 1975T = 13.7 to 360 K.; DH
52.10298.5Seki and Momotani, 1950T = 295 to 351 K. Unsmoothed experimental datum.; 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]

Puyo, Balesdent, et al., 1963
Puyo, J.; Balesdent, D.; Niclause, M.; Dzierzynski, M., Etude analytique et thermodynamique de la pyrolyse de l'hexachloroethane en phase gazeuse., Compt. Rend., 1963, 256, 3471-3473. [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]

Smith, Bjellerup, et al., 1953
Smith, L.; Bjellerup, L.; Krook, S.; Westermark, H., Heats of combustion of organic chloro compounds determined by the "quartz wool" method, Acta Chem. Scand., 1953, 7, 65. [all data]

Rakhmenkulov, Gutov, et al., 1975
Rakhmenkulov, S.S.; Gutov, S.A.; Paukov, I.E., The heat capacity of hexachloroethane in the temperature range 13.7-360 K and the temperatures and enthalpies of its phase transition, Zhur. Fiz. Khim., 1975, 49, 2722. [all data]

Seki and Momotani, 1950
Seki, S.; Momotani, M., Heats of transition of hexachloroethane, Bull. Chem. Soc. Japan, 1950, 23, 30-31. [all data]


Notes

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