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Benzene, 1,2,4,5-tetrachloro-3,6-dimethyl-

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Condensed 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafsolid-41.64kcal/molCcrHu and Sinke, 1969 
Deltafsolid-42.06kcal/molCcrSmith, Scott, et al., 1964 
Quantity Value Units Method Reference Comment
Deltacsolid-938.38kcal/molCcrHu and Sinke, 1969 
Deltacsolid-937.84 ± 0.14kcal/molCcrSmith, Scott, et al., 1964Reanalyzed by Cox and Pilcher, 1970, Original value = -937.4 ± 0.14 kcal/mol

Phase change data

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, 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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus521.KN/ASmith, Scott, et al., 1964, 2Uncertainty assigned by TRC = 2. K; TRC
Tfus370.KN/AColson, 1887Uncertainty assigned by TRC = 1. K; TRC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
5.399368.2Acree, 1991AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


IR Spectrum

Go To: Top, Condensed phase thermochemistry data, 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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin TENNESSEE EASTMAN COMPANY, RESEARCH LABORATORIES
Source reference COBLENTZ NO. 2380
Date Not specified, most likely prior to 1970
Name(s) 1,2,4,5-tetrachloro-3,6-dimethylbenzene
State SOLID (KBr PELLET)
Instrument Not specified, most likely a prism, grating, or hybrid spectrometer.
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY
Melting point 223 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Hu and Sinke, 1969
Hu, A.T.; Sinke, G.C., Combustion calorimetry of some chlorinated organic compounds, J. Chem. Thermodyn., 1969, 1, 507-513. [all data]

Smith, Scott, et al., 1964
Smith, N.K.; Scott, D.W.; McCullough, J.P., Combustion calorimetry of organic chlorine compounds. The heat of combustion of 2,3,5,6-tetrachloro-p-xylene, J. Phys. Chem., 1964, 68, 934-939. [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, Scott, et al., 1964, 2
Smith, N.K.; Scott, D.W.; McCullough, J.P., J. Phys. Chem., 1964, 68, 934. [all data]

Colson, 1887
Colson, XX, C. R. Hebd. Seances Acad. Sci., 1887, 104, 428. [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References