Ethane, 1,1,1-trichloro-

• Formula: C₂H₃Cl₃
• Molecular weight: 133.404
• IUPAC Standard InChI: InChI=1S/C2H3Cl3/c1-2(3,4)5/h1H3 Copy

  
• IUPAC Standard InChIKey: UOCLXMDMGBRAIB-UHFFFAOYSA-N Copy
• CAS Registry Number: 71-55-6
• 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.
• Species with the same structure:
  • trichloroethane
• Other names: α-Trichloroethane; Aerothene TT; Chlorotene; Chlorothane NU; Chlorothene; Chlorothene NU; Chlorothene VG; Chlorten; Inhibisol; Methylchloroform; Methyltrichloromethane; Trichloroethane; 1,1,1-Trichloroethane; CH3CCl3; α-T; Chloroethene NU; Chloroform, methyl-; NCI-C04626; Solvent 111; Trichloro-1,1,1-ethane; 1,1,1-Trichloraethan; 1,1,1-Tricloroetano; CF 2; Chloroetene; Chloroethene; Chlorothene SM; Ethana NU; ICI-CF 2; Rcra waste number U226; Tafclean; 1,1,1-TCE; Trichloromethylmethane; Tri-ethane; UN 2831; 1,1,1-Trichlorethane; Distillex DS1; Ethana; Solvethane; Cleanite; F 140a; Genklene LB; HCC 140a; Three One A; Three One S
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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

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 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

Constant pressure heat capacity of liquid

Constant pressure heat capacity of solid

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Enthalpy of vaporization

Entropy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Enthalpy of fusion

Entropy of fusion

Temperature of phase transition

Enthalpy of phase transition

Entropy of phase transition

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm^-1 resolution
• GAS (90 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH II) FROM HARD COPY; 2 cm^-1 resolution

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas

Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty

• gas; IFS66V (Bruker); 3-Term B-H Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Boxcar Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Happ Genzel Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); NB Strong Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Triangular Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, temperature ramp

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Kovats' RI, polar column, isothermal

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Kovats' RI, polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, isothermal

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

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]

Hu, Sinke, et al., 1972
Hu, A.T.; Sinke, G.C.; Mintz, M.J., The enthalpy of formation of 1,1,1-trichloroethane from enthalpy of combustion and equilibrium studies, J. Chem. Thermodyn., 1972, 4, 239-245. [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]

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]

Mansson, Ringner, et al., 1971
Mansson, M.; Ringner, B.; Sunner, S., The enthalpies of combustion and formation of some simple chloroalkanes and chloralkenes 1,1,1-trichloroethane and 1,1-dichloroethene, J. Chem. Thermodyn., 1971, 3, 547-551. [all data]

Levanova, Treger, et al., 1975
Levanova, S.V.; Treger, Yu.A.; Velichko, S.M.; Rozhnov, A.M.; Bshneva, L.I.; Talanov, A.I., Equilibrium of the vinylidene chloride-methylchloroform system, Zh. Prikl. Khim. (Leningrad), 1975, 42, 480-481. [all data]

Andon, Counsell, et al., 1973
Andon, R.J.L.; Counsell, J.F.; Lee, D.A.; Martin, J.F., Thermodynamic properties of aliphatic halogen compounds. Part 2. Heat capacity of 1,1,1-trichloroethane, J. Chem. Soc. Faraday Trans., 1973, I 69, 1721-1726. [all data]

Rubin, Levedahl, et al., 1944
Rubin, T.R.; Levedahl, B.H.; Yost, D.M., The heat capacity, heat of transition, vaporization, vapor pressure and entropy of 1,1,1-trichloroethane, J. Am. Chem. Soc., 1944, 66, 279-282. [all data]

Crowe and Smyth, 1950
Crowe, R.W.; Smyth, C.P., Heat capacities, dielectric constants and molecular rotational freedom in solid trichloroethanes and disubstituted propanes, J. Am. Chem. Soc., 1950, 72, 4009-4015. [all data]

Martin and Monti, 1988
Martin, C.A.; Monti, G.A., Specific heat analysis in 1,1,1-trichloroethane, Thermochim. Acta, 1988, 134, 27-34. [all data]

Andon, Counsell, et al., 1973, 2
Andon, R.J.L.; Counsell, J.F.; Lee, D.A.; Martin, J.F., Thermodynamic properties of aliphatic halogen compounds. Part 2.---Heat capacity of 1,1,1-trichloroethane, J. Chem. Soc., Faraday Trans. 1, 1973, 69, 0, 1721, https://doi.org/10.1039/f19736901721 . [all data]

Crowe and Smyth, 1950, 2
Crowe, R.W.; Smyth, C.P., Heat capacities, dielectric constants and molecular rotational freedom in solid trichloroethanes and disubstituted propanes, J. Am. Chem. Soc., 1950, 72, 4009. [all data]

Rubin, Levedahl, et al., 1944, 2
Rubin, T.R.; Levedahl, B.H.; Yost, D.M., The heat capacity, heat of transition, vaporization, vapor pressure and entropy of 1,1,1-trichloroethane, J. Am. Chem. Soc., 1944, 66, 279. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]

Rao and Viswanath, 1977
Rao, Yaddanapudi J.; Viswanath, Dabir S., Integral isobaric heats of vaporization of benzene-chloroethane systems, J. Chem. Eng. Data, 1977, 22, 1, 36-38, https://doi.org/10.1021/je60072a011 . [all data]

Ambrose, Sprake, et al., 1973
Ambrose, D.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of aliphatic halogen compounds. Part 1.---Vapour pressure and critical properties of 1,1,1-trichloroethane, J. Chem. Soc., Faraday Trans. 1, 1973, 69, 0, 839, https://doi.org/10.1039/f19736900839 . [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]

Hasebe and Yoshida, 1991
Hasebe, T.; Yoshida, M., Polymorphism and molecular motions in 1,1,1-trichloroethane. Differential thermal analysis and 1H NMR, Fukushima Daigaku Kyoikugakubu Ronshu, Rika Hokoku, 1991, 48, 5-8. [all data]

Martin, 1982
Martin, C.A., Specific heat anomalies in some organic compounds, Therm. Anal., Proc. Int. Conf., 7th, 1982, 2, 829-835. [all data]

Annino and Villalobos, 1999
Annino, R.; Villalobos, R., A strategy for the simplification and solution of complex chromatographic analysis problems utilizing two-dimensional mapping of retention indexes followed by computer modeling of heart cuts from serially coupled columns containing different stationary phases, J. Hi. Res. Chromatogr., 1999, 22, 10, 589-593. [all data]

Dewulf, Van Langenhove, et al., 1997
Dewulf, J.; Van Langenhove, H.; Everaert, M., Solid-phase microextraction of volatile organic compounds estimation of the sorption equilibrium from the Kováts index, effect of salinity and humic acids and the study of the kinetics by the development of an agitated/static layer model, J. Chromatogr. A, 1997, 761, 1-2, 205-217, https://doi.org/10.1016/S0021-9673(96)00810-2 . [all data]

Villalobos, 1995
Villalobos, R., A window diagram for key component analysis in on-line gas chromatography, J. Hi. Res. Chromatogr., 1995, 18, 6, 343-347, https://doi.org/10.1002/jhrc.1240180604 . [all data]

Castello and Gerbino, 1988
Castello, G.; Gerbino, T.C., Effect of Temperature on the Gas Chromatographic Separation of Halogenated Compounds on Polar and Non-Polar Stationary Phases, J. Chromatogr., 1988, 437, 33-45, https://doi.org/10.1016/S0021-9673(00)90369-8 . [all data]

Winskowski, 1983
Winskowski, J., Gaschromatographische Identifizierung von Stoffen anhand von Indexziffem und unterschiedlichen Detektoren, Chromatographia, 1983, 17, 3, 160-165, https://doi.org/10.1007/BF02271041 . [all data]

Goebel, 1982
Goebel, K.-J., Gaschromatographische Identifizierung Niedrig Siedender Substanzen Mittels Retentionsindices und Rechnerhilfe, J. Chromatogr., 1982, 235, 1, 119-127, https://doi.org/10.1016/S0021-9673(00)95793-5 . [all data]

Shimadzu, 2003
Shimadzu, Gas chromatography analysis of organic solvents using capillary columns (No. 2), 2003, retrieved from http://www.shimadzu.com/apps/form.cfm. [all data]

Xu, van Stee, et al., 2003
Xu, X.; van Stee, L.L.P.; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J.; Brinkman, U.A.Th.; Lelieveld, J., Comprehensive two-dimensional gas chromatography (GC×GC) measurements of volatile organic compounds in the atmosphere, Atmos. Chem. Phys., 2003, 3, 3, 665-682, https://doi.org/10.5194/acp-3-665-2003 . [all data]

Helmig, Pollock, et al., 1996
Helmig, D.; Pollock, W.; Greenberg, J.; Zimmerman, P., Gas chromatography mass spectrometry analysis of volatile organic trace gases at Mauna Loa Observatory, Hawaii, J. Geophys. Res., 1996, 101, D9, 14697-14710, https://doi.org/10.1029/96JD00212 . [all data]

White, Hackett, et al., 1992
White, C.M.; Hackett, J.; Anderson, R.R.; Kail, S.; Spock, P.S., Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross-linked polydimethylsiloxane, J. Hi. Res. Chromatogr., 1992, 15, 2, 105-120, https://doi.org/10.1002/jhrc.1240150211 . [all data]

Weber, 1986
Weber, L., Utilization of the Sadtler standard RI system in micropollution analyses, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 8, 446-451, https://doi.org/10.1002/jhrc.1240090806 . [all data]

Zilka and Matucha, 1978
Zilka, L.; Matucha, M., Gas chromatographic analysis of chlorinated ethanes, J. Chromatogr., 1978, 148, 1, 229-235, https://doi.org/10.1016/S0021-9673(00)99342-7 . [all data]

Shimadzu, 2003, 2
Shimadzu, Gas chromatography analysis of organic solvents using capillary columns (No. 3), 2003, retrieved from http://www.shimadzu.com/apps/form.cfm. [all data]

Health Safety Executive, 2000
Health Safety Executive, MDHS 96 Volatile organic compounds in air - Laboratory method using pumed solid sorbent tubes, solvent desorption and gas chromatography in Methods for the Determination of Hazardous Substances (MDHS) guidance, Crown, Colegate, Norwich, 2000, 1-24, retrieved from http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf. [all data]

Ciccioli, Cecinato, et al., 1992
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Frattoni, M.; Liberti, A., Use of carbon adsorption traps combined with high resolution gas chromatography - mass spectrometry for the analysis of polar and non-polar C₄-C₁₄ hydrocarbons involved in photochemical smog formation, J. Hi. Res. Chromatogr., 1992, 15, 2, 75-84, https://doi.org/10.1002/jhrc.1240150205 . [all data]

Habu, Flath, et al., 1985
Habu, T.; Flath, R.A.; Mon, T.R.; Morton, J.F., Volatile components of Rooibos tea (Aspalathus linearis), J. Agric. Food Chem., 1985, 33, 2, 249-254, https://doi.org/10.1021/jf00062a024 . [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]

Cooke, Hassoun, et al., 2001
Cooke, K.M.; Hassoun, S.; Sanders, S.M.; Pilling, M.J., Identification and quantification of volatile organic compounds found in a eucalyptus forest during FIELDVOC'94 in Portugal, Chemosphere Global Change Science, 2001, 3, 3, 249-257, https://doi.org/10.1016/S1465-9972(01)00008-3 . [all data]

Zenkevich, 2001
Zenkevich, I.G., Comparative Characterization of Conditions for Unambuguous Chromatographic Identification of Organic Compounds, Zh. Anal. Khim., 2001, 56, 9, 915-924. [all data]

Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technical_series₁997-01-01₁.pdf. [all data]

Sorimachi, Tanabe, et al., 1995
Sorimachi, J.; Tanabe, A.; Mitobe, H.; Kuniaki, K.; Masaaki, S., Programmed temperature retention indices for volatile organic compounds on headspace GC/MS analysis, Niigata-ken Eisei Kogai Kenkyusho Nenpo, 1995, 11, 75-79. [all data]

Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, 1994, 549-568. [all data]

Ciccioli, Brancaleoni, et al., 1993
Ciccioli, P.; Brancaleoni, E.; Cecinato, A.; Sparapani, R.; Frattoni, M., Identification and determination of biogenic and anthropogenic volatile organic compounds in forest areas of Northern and Southern Europe and a remote site of the Himalaya region by high-resolution gas chromatography-mass spectrometry, J. Chromatogr., 1993, 643, 1-2, 55-69, https://doi.org/10.1016/0021-9673(93)80541-F . [all data]

Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J., Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning, Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111 . [all data]

Takeoka, Flath, et al., 1988
Takeoka, G.R.; Flath, R.A.; Güntert, M.; Jennings, W., Nectarine volatiles: vacuum steam distillation versus headspace sampling, J. Agric. Food Chem., 1988, 36, 3, 553-560, https://doi.org/10.1021/jf00081a037 . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J., Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse, J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5 . [all data]

Heydanek and McGorrin, 1981
Heydanek, M.G.; McGorrin, R.J., Gas chromatography-mass spectroscopy investigations on the flavor chemistry of oat groats, J. Agric. Food Chem., 1981, 29, 5, 950-954, https://doi.org/10.1021/jf00107a016 . [all data]

Shimadzu, 2012
Shimadzu, Pharmaceutical Related, Analysis of pharmaceutical residual solvent (observation of separation) (1) - GC, 2012, retrieved from www.shimadzu.ru/applications/Applications_pdf/GC/Pharma/Pharmaceutical residual solvents GC.pdf. [all data]

Shimadzu Corporation, 2003
Shimadzu Corporation, Analysis of pharmaceutical residual solvent (observation of separation), 2003, retrieved from http://www.shimadzu.com.br/analitica/aplicacoes/book/pharm69.pdf. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  Cp,solid	Constant pressure heat capacity of solid
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  Ttrs	Temperature of phase transition
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ΔvapS	Entropy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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