Benzene, 1,2-dichloro-

• Formula: C₆H₄Cl₂
• Molecular weight: 147.002
• IUPAC Standard InChI: InChI=1S/C6H4Cl2/c7-5-3-1-2-4-6(5)8/h1-4H Copy

  
• IUPAC Standard InChIKey: RFFLAFLAYFXFSW-UHFFFAOYSA-N Copy
• CAS Registry Number: 95-50-1
• 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.
• Isotopologues:
  • 1,2-Dichlorobenzene-D4
• Other names: Benzene, o-dichloro-; o-Dichlorobenzene; Cloroben; Dilantin DB; Dowtherm E; 1,2-Dichlorbenzene; 1,2-Dichlorobenzene; Chloroben; o-Dichlorobenzol; Dilatin db; ortho-Dichlorobenzene; o-Dichlorbenzene; o-Dichlorbenzol; Dichlorobenzene, o-; Dizene; DCB; NCI-C54944; ODB; ODCB; Special termite fluid; Termitkil; Chloroden; Dichlorobenzene, ortho; Orthodichlorobenzol; UN 1591; NSC 60644
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy 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

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Notes

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

Platonov and Simulin, 1984
Platonov, V.A.; Simulin, Yu.N., Experimental determination of the standard enthalpies of formation of polychlorobenzenes. II. Standard enthalpies of formation of dichlorobenzenes, Russ. J. Phys. Chem. (Engl. Transl.), 1984, 58, 1630-1632. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Kailuru and Abburi, 1988
Kailuru, R.; Abburi, K., Isobaric Vapor-Liquid Equilibria of Methyl Ethyl Ketone(1) + o-Dichlorobenzene(2), + Bromobenzene(2), and + Nitrobenzene(2), J. Chem. Eng. Data, 1988, 33, 251. [all data]

Walling and Miller, 1957
Walling, C.; Miller, B., The Relative Reactivities of Substituted Toluenes toward Chlorine Atoms, J. Am. Chem. Soc., 1957, 79, 4181. [all data]

Dreisbach and Martin, 1949
Dreisbach, R.R.; Martin, R.A., Physical Data on Some Organic Compounds, Ind. Eng. Chem., 1949, 41, 2875-8. [all data]

Lecat, 1943
Lecat, M., Azeotropes of Ethyl Urethane and other Azeotropes, C. R. Hebd. Seances Acad. Sci., 1943, 217, 273. [all data]

Spieksma, Luijk, et al., 1994
Spieksma, Walter; Luijk, Ronald; Govers, Harrie A.J., Determination of the liquid vapour pressure of low-volatility compounds from the Kováts retention index, Journal of Chromatography A, 1994, 672, 1-2, 141-148, https://doi.org/10.1016/0021-9673(94)80602-0 . [all data]

An and Zheng, 1989
An, Xuwu; Zheng, Xiaolin, Determination of Standard Enthalpies of Vaporization and Sublimation of Three Dichlorobenzenes, Acta Phys. Chim. Sin., 1989, 5, 4, 487-491, https://doi.org/10.3866/PKU.WHXB19890421 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Basarová and Svoboda, 1991
Basarová, Pavlína; Svoboda, Václav, Calculation of heats of vaporization of halogenated hydrocarbons from saturated vapour pressure data, Fluid Phase Equilibria, 1991, 68, 13-34, https://doi.org/10.1016/0378-3812(91)85008-I . [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Grayson and Fosbraey, 2006
Grayson, B. Terence; Fosbraey, Lynda A., Determination of the vapour pressure of pesticides, Pestic. Sci., 2006, 13, 3, 269-278, https://doi.org/10.1002/ps.2780130308 . [all data]

Rohác, Ruzicka, et al., 1999
Rohác, Vladislav; Ruzicka, Vlastimil; Ruzicka, Kvetoslav; Polednicek, Milos; Aim, Karel; Jose, Jacques; Zábranský, Milan, Recommended vapour and sublimation pressures and related thermal data for chlorobenzenes, Fluid Phase Equilibria, 1999, 157, 1, 121-142, https://doi.org/10.1016/S0378-3812(99)00003-5 . [all data]

Rohác, Ruzicka, et al., 1998
Rohác, Vladislav; Ruzicka, Vlastimil; Ruzicka, Kvetoslav; Aim, Karel, Measurements of Saturated Vapor Pressure above the Liquid Phase for Isomeric Dichlorobenzenes and 1,2,4-Trichlorobenzene, J. Chem. Eng. Data, 1998, 43, 5, 770-775, https://doi.org/10.1021/je9701442 . [all data]

Polednicek, Guetachew, et al., 1996
Polednicek, M.; Guetachew, T.; Jose, J.; Ruzicka, V.; Rohac, V.; Zabransky, M., Vapor pressures and sublimation pressures of dichlorobenzenes (1,2-,1,3-, and 1,4-), trichlorobenzenes (1,2,3- and 1,3,5-), and pentachlorobenzene, ELDATA: Int. Electron. J. Phys. Chem. Data, 1996, 2, 2, 41. [all data]

Liu and Dickhut, 1994
Liu, Kewen; Dickhut, Rebecca M., Saturation vapor pressures and thermodynamic properties of benzene and selected chlorinated benzenes at environmental temperatures, Chemosphere, 1994, 29, 3, 581-589, https://doi.org/10.1016/0045-6535(94)90445-6 . [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]

McDonald, Shrader, et al., 1959
McDonald, R.A.; Shrader, S.A.; Stull, D.R., Vapor Pressures and Freezing Points of Thirty Pure Organic Compounds., J. Chem. Eng. Data, 1959, 4, 4, 311-313, https://doi.org/10.1021/je60004a009 . [all data]

Wei and Jin, 2009
Wei, Dongwei; Jin, Kexin, (Solid+liquid) equilibria of (naphthalene+isomeric dichlorobenzenes), The Journal of Chemical Thermodynamics, 2009, 41, 2, 145-149, https://doi.org/10.1016/j.jct.2008.10.005 . [all data]

Wei, 2008
Wei, Dongwei, (Solid+liquid) equilibria of (phenanthrene+dichlorobenzenes), Thermochimica Acta, 2008, 479, 1-2, 32-36, https://doi.org/10.1016/j.tca.2008.09.010 . [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]

Narbutt, 1918
Narbutt, J., Die Spezifischen Warmen und Schmelzwarmen der dichloro-, chlorbrom-, dibrom-, bromjod-, und dijodbenzole. I, Z. Elektrochem., 1918, 24, 339-342. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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