Benzene, 1,4-dibromo-
- Formula: C6H4Br2
- Molecular weight: 235.904
- IUPAC Standard InChIKey: SWJPEBQEEAHIGZ-UHFFFAOYSA-N
- CAS Registry Number: 106-37-6
- 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. - Other names: Benzene, p-dibromo-; p-Bromophenyl bromide; p-Dibromobenzene; 1,4-Dibromobenzene; Dibromobenzene
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Phase change data
Go To: Top, Mass spectrum (electron ionization), 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:
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
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 |
---|---|---|---|---|---|
Tboil | 491.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 493.55 | K | N/A | Dreisbach and Martin, 1949 | Uncertainty assigned by TRC = 0.07 K; TRC |
Tboil | 493.4 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tboil | 493.4 | K | N/A | Lecat, 1943 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 360. ± 3. | K | AVG | N/A | Average of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 17.74 ± 0.026 | kcal/mol | ME | Oonk, van Genderen, et al., 2000 | AC |
ΔsubH° | 14.3 | kcal/mol | ME,GS | Zibberman-Granovskaya, 1940 | Based on data from 248. to 303. K. See also Jones, 1960.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.9 | 388. | A | Stephenson and Malanowski, 1987 | Based on data from 373. to 493. K. See also Dykyj, 1972.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
334. to 491.8 | 2.48272 | 757.96 | -191.23 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
17.5 | 313. | N/A | Stephenson and Malanowski, 1987 | Based on data from 298. to 354. K.; AC |
17.5 ± 0.1 | 326. | V | Walsh and Smith, 1961 | ALS |
17.5 ± 0.1 | 326. | N/A | Walsh and Smith, 1961, 2 | Based on data from 278. to 353. K.; AC |
17.6 | 288. | N/A | Stern and Gregory, 1959 | Based on data from 228. to 347. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.873 | 360.5 | Kuramochi, Maeda, et al., 2004 | See also van der Linde, van Miltenburg, et al., 2005.; AC |
4.790 | 360.1 | Acree, 1991 | AC |
4.7897 | 360. | Ueberreiter and Orthmann, 1950 | DH |
4.9068 | 360.05 | Narbutt, 1918 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.3 | 360. | Ueberreiter and Orthmann, 1950 | DH |
13.6 | 360.05 | Narbutt, 1918 | DH |
Mass spectrum (electron ionization)
Go To: Top, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Chuck Anderson, Aldrich Chemical Co. |
NIST MS number | 107690 |
References
Go To: Top, Phase change data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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, 1947
Lecat, M.,
Some azeotropes of which one constituant is heterocyclic nitrogen,
Ann. Soc. Sci. Bruxelles, Ser. 1, 1947, 61, 73. [all data]
Lecat, 1943
Lecat, M.,
Azeotropes of Ethyl Urethane and other Azeotropes,
C. R. Hebd. Seances Acad. Sci., 1943, 217, 273. [all data]
Oonk, van Genderen, et al., 2000
Oonk, Harry A.J.; van Genderen, Aad C.G.; Blok, Jacobus G.; van der Linde, Peter R.,
Vapour pressures of crystalline and liquid 1,4-dibromo- and 1,4-dichlorobenzene; lattice energies of 1,4-dihalobenzenes,
Phys. Chem. Chem. Phys., 2000, 2, 24, 5614-5618, https://doi.org/10.1039/b005324o
. [all data]
Zibberman-Granovskaya, 1940
Zibberman-Granovskaya, A.A.,
Russ. J. Phys. Chem., 1940, 14, 759. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [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]
Dykyj, 1972
Dykyj, J.,
Petrochemia, 1972, 12, 1, 13. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Walsh and Smith, 1961
Walsh, P.N.; Smith, N.O.,
Sublimation pressure of a-p-dichloro-,β-p-dichloro-, p-dibromo-, and p-bromochlorobenzene,
J. Chem. Eng. Data, 1961, 6, 33. [all data]
Walsh and Smith, 1961, 2
Walsh, P.N.; Smith, N.O.,
Sublimation Pressure of α-p-Dichloro-β-p-Dichloro, and p-Dibromo-, and p-Bromochlorobenzene.,
J. Chem. Eng. Data, 1961, 6, 1, 33-35, https://doi.org/10.1021/je60009a010
. [all data]
Stern and Gregory, 1959
Stern, J.H.; Gregory, N.W.,
Vaporization Characteristics of p-Dibromobenzene,
J. Phys. Chem., 1959, 63, 4, 556-559, https://doi.org/10.1021/j150574a026
. [all data]
Kuramochi, Maeda, et al., 2004
Kuramochi, Hidetoshi; Maeda, Kouji; Kawamoto, Katsuya,
Measurements of Water Solubilities and 1-Octanol/Water Partition Coefficients and Estimations of Henry's Law Constants for Brominated Benzenes,
J. Chem. Eng. Data, 2004, 49, 3, 720-724, https://doi.org/10.1021/je0342724
. [all data]
van der Linde, van Miltenburg, et al., 2005
van der Linde, Peter R.; van Miltenburg, J. Cees; van den Berg, Gerrit J.K.; Oonk, Harry A.J.,
Low-Temperature Heat Capacities and Derived Thermodynamic Functions of 1,4-Dichlorobenzene, 1,4-Dibromobenzene, 1,3,5-Trichlorobenzene, and 1,3,5-Tribromobenzene,
J. Chem. Eng. Data, 2005, 50, 1, 164-172, https://doi.org/10.1021/je049762q
. [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]
Ueberreiter and Orthmann, 1950
Ueberreiter, K.; Orthmann, H.-J.,
Specifische Wärme, spezifisches Volumen, Temperatur- und Wärme-leittähigkeit einiger disubstituierter Benzole und polycyclischer Systeme,
Z. Natursforsch. 5a, 1950, 101-108. [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, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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