Carbon tetrabromide
- Formula: CBr4
- Molecular weight: 331.627
- IUPAC Standard InChIKey: HJUGFYREWKUQJT-UHFFFAOYSA-N
- CAS Registry Number: 558-13-4
- 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: Methane, tetrabromo-; Carbon bromide (CBr4); Methane tetrabromide; Tetrabromomethane; CBr4; Carbon bromide; Bromid uhlicity; UN 2516; NSC 6179
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Phase change data
Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 367.6 | K | N/A | Silver and Rudman, 1970 | Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 365. | K | N/A | Sharpe and Walker, 1962 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 364.05 | K | N/A | Vanderwerf, Davidson, et al., 1948 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 13.0 ± 0.2 | kcal/mol | C | Bickerton, Minas Da Piedade, et al., 1984 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.5 | 384. | A | Stephenson and Malanowski, 1987 | Based on data from 369. to 463. K. See also Stull, 1947.; AC |
11.5 | 390. | N/A | Kudchadker, Kudchadker, et al., 1979 | Based on data from 375. to 463. K.; 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 |
---|---|---|---|---|---|
369.5 to 462.7 | 3.3946 | 1152.616 | -123.007 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.944 | 363.2 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.441 | 320. | Domalski and Hearing, 1996 | CAL |
2.600 | 363.2 |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.594 | 320.0 | crystaline, II | crystaline, I | Marshall, Staveley, et al., 1956 | DH |
1.420 | 320.0 | crystaline, II | crystaline, I | Frederick and Hildebrand, 1939 | DH |
0.9450 | 363.2 | crystaline, I | liquid | Frederick and Hildebrand, 1939 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
4.981 | 320.0 | crystaline, II | crystaline, I | Marshall, Staveley, et al., 1956 | DH |
4.438 | 320.0 | crystaline, II | crystaline, I | Frederick and Hildebrand, 1939 | DH |
2.603 | 363.2 | crystaline, I | liquid | Frederick and Hildebrand, 1939 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Silver and Rudman, 1970
Silver, L.; Rudman, R.,
Polymorphism of the Crystalline Methylchloromethane Compounds. A Differential Scanning Calorimetric Study,
J. Phys. Chem., 1970, 74, 3134-9. [all data]
Sharpe and Walker, 1962
Sharpe, A.N.; Walker, S.,
Molecular interaction: polarisation studies of mixtures of pyridine with polyhalogenated hydrocarbons,
J. Chem. Soc., 1962, 1962, 157. [all data]
Vanderwerf, Davidson, et al., 1948
Vanderwerf, C.A.; Davidson, A.W.; Michaelis, C.I.,
Compound Formation Betwee 2,6-Lutidine and Polyhalogenated Methanes,
J. Am. Chem. Soc., 1948, 70, 908. [all data]
Bickerton, Minas Da Piedade, et al., 1984
Bickerton, J.; Minas Da Piedade, M.E.; Pilcher, G.,
Enthalpy of formation of tetrabromomethane by rotating-bomb calorimetry,
J. Chem. Thermodyn., 1984, 16, 661-668. [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]
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]
Kudchadker, Kudchadker, et al., 1979
Kudchadker, A.P.; Kudchadker, S.A.; Shukla, R.P.; Patnaik, P.R.,
Vapor pressures and boiling points of selected halomethanes,
J. Phys. Chem. Ref. Data, 1979, 8, 2, 499, https://doi.org/10.1063/1.555600
. [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]
Marshall, Staveley, et al., 1956
Marshall, J.G.; Staveley, L.A.K.; Hart, K.R.,
A thermodynamic investigation of the transitions in carbon tetrabromide and ammonium chloride,
Trans. Faraday Soc., 1956, 52, 19-31. [all data]
Frederick and Hildebrand, 1939
Frederick, K.J.; Hildebrand, J.H.,
Specific heats and heats of fusion and transition of carbon tetrabromide,
J. Am. Chem. Soc., 1939, 61, 1555-1558. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion 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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