Ethyl bromide
- Formula: C2H5Br
- Molecular weight: 108.965
- IUPAC Standard InChIKey: RDHPKYGYEGBMSE-UHFFFAOYSA-N
- CAS Registry Number: 74-96-4
- 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: Ethane, bromo-; Bromic ether; Bromoethane; Hydrobromic ether; Monobromoethane; C2H5Br; 1-Bromoethane; Bromure d'ethyle; Etylu bromek; Halon 2001; NCI-C55481; UN 1891; NSC 8824
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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 311.5 ± 0.4 | K | AVG | N/A | Average of 15 out of 16 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 155. ± 2. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 503.8 | K | N/A | Majer and Svoboda, 1985 | |
Tc | 503.95 | K | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 62.3149 | bar | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.8106 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.65 | mol/l | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 28.26 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 28. ± 1. | kJ/mol | V | Lane, Linnett, et al., 1953 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
27.04 | 311.6 | N/A | Majer and Svoboda, 1985 | |
26.9 | 349. | A | Stephenson and Malanowski, 1987 | Based on data from 334. to 504. K.; AC |
26.6 | 341. | A | Stephenson and Malanowski, 1987 | Based on data from 326. to 454. K.; AC |
31.0 | 467. | A | Stephenson and Malanowski, 1987 | Based on data from 452. to 503. K.; AC |
30.6 | 240. | E | Stephenson and Malanowski, 1987 | Based on data from 225. to 333. K. See also Li and Rossini, 1961 and Dykyj, 1970.; AC |
27.6 ± 0.1 | 305. | C | Svoboda, Majer, et al., 1977 | AC |
27.0 ± 0.1 | 312. | C | Svoboda, Majer, et al., 1977 | AC |
26.2 ± 0.1 | 323. | C | Svoboda, Majer, et al., 1977 | AC |
27.9 | 316. | N/A | Zmaczynski, 1930 | Based on data from 301. to 348. K. See also Boublik, Fried, et al., 1984.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
305. to 323. | 49.38 | 0.3807 | 503.8 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
301.29 to 348.51 | 4.11241 | 1121.371 | -38.478 | Zmaczynski, 1930, 2 | Coefficents calculated by NIST from author's data. |
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.
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]
Herz and Neukirch, 1923
Herz, W.; Neukirch, E.,
On Knowldge of the Critical State,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1923, 104, 433-50. [all data]
Lane, Linnett, et al., 1953
Lane, M.R.; Linnett, J.W.; Oswin, H.G.,
A study of the C2H4+HCl=C2H5Cl and C2H4+Hbr=C2H5Br equilibria,
Proc. Roy. Soc. London A, 1953, 216, 361-374. [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]
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]
Li and Rossini, 1961
Li, J.C.M.; Rossini, F.D.,
Vapor Pressures and Boiling Points of the l-Fluoroalkanes, l-Chloroalkanes, l-Bromoalkanes, and l-Iodoalkanes, C 1 to C 20 .,
J. Chem. Eng. Data, 1961, 6, 2, 268-270, https://doi.org/10.1021/je60010a025
. [all data]
Dykyj, 1970
Dykyj, J.,
Petrochemica, 1970, 10, 2, 51. [all data]
Svoboda, Majer, et al., 1977
Svoboda, V.; Majer, V.; Veselý, F.; Pick, J.,
Heats of vaporization of alkyl bromides,
Collect. Czech. Chem. Commun., 1977, 42, 6, 1755-1760, https://doi.org/10.1135/cccc19771755
. [all data]
Zmaczynski, 1930
Zmaczynski, M.A.,
J. Chim. Phys. Phys.-Chim. Biol., 1930, 27, 503. [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]
Zmaczynski, 1930, 2
Zmaczynski, M.A.,
Recherches Ebullioscopiques et Tonometriques Comparatives de 8 Substances Organiques Etalons,
J. Chim. Phys. Phys. Chim. Biol., 1930, 27, 503-517. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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