Butane, 1,2-dibromo-
- Formula: C4H8Br2
- Molecular weight: 215.914
- IUPAC Standard InChIKey: CZWSZZHGSNZRMW-UHFFFAOYSA-N
- CAS Registry Number: 533-98-2
- 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: α-Butylene dibromide; 1,2-Dibromobutane; α-Butylene bromide
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 439.15 | K | N/A | Coffin and Maass, 1928 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tboil | 439.5 | K | N/A | Timmermans, 1927 | Uncertainty assigned by TRC = 0.5 K; source of data not clear; TRC |
Tboil | 433.15 | K | N/A | Cahours, 1850 | Uncertainty assigned by TRC = 6. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 207.7 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 10.9 ± 0.2 | kcal/mol | EB | Pisarev, Rozhnov, et al., 1975 | AC |
ΔvapH° | 11.0 | kcal/mol | N/A | Pisarev, Rozhnov, et al., 1975, 2 | Based on data from 330. to 425. K. See also Pisarev, Rozhnov, et al., 1975.; AC |
ΔvapH° | 11.44 | kcal/mol | V | Rozhnov and Nesterova, 1973 | ALS |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
332.7 | 0.026 | Aldrich Chemical Company Inc., 1990 | BS |
333. | 0.026 | Farchan Laboratories, 1990 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
10.4 | 353. | A | Stephenson and Malanowski, 1987 | Based on data from 338. to 425. K.; AC |
10.2 | 296. | A | Stephenson and Malanowski, 1987 | Based on data from 281. to 439. K. See also Stull, 1947.; AC |
10.801 | 300. | V | Lister, 1941 | ALS |
10.8 | 300. | N/A | Lister, 1941 | Based on data from 273. to 333. 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 |
---|---|---|---|---|---|
280.7 to 439.5 | 4.37615 | 1759.076 | -38.141 | Stull, 1947 | 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.
Coffin and Maass, 1928
Coffin, C.C.; Maass, O.,
The Preparation and Physical Properties of α-,β- and γ-Butylene and Normal and Isobutane,
J. Am. Chem. Soc., 1928, 50, 1427-37. [all data]
Timmermans, 1927
Timmermans, J.,
The Melting Point of Organic Substances,
Bull. Soc. Chim. Belg., 1927, 36, 502. [all data]
Cahours, 1850
Cahours, A.,
Researches on Pelargonic Acid,
J. Chem. Soc., 1850, 3, 240. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Pisarev, Rozhnov, et al., 1975
Pisarev, V.V.; Rozhnov, A.M.; Varushchenko, R.M.; Sarkisov, A.G.,
Russ. J. Phys. Chem., 1975, 49, 1450. [all data]
Pisarev, Rozhnov, et al., 1975, 2
Pisarev, V.V.; Rozhnov, A.M.; Varushchenko, R.M.; Sarkisov, A.G.,
Russ. J. Phys. Chem., 1975, 49, 1605. [all data]
Rozhnov and Nesterova, 1973
Rozhnov, A.M.; Nesterova, T.N.,
Heats of formation of dibromo-n-butanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 1390, In original 2455. [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]
Farchan Laboratories, 1990
Farchan Laboratories,
Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [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]
Lister, 1941
Lister, M.W.,
Heats of organic reactions. X. Heats of bromination of cyclic olefins,
J. Am. Chem. Soc., 1941, 63, 143-149. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point 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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