1,2-Dibromopentane
- Formula: C5H10Br2
- Molecular weight: 229.941
- IUPAC Standard InChIKey: CITMYAPULDSOHG-UHFFFAOYSA-N
- CAS Registry Number: 3234-49-9
- 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: Pentane, 1,2-dibromo-
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Condensed 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -39.38 | kcal/mol | Eqk | Rozhnov, Alenin, et al., 1974 |
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:
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 12. | kcal/mol | N/A | Pisarev, Rozhnov, et al., 1975 | Based on data from 350. to 450. K. See also Basarová and Svoboda, 1991.; AC |
ΔvapH° | 11.8 ± 0.2 | kcal/mol | EB | Pisarev, Rozhnov, et al., 1975 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.1 | 363. | A | Stephenson and Malanowski, 1987 | Based on data from 348. to 465. K.; AC |
11.7 | 307. | A | Stephenson and Malanowski, 1987 | Based on data from 292. to 448. K. See also Stull, 1947.; 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 |
---|---|---|---|---|---|
292.9 to 448. | 4.63343 | 1875.567 | -43.328 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Reaction 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C5H10Br2 = C5H10Br2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1.4 ± 0.1 | kcal/mol | Eqk | Rozhnov, Nesterova, et al., 1974 | liquid phase; Heat of isomerization |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rozhnov, Alenin, et al., 1974
Rozhnov, A.M.; Alenin, V.I.; Nesterova, T.N.,
Equilibrium in the isomerisation of dibromoalkanes. IV. Isomerisation of dibromohexanes and heats of formation of certain C5-C10 dibromoalkanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 1701-1702. [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]
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]
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]
Rozhnov, Nesterova, et al., 1974
Rozhnov, A.M.; Nesterova, T.N.; Alenin, V.I.; Uskova, L.A.,
Equilibria in the isomerisation of dibromoalkanes. I. Isomerisation of 1,2-, 1,3-, 1,4-, and 1,5-dibromopentanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 1268, In original 2136. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions 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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