Ethane, 1,1-dibromo-
- Formula: C2H4Br2
- Molecular weight: 187.861
- IUPAC Standard InChI: InChI=1S/C2H4Br2/c1-2(3)4/h2H,1H3
- IUPAC Standard InChIKey: APQIUTYORBAGEZ-UHFFFAOYSA-N
- CAS Registry Number: 557-91-5
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Ethylidene dibromide; 1,1-Dibromoethane; CH3CHBr2; Ethylidene bromide; Dibromoethane
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 381.2 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 382.65 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.7 K; TRC |
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: C2H4Br2 = C2H4Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -3.12 ± 0.13 | kcal/mol | Eqk | Izmailov, Rozhnov, et al., 1974 | gas phase |
| ΔrH° | 2.90 ± 0.30 | kcal/mol | Eqk | Levanova, Rozhnov, et al., 1970 | gas phase; Heat of isomerization at 484 K |
2 =
+
By formula: 2C2H4BrCl = C2H4Br2 + C2H4Cl2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.9 ± 0.1 | kcal/mol | Eqk | Busheva, Levanova, et al., 1980 | gas phase; Dehydrohalogenation |
=
+
By formula: C2H4Br2 = HBr + C2H3Br
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16.8 ± 0.6 | kcal/mol | Eqk | Levanova, Rozhnov, et al., 1970 | gas phase |
References
Go To: Top, 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.
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]
Lecat, 1947
Lecat, M.,
Some azeotropes of which one constituant is heterocyclic nitrogen,
Ann. Soc. Sci. Bruxelles, Ser. 1, 1947, 61, 73. [all data]
Izmailov, Rozhnov, et al., 1974
Izmailov, V.D.; Rozhnov, A.M.; Sharonov, K.G.,
Equilibrium in the isomerisation of 1,1-dibromoethane and 1,1-dibromopropane,
Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 289-290. [all data]
Levanova, Rozhnov, et al., 1970
Levanova, S.V.; Rozhnov, A.M.; Sedov, S.M.; Starkov, V.Ya.; Manzohos, V.N.,
Equilibrium reactions of dibromoethane,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1970, 13, 62-65. [all data]
Busheva, Levanova, et al., 1980
Busheva, L.I.; Levanova, S.V.; Rodova, R.M.; Rozhnov, A.M.,
Thermocatalytic reactions of 1,1-bromochloroethane,
Russ. J. Phys. Chem. (Engl. Transl.), 1980, 54, 1403-1404. [all data]
Notes
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- Symbols used in this document:
Tboil Boiling point ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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