1,4-Benzodioxin, 2,3-dihydro-
- Formula: C8H8O2
- Molecular weight: 136.1479
- IUPAC Standard InChI: InChI=1S/C8H8O2/c1-2-4-8-7(3-1)9-5-6-10-8/h1-4H,5-6H2
- IUPAC Standard InChIKey: BNBQRQQYDMDJAH-UHFFFAOYSA-N
- CAS Registry Number: 493-09-4
- 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: 1,4-Benzodioxan; Benzene, 1,2-[1,2-ethanediylbis(oxy)]-; Ethylene o-phenylene dioxide; Pyrocatechol ethylene ether; 1,2-(Ethylenedioxy)benzene; 1,4-Benzodioxane; 1,4-Dioxatetralin
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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:
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 |
|---|---|---|---|---|---|
| ΔvapH° | 16.1 ± 0.41 | kcal/mol | C | Matos, Sousa, et al., 2008 | AC |
| ΔvapH° | 12.05 | kcal/mol | V | Cass, Fletcher, et al., 1958 | ALS |
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 376.2 | 0.008 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 12.0 | 415. | A | Stephenson and Malanowski, 1987 | Based on data from 400. to 486. K.; AC |
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.
Matos, Sousa, et al., 2008
Matos, M. Agostinha R.; Sousa, Clara C.S.; Morais, Victor M.F.,
Experimental and Computational Thermochemistry of 1,4-Benzodioxan and its 6-R Derivatives,
J. Phys. Chem. A, 2008, 112, 34, 7961-7968, https://doi.org/10.1021/jp803579y
. [all data]
Cass, Fletcher, et al., 1958
Cass, R.C.; Fletcher, S.E.; Mortimer, C.T.; Quincey, P.G.; Springall, H.D.,
Heats of combustion and molecular structure. Part VI. The structure of some cyclic ethers of o-dihydroxybenzene,
J. Chem. Soc., 1958, 2595-2597. [all data]
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]
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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling 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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