Naphthalene, 1,2-dihydro-
- Formula: C10H10
- Molecular weight: 130.1864
- IUPAC Standard InChI: InChI=1S/C10H10/c1-2-6-10-8-4-3-7-9(10)5-1/h1-3,5-7H,4,8H2
- IUPAC Standard InChIKey: KEIFWROAQVVDBN-UHFFFAOYSA-N
- CAS Registry Number: 447-53-0
- 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: Dialin; δ1-Dialin; 1,2-Dialin; 1,2-Dihydronaphthalene; Diolin
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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
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 13.1 ± 0.02 | kcal/mol | IP,EB | Chirico and Steele, 2008 | AC |
| ΔvapH° | 12.4 ± 0.1 | kcal/mol | GS | Verevkin, 1999 | Based on data from 274. to 319. K.; AC |
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 362.2 | 0.021 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 12.8 ± 0.02 | 320. | IP,EB | Chirico and Steele, 2008 | AC |
| 12.1 ± 0.02 | 360. | IP,EB | Chirico and Steele, 2008 | AC |
| 11.6 ± 0.02 | 400. | IP,EB | Chirico and Steele, 2008 | AC |
| 11.0 ± 0.02 | 440. | IP,EB | Chirico and Steele, 2008 | AC |
| 12.4 ± 0.1 | 296. | GS | Verevkin, 1999 | Based on data from 274. to 319. K.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 2.517 | 264.4 | AC | Chirico and Steele, 2008 | Authors report two solid/solid phase transitions having negligible enthalpy of transition; 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.
Chirico and Steele, 2008
Chirico, Robert D.; Steele, William V.,
Thermodynamic properties of 1,2-dihydronaphthalene: Glassy crystals and missing entropy,
The Journal of Chemical Thermodynamics, 2008, 40, 5, 806-817, https://doi.org/10.1016/j.jct.2008.01.009
. [all data]
Verevkin, 1999
Verevkin, Sergey P.,
Thermochemical investigation on α-methyl-styrene and parent phenyl substituted alkenes,
Thermochimica Acta, 1999, 326, 1-2, 17-25, https://doi.org/10.1016/S0040-6031(98)00585-1
. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion 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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