Naphthalene, 2-ethyl-
- Formula: C12H12
- Molecular weight: 156.2237
- IUPAC Standard InChI: InChI=1S/C12H12/c1-2-10-7-8-11-5-3-4-6-12(11)9-10/h3-9H,2H2,1H3
- IUPAC Standard InChIKey: RJTJVVYSTUQWNI-UHFFFAOYSA-N
- CAS Registry Number: 939-27-5
- 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: β-Ethylnaphthalene; 2-Ethylnaphthalene
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Gas 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 46.95 | 50. | Thermodynamics Research Center, 1997 | p=1 bar. A combination of experimental and estimated molecular parameters was used in this statistical thermodynamics calculation. |
| 71.73 | 100. | ||
| 97.41 | 150. | ||
| 124.6 | 200. | ||
| 167.3 | 273.15 | ||
| 182.3 | 298.15 | ||
| 183.4 | 300. | ||
| 240.5 | 400. | ||
| 289.5 | 500. | ||
| 329.7 | 600. | ||
| 362.6 | 700. | ||
| 389.8 | 800. | ||
| 412.6 | 900. | ||
| 431.8 | 1000. | ||
| 448.2 | 1100. | ||
| 462.2 | 1200. | ||
| 474.2 | 1300. | ||
| 484.5 | 1400. | ||
| 493.4 | 1500. |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 527. ± 6. | K | AVG | N/A | Average of 15 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 308. | K | N/A | Kochetkov, Nifant'ev, et al., 1957 | Uncertainty assigned by TRC = 3. K; TRC |
| Tfus | 265.7 | K | N/A | Adkins and Davis, 1949 | Uncertainty assigned by TRC = 2. K; TRC |
| Tfus | 265.8 | K | N/A | Koelbel, 1949 | Uncertainty assigned by TRC = 1. K; TRC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 64.7 | 398. | GC | Lei, Chankalal, et al., 2002 | Based on data from 323. to 473. K.; AC |
| 69.3 | 284. | N/A | Sasse, Jose, et al., 1988 | Based on data from 269. to 398. K.; AC |
| 61.9 | 301. | A | Stephenson and Malanowski, 1987 | Based on data from 286. to 319. K.; AC |
| 56.7 | 408. | A | Stephenson and Malanowski, 1987 | Based on data from 393. to 565. K.; AC |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Kochetkov, Nifant'ev, et al., 1957
Kochetkov, N.K.; Nifant'ev, E.E.; Nesmeyanov, A.N.,
Cyclic Acetals of β-Oxoaldehydes and Their Use in Synthesis of Alkylnaphthalenes,
Izv. Akad. Nauk S.S.S.R., 1957, 1957, 949-55. [all data]
Adkins and Davis, 1949
Adkins, H.; Davis, J.W.,
Catalytic Dehydrogenation of Hydroaromatic Compounds in Benzene II.,
J. Am. Chem. Soc., 1949, 71, 2955. [all data]
Koelbel, 1949
Koelbel, H.,
Alkylnaphthalenes as Lubricating-oil Models,
Brennst.-Chem., 1949, 30, 73-80. [all data]
Lei, Chankalal, et al., 2002
Lei, Ying Duan; Chankalal, Raymond; Chan, Anita; Wania, Frank,
Supercooled Liquid Vapor Pressures of the Polycyclic Aromatic Hydrocarbons,
J. Chem. Eng. Data, 2002, 47, 4, 801-806, https://doi.org/10.1021/je0155148
. [all data]
Sasse, Jose, et al., 1988
Sasse, Karim; Jose, Jacques; Merlin, Jean-Claude,
A static apparatus for measurement of low vapor pressures. Experimental results on high molecular-weight hydrocarbons,
Fluid Phase Equilibria, 1988, 42, 287-304, https://doi.org/10.1016/0378-3812(88)80065-7
. [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, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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