Styrene
- Formula: C8H8
- Molecular weight: 104.1491
- IUPAC Standard InChI: InChI=1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
- IUPAC Standard InChIKey: PPBRXRYQALVLMV-UHFFFAOYSA-N
- CAS Registry Number: 100-42-5
- 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: Benzene, ethenyl-; Bulstren K-525-19; Cinnamene; Phenethylene; Phenylethene; Phenylethylene; Styrol (German); Styrole; Styrolene; Styropol SO; Vinylbenzene; Vinylbenzol; Ethenylbenzene; Cinnaminol; Cinnamol; Styrol; Benzene, vinyl-; Cinnamenol; Ethylene, phenyl-; NCI-C02200; Stirolo; Styreen; Styren; Styrene monomer; Vinylbenzen; Annamene; NSC 62785; ethenylbenzene (styrene); Vinylbenzene (styrene)
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | 24.72 ± 0.22 | kcal/mol | Ccb | Prosen and Rossini, 1945 | ALS |
| ΔfH°liquid | 25.8 | kcal/mol | Ccb | Landrieu, Baylocq, et al., 1929 | ALS |
| ΔfH°liquid | 20.9 ± 0.96 | kcal/mol | Ccb | N/A | recalculated with modern CO2,H2O thermo; estimated uncertainty (NOTE all values in source also have wrong sign); DRB |
| ΔfH°liquid | -14.0 | kcal/mol | Ccb | Moureu and Andre, 1914 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1050. ± 10. | kcal/mol | AVG | N/A | Average of 9 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 57.48 | cal/mol*K | N/A | Warfield and Petree, 1961 | DH |
| S°liquid | 56.781 | cal/mol*K | N/A | Pitzer, Guttman, et al., 1946 | DH |
| S°liquid | 56.79 | cal/mol*K | N/A | Guttman and Westrum, 1943 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 43.79 | 298.15 | Lebedev, Lebedev, et al., 1985 | DH |
| 43.64 | 298.16 | Warfield and Petree, 1961 | T = 10 to 300 K.; DH |
| 56.31 | 298. | Kurbatov, 1950 | T = 21 to 139 C.; DH |
| 43.700 | 298.15 | Pitzer, Guttman, et al., 1946 | T = 15 to 300 K.; DH |
| 43.00 | 298.5 | Smith and Andrews, 1931 | T = 102 to 299 K. Value is unsmoothed experimental datum.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D.,
Heats of formation and combustion of 1,3-butadiene and styrene,
J. Res. NBS, 1945, 34, 59-63. [all data]
Landrieu, Baylocq, et al., 1929
Landrieu, P.; Baylocq, F.; Johnson, J.R.,
Etude thermochimique dans la serie furanique,
Bull. Soc. Chim. France, 1929, 45, 36-49. [all data]
Moureu and Andre, 1914
Moureu, C.; Andre, E.,
Thermochimie des composes acetyleniques,
Ann. Chim. Phys., 1914, 1, 113-145. [all data]
Warfield and Petree, 1961
Warfield, R.W.; Petree, M.C.,
Thermodynamic properties of polystyrene and styrene,
J. Polymer Sci., 1961, 55, 497-505. [all data]
Pitzer, Guttman, et al., 1946
Pitzer, K.S.; Guttman, L.; Westrum, E.F.,
Jr., The heat capacity, heats of fusion and vaporization, vapor pressure, entropy vibration frequencies and barrier to internal rotation of styrene,
J. Am. Chem. Soc., 1946, 68, 2209-2212. [all data]
Guttman and Westrum, 1943
Guttman, L.; Westrum, E.F.,
Jr., and Pitzer, K.S., The thermodynamics of styrene (phenylethylene), including equilibrium of formation from ethylbenzene,
J. Am. Chem. Soc., 1943, 65, 1246-1247. [all data]
Lebedev, Lebedev, et al., 1985
Lebedev, B.V.; Lebedev, N.K.; Smirnova, N.N.; Kozyreva, N.M.; Kirillin, A.I.; Korshak, V.V.,
The isotope effect in the thermodynamic parameters of polymerization of styrene,
Dokl. Akad. Nauk, 1985, SSSR 281, 379-383. [all data]
Kurbatov, 1950
Kurbatov, V.Ya.,
Specific heats of liquids. III. Specific heat of hydrocarbons with several noncondensed rings,
Zhur. Obshch. Khim., 1950, 20, 1139-1144. [all data]
Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H.,
Thermal energy studies. I. Phenyl derivatives of methane,
ethane and some related compounds. J. Am. Chem. Soc., 1931, 53, 3644-3660. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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