Ethylbenzene
- Formula: C8H10
- Molecular weight: 106.1650
- IUPAC Standard InChIKey: YNQLUTRBYVCPMQ-UHFFFAOYSA-N
- CAS Registry Number: 100-41-4
- 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. - Isotopologues:
- Other names: Benzene, ethyl-; Ethylbenzol; EB; Phenylethane; Aethylbenzol; Ethylbenzeen; Etilbenzene; Etylobenzen; NCI-C56393; UN 1175; α-Methyltoluene; NSC 406903
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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 | -12.5 ± 0.84 | kJ/mol | Ccb | Prosen, Gilmont, et al., 1945 | Hf by Prosen, Johnson, et al., 1946; ALS |
ΔfH°liquid | 6.8 ± 4.0 | kJ/mol | Ccb | N/A | recalculated with modern CO2,H2O thermo; estimated uncertainty (NOTE all values in source also have wrong sign); DRB |
ΔfH°liquid | 27. | kJ/mol | Ccb | Moureu and Andre, 1914 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4567. ± 20. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 255.01 | J/mol*K | N/A | Guthrie, Spitzer, et al., 1944 | DH |
S°liquid | 256.1 | J/mol*K | N/A | Huffman, Parks, et al., 1930 | Extrapolation below 90 K, 61.09 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
184.8 | 293.31 | Andolenko and Grigor'ev, 1979 | T = 293 to 393 K. Unsmoothed experimental datum given as 1.741 kJ/kg*K.; DH |
185.572 | 298.15 | Fortier and Benson, 1979 | DH |
185.559 | 298.15 | Fortier and Benson, 1977 | DH |
185.78 | 298.15 | Fortier, Benson, et al., 1976 | DH |
161. | 295. | Tschamler, 1948 | DH |
185.8 | 298. | Kurbatov, 1947 | T = 15 to 18 C, mean Cp, four temperatures.; DH |
186.04 | 298.15 | Scott and Brickwedde, 1945 | T = 15 to 300 K.; DH |
185.81 | 298.15 | Guthrie, Spitzer, et al., 1944 | T = 13 to 305 K.; DH |
178.7 | 302.8 | de Kolossowsky and Udowenko, 1934 | DH |
178.7 | 302.7 | Kolosovskii and Udovenko, 1934 | DH |
186.6 | 298.15 | Blacet, Leighton, et al., 1931 | T = 286 to 368 K. Heat capacity reported as 0.420 cal g-1 K-1 at 25 C.; DH |
183.7 | 298.5 | Smith and Andrews, 1931 | T = 102 to 299 K. Value is unsmoothed experimental datum.; DH |
181.6 | 297.4 | Huffman, Parks, et al., 1930 | T = 93 to 305 K. Value is unsmoothed experimental datum.; DH |
181.6 | 303. | Willams and Daniels, 1924 | T = 303 to 343 K. Equation only.; DH |
184.5 | 298. | von Reis, 1881 | T = 292 to 425 K.; 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, Gilmont, et al., 1945
Prosen, E.J.; Gilmont, R.; Rossini, F.D.,
Heats of combustion of benzene, toluene, ethyl-benzene, o-xylene, m-xylene, p-xylene, n-propylbenzene, and styrene,
J. Res. NBS, 1945, 34, 65-70. [all data]
Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D.,
Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes,
J. Res. NBS, 1946, 36, 455-461. [all data]
Moureu and Andre, 1914
Moureu, C.; Andre, E.,
Thermochimie des composes acetyleniques,
Ann. Chim. Phys., 1914, 1, 113-145. [all data]
Guthrie, Spitzer, et al., 1944
Guthrie, G.B., Jr.; Spitzer, R.W.; Huffman, H.M.,
Thermal data. XVIII. The heat capacity, heat of fusion, entropy and free energy of ethylbenzene,
J. Am. Chem. Soc., 1944, 66, 2120-2121. [all data]
Huffman, Parks, et al., 1930
Huffman, H.M.; Parks, G.S.; Daniels, A.C.,
Thermal data on organic compounds. VII. The heat capacities, entropies and free energies of twelve aromatic hydrocarbons,
J. Am. Chem. Soc., 1930, 52, 1547-1558. [all data]
Andolenko and Grigor'ev, 1979
Andolenko, R.A.; Grigor'ev, B.A.,
Investigation of isobaric heat capacity of aromatic hydrocarbons at atmospheric pressure, Iaz. Vyssh. Ucheb. Zaved.,
Neft i Gaz (11), 1979, 78, 90. [all data]
Fortier and Benson, 1979
Fortier, J.-L.; Benson, G.C.,
Heat capacities of some binary aromatic hydrocarbon mixtures containing benzene or toluene,
J. Chem. Eng. Data, 1979, 24(1), 34-37. [all data]
Fortier and Benson, 1977
Fortier, J.-L.; Benson, G.C.,
Excess heat capacities of binary mixtures of tetrachloromethane witlh some aromatic liquids at 298.15 K,
J. Chem. Thermodynam., 1977, 9, 1181-1188. [all data]
Fortier, Benson, et al., 1976
Fortier, J.-L.; Benson, G.C.; Picker, P.,
Heat capacities of some organic liquids determined with the Picker flow calorimeter,
J. Chem. Thermodynam., 1976, 8, 289-299. [all data]
Tschamler, 1948
Tschamler, H.,
Uber binare flussige Mischungen I. Mischungswarment, Volumseffekte und Zustandsdiagramme von chlorex mit benzol und n-alkylbenzolen,
Monatsh. Chem., 1948, 79, 162-177. [all data]
Kurbatov, 1947
Kurbatov, V.Ya.,
Specific heat of liquids. I. Specific heat of benzenoid hydrocarbons,
Zhur. Obshch. Khim., 1947, 17, 1999-2003. [all data]
Scott and Brickwedde, 1945
Scott, R.B.; Brickwedde, F.G.,
Thermodynamic properties of solid and liquid ethylbenzene from 0 to 300K,
J. Res., 1945, NBS 35, 501-512. [all data]
de Kolossowsky and Udowenko, 1934
de Kolossowsky, N.; Udowenko, W.W.,
Determination des chaleurs specifiques des liquides,
Compt. rend., 1934, 198, 1394-1395. [all data]
Kolosovskii and Udovenko, 1934
Kolosovskii, N.A.; Udovenko, W.W.,
Specific heat of liquids. II.,
Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]
Blacet, Leighton, et al., 1931
Blacet, F.E.; Leighton, P.A.; Bartlett, E.P.,
The specific heats of five pure organic liquids and of ethyl alcohol-water mixtures,
J. Phys. Chem., 1931, 35, 1935-1943. [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]
Willams and Daniels, 1924
Willams, J.W.; Daniels, F.,
The specific heats of certain organic liquids at elevated temperatures,
J. Am. Chem. Soc., 1924, 46, 903-917. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [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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