Benzene, tert-butyl-
- Formula: C10H14
- Molecular weight: 134.2182
- IUPAC Standard InChIKey: YTZKOQUCBOVLHL-UHFFFAOYSA-N
- CAS Registry Number: 98-06-6
- 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, (1,1-dimethylethyl)-; tert-Butylbenzene; Dimethylethylbenzene; Phenyltrimethylmethane; Pseudobutylbenzene; Trimethylphenylmethane; 2-Methyl-2-Phenylpropane; 1,1-Dimethylethyl-benzene; t-Butylbenzene; 2-Phenyl-2-methylpropane; Benzene, t-butyl-; NSC 6557; α-dimethylethylbenzene
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -22.7 ± 1.4 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 |
Condensed 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -70.8 ± 1.3 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -5865.2 ± 1.1 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | Corresponding ΔfHºliquid = -70.71 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -5856.76 | kJ/mol | Ccb | Richards and Davis, 1920 | At 291 K; Corresponding ΔfHºliquid = -79.15 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -5859.6 | kJ/mol | Ccb | Richards and Barry, 1915 | At 291 K; Corresponding ΔfHºliquid = -76.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 278.7 | J/mol*K | N/A | Huffman, Parks, et al., 1930 | Extrapolation below 90 K, 67.70 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
238.11 | 294.3 | Huffman, Parks, et al., 1930 | T = 92 to 294 K. Value is unsmoothed experimental datum.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed 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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 442. ± 2. | K | AVG | N/A | Average of 47 out of 48 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 215. ± 2. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 215.0 | K | N/A | Huffman, Parks, et al., 1930, 2 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 48. ± 1. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
45.3 ± 0.2 | 340. | EB | Steele, Chirico, et al., 2002 | Based on data from 332. to 486. K.; AC |
42.6 ± 0.2 | 380. | EB | Steele, Chirico, et al., 2002 | Based on data from 332. to 486. K.; AC |
39.9 ± 0.3 | 420. | EB | Steele, Chirico, et al., 2002 | Based on data from 332. to 486. K.; AC |
37.0 ± 0.5 | 460. | EB | Steele, Chirico, et al., 2002 | Based on data from 332. to 486. K.; AC |
47.8 ± 0.4 | 293. | GS | Verevkin, 1998 | Based on data from 278. to 308. K.; AC |
43.1 | 383. | A | Stephenson and Malanowski, 1987 | Based on data from 368. to 444. K.; AC |
43.7 | 372. | N/A | Forziati, Norris, et al., 1949 | Based on data from 357. to 443. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
357.03 to 443.31 | 4.0454 | 1504.572 | -69.822 | Forziati, Norris, et al., 1949, 2 |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.4 | 215.3 | DSC,AC | Chirico and Steele, 2009 | AC |
8.41 | 215. | N/A | Domalski and Hearing, 1996 | AC |
8.397 | 215.0 | N/A | Huffman, Parks, et al., 1930 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
39.06 | 215.0 | Huffman, Parks, et al., 1930 | DH |
References
Go To: Top, Gas phase thermochemistry data, Condensed 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.
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]
Richards and Davis, 1920
Richards, T.W.; Davis, H.S.,
The heats of combustion of benzene, toluene, aliphatic alcohols, cyclohexanol, and other carbon compounds,
J. Am. Chem. Soc., 1920, 42, 1599-1617. [all data]
Richards and Barry, 1915
Richards, T.W.; Barry, F.,
The heats of combustion of aromatic hydrocarbons and hexamethylene,
J. Am. Chem. Soc., 1915, 37, 993-1020. [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]
Huffman, Parks, et al., 1930, 2
Huffman, H.M.; Parks, G.S.; Thomas, S.B.,
Thermal Data on Organic Compounds. VII The Heat Capacities, Entropies and Free Energies of the Isomeric Heptanes,
J. Am. Chem. Soc., 1930, 52, 3241. [all data]
Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor Pressure, Heat Capacity, and Density along the Saturation Line: Measurements for Benzenamine, Butylbenzene, sec -Butylbenzene, tert -Butylbenzene, 2,2-Dimethylbutanoic Acid, Tridecafluoroheptanoic Acid, 2-Butyl-2-ethyl-1,3-propanediol, 2,2,4-Trimethyl-1,3-pentanediol, and 1-Chloro-2-propanol,
J. Chem. Eng. Data, 2002, 47, 4, 648-666, https://doi.org/10.1021/je010083e
. [all data]
Verevkin, 1998
Verevkin, Sergey P.,
Thermochemical properties of branched alkylsubstituted benzenes,
The Journal of Chemical Thermodynamics, 1998, 30, 8, 1029-1040, https://doi.org/10.1006/jcht.1998.0370
. [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]
Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D.,
Vapor pressures and boiling points of sixty API-NBS hydrocarbons,
J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050
. [all data]
Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D.,
Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons,
J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050
. [all data]
Chirico and Steele, 2009
Chirico, Robert D.; Steele, William V.,
Thermodynamic properties of tert-butylbenzene and 1,4-di-tert-butylbenzene,
The Journal of Chemical Thermodynamics, 2009, 41, 3, 392-401, https://doi.org/10.1016/j.jct.2008.10.008
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy 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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