Mesitylene
- Formula: C9H12
- Molecular weight: 120.1916
- IUPAC Standard InChIKey: AUHZEENZYGFFBQ-UHFFFAOYSA-N
- CAS Registry Number: 108-67-8
- 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, 1,3,5-trimethyl-; s-Trimethylbenzene; 1,3,5-Trimethylbenzene; sym-Trimethylbenzene; Fleet-X; TMB; UN 2325; 2,4,6-Trimethylbenzene; 3,5-Dimethyltoluene; NSC 9273; Trimethylbenzene; Trimethylbenzol; 1,3,5-trimethylbenzene (mesitylene); Trimethylbenzene (Related); Trimethylbenzol (Related)
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Gas 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 by: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°gas | 385.30 ± 0.63 | J/mol*K | N/A | Taylor R.D., 1955 |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
104.3 | 200. | Draeger, 1985 | Discrepancies with other statistically calculated values of S(T) and Cp(T) amount to 1, 2, and 3 J/mol*K for [ Thermodynamics Research Center, 1997], [ Pitzer K.S., 1943], and [ Taylor W.J., 1946], respectively. |
136.0 | 273.15 | ||
147.4 ± 0.4 | 298.15 | ||
148.3 | 300. | ||
193.7 | 400. | ||
234.6 | 500. | ||
269.2 | 600. | ||
298.2 | 700. | ||
322.7 | 800. | ||
343.5 | 900. | ||
361.2 | 1000. | ||
376.4 | 1100. | ||
389.5 | 1200. | ||
400.7 | 1300. | ||
410.4 | 1400. | ||
418.8 | 1500. |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Taylor R.D., 1955
Taylor R.D.,
Entropy, heat capacity, and heats of transition of 1,3,5-trimethylbenzene,
J. Chem. Phys., 1955, 23, 1232-1235. [all data]
Draeger, 1985
Draeger, J.A.,
The methylbenzenes II. Fundamental vibrational shifts, statistical thermodynamic functions, and properties of formation,
J. Chem. Thermodyn., 1985, 17, 263-275. [all data]
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]
Pitzer K.S., 1943
Pitzer K.S.,
The thermodynamics and molecular structure of benzene and its methyl derivatives,
J. Am. Chem. Soc., 1943, 65, 803-829. [all data]
Taylor W.J., 1946
Taylor W.J.,
Heats, equilibrium constants, and free energies of formation of the alkylbenzenes,
J. Res. Nat. Bur. Stand., 1946, 37, 95-122. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas S°gas Entropy of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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