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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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°liquid | -5193.1 ± 1.3 | kJ/mol | Ccb | Johnson, Prosen, et al., 1945 | Corresponding ΔfHºliquid = -63.43 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -5202.7 | kJ/mol | Ccb | Richards and Barry, 1915 | At 291 K; Corresponding ΔfHºliquid = -53.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 273.55 | J/mol*K | N/A | Taylor and Kilpatrick, 1955 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
207.85 | 298.15 | Grolier, Roux-Desgranges, et al., 1993 | DH |
205.5 | 294.99 | Andolenko and Grigor'ev, 1979 | T = 295 to 424 K. Unsmoothed experimental datum given as 1.710 kJ/kg*K.; DH |
207.66 | 298.15 | Wilhelm, Faradjzadeh, et al., 1979 | DH |
207.686 | 298.15 | Fortier and Benson, 1977 | DH |
206.5 | 298. | Recko, 1968 | T = 24 to 40°C. Equation only.; DH |
201.46 | 299.8 | Helfrey, Heiser, et al., 1955 | T = 80 to 220°F.; DH |
209.33 | 298.15 | Taylor and Kilpatrick, 1955 | T = 20 to 305 K.; DH |
213.0 | 298. | Kurbatov, 1947 | T = 15 to 155°C, mean Cp, five temperatures.; DH |
211.3 | 298. | von Reis, 1881 | T = 292 to 403 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.
Johnson, Prosen, et al., 1945
Johnson, W.H.; Prosen, E.J.; Rossini, F.D.,
Heats of combustion and isomerization of the eight C9H12 alkylbenzenes,
J. Res. NBS, 1945, 35, 141-146. [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]
Taylor and Kilpatrick, 1955
Taylor, R.D.; Kilpatrick, J.E.,
Entropy, heat capacity, heats of transition of 1,3,5-trimethylbenzene,
J. Chem. Phys., 1955, 23, 1232-1235. [all data]
Grolier, Roux-Desgranges, et al., 1993
Grolier, J.-P.E.; Roux-Desgranges, G.; Berkane, M.; Jimenez, E.; Wilhelm, E.,
Heat capacities and densities of mixtures of very polar substances 2. Mixtures containing N,N-dimethylformamide,
J. Chem. Thermodynam., 1993, 25(1), 41-50. [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]
Wilhelm, Faradjzadeh, et al., 1979
Wilhelm, E.; Faradjzadeh, A.; Grolier, J.-P.E.,
Molar excess heat capacities and excess volumes of 1,2-dichloroethane + cyclooctane, + mesitylene, and + tetrachloromethane,
J. Chem. Thermodynam., 1979, 11, 979-984. [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]
Recko, 1968
Recko, W.M.,
Excess heat capacity of the binary systems formed by n-propyl alcohol with benzene, mesitylene and cyclohexane,
Bull. Acad. Pol. Sci. Ser. Sci. Chim., 1968, 16, 549-552. [all data]
Helfrey, Heiser, et al., 1955
Helfrey, P.F.; Heiser, D.A.; Sage, B.H.,
Isobaric heat capacities at bubble point, Two trimethylbenzenes and n-heptane,
Ind. Eng. Chem., 1955, 44, 2385-2388. [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]
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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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