- Formula: C10H14
- Molecular weight: 134.2182
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: HFPZCAJZSCWRBC-UHFFFAOYSA-N
- CAS Registry Number: 99-87-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Benzene, 1-methyl-4-(1-methylethyl)-; p-Cimene; p-Cymol; p-Isopropyltoluene; p-Methylisopropylbenzene; Camphogen; Dolcymene; 1-Isopropyl-4-methylbenzene; 1-Methyl-4-isopropylbenzene; 2-p-Tolylpropane; 4-Isopropyl-1-methylbenzene; 1-Methyl-4-(1-methylethyl)-benzene; Benzene, 1-isopropyl-4-methyl-; Cumene, p-methyl-; p-Isopropylmethylbenzene; Paracymene; Paracymol; p-Methylcumene; 4-Isopropyltoluene; 4-Methylisopropylbenzene; 1-(1-methylethyl)-4-methylbenzene; benzene, 1-methyl-4-methylethyl-; p-Mentha-1,3,5-triene; NSC 4162; Cymene; Cymol
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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
|fH°liquid||-18.65 ± 0.27||kcal/mol||Ccb||Good, 1973||ALS|
|fH°liquid||-18.73 ± 0.51||kcal/mol||Ccb||Prosen, Johnson, et al., 1946||ALS|
|cH°liquid||-1400.07 ± 0.24||kcal/mol||Ccb||Good, 1973||Corresponding «DELTA»fHºliquid = -18.65 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS|
|cH°liquid||-1400.01 ± 0.53||kcal/mol||Ccb||Prosen, Johnson, et al., 1946||Corresponding «DELTA»fHºliquid = -18.71 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS|
|S°liquid||73.30||cal/mol*K||N/A||Huffman, Parks, et al., 1931||Extrapolation below 90 K, 80.00 J/mol*K.; DH|
Constant pressure heat capacity of liquid
|Cp,liquid (cal/mol*K)||Temperature (K)||Reference||Comment|
|57.91||298.||Kurbatov, 1947||T = 10 to 166°C, mean Cp, four temperatures.; DH|
|56.50||297.1||Huffman, Parks, et al., 1931||T = 92 to 297 K. Value is unsmoothed experimental datum.; DH|
Go To: Top, Condensed phase thermochemistry data, Notes
Good, W.D., The enthalpies of combustion and formation of n-butylbenzene, the diethylbenzenes, the methyl-n-propylbenzenes, and the methyl-iso-propylbenzenes, J. Chem. Thermodyn., 1973, 5, 707-714. [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]
Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]
Kurbatov, V.Ya., Specific heat of liquids. I. Specific heat of benzenoid hydrocarbons, Zhur. Obshch. Khim., 1947, 17, 1999-2003. [all data]
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 cH°liquid Enthalpy of combustion of liquid at standard conditions fH°liquid Enthalpy of formation of liquid at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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