p-Xylene
- Formula: C8H10
- Molecular weight: 106.1650
- IUPAC Standard InChI: InChI=1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3
- IUPAC Standard InChIKey: URLKBWYHVLBVBO-UHFFFAOYSA-N
- CAS Registry Number: 106-42-3
- 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, 1,4-dimethyl-; p-Dimethylbenzene; p-Xylol; 1,4-Dimethylbenzene; 1,4-Xylene; p-Methyltoluene; para-Xylene; Chromar; Scintillar; 4-Methyltoluene; NSC 72419; UN 1307; 1,4-dimethyl-benzene ( p-xylene)
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Critical pressure
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Pc (bar) | Reference | Comment |
|---|---|---|
| 35.1 ± 0.2 | Tsonopoulos and Ambrose, 1995 | |
| 35.107 | Ambrose, 1987 | Uncertainty assigned by TRC = 0.05 bar; TRC |
| 36.175 | Mamedov, Akhundov, et al., 1970 | Uncertainty assigned by TRC = 1.00 bar; TRC |
| 35.11 | Ambrose, Broderick, et al., 1967 | Uncertainty assigned by TRC = 0.00006 bar; TRC |
| 33.4373 | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 1.5199 bar; TRC |
| 34.30 | Altschul, 1893 | Uncertainty assigned by TRC = 0.0784 bar; TRC |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Tsonopoulos and Ambrose, 1995
Tsonopoulos, C.; Ambrose, D.,
Vapor-Liquid Critical Properties of Elements and Compounds. 3. Aromatic Hydrocarbons,
J. Chem. Eng. Data, 1995, 40, 547-558. [all data]
Ambrose, 1987
Ambrose, D.,
Vapor Pressures of Some Aromatic Hydrocarbons,
J. Chem. Thermodyn., 1987, 19, 1007. [all data]
Mamedov, Akhundov, et al., 1970
Mamedov, A.M.; Akhundov, T.S.; Imanov, Sh.Yu.,
Equations for the vapour pressures of o- and p-xylenes,
Russ. J. Phys. Chem. (Engl. Transl.), 1970, 44, 877-8. [all data]
Ambrose, Broderick, et al., 1967
Ambrose, D.; Broderick, B.E.; Townsend, R.,
The Vapour Pressures above the Normal Boiling Point and the Critical Pressures of Some Aromatic Hydrocarbons,
J. Chem. Soc. , 1967, 1967, 1967, 633-41. [all data]
Glaser and Ruland, 1957
Glaser, F.; Ruland, H.,
Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
Chem. Ing. Techn., 1957, 29, 772. [all data]
Altschul, 1893
Altschul, M.,
The critical values of some organic compounds,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [all data]
Notes
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- Symbols used in this document:
Pc Critical pressure - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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