p-Xylene
- Formula: C8H10
- Molecular weight: 106.1650
- 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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Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.)
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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
ΔvapH° (kJ/mol) | Method | Reference | Comment |
---|---|---|---|
42.42 | N/A | Majer and Svoboda, 1985 | |
42.3 | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 373. to 423. K.; AC |
43.0 ± 0.1 | N/A | Smith, 1990 | Based on data from 293. to 323. K.; AC |
42.35 ± 0.10 | V | Messerly, Finke, et al., 1988 | ALS |
42.3 ± 0.01 | N/A | Messerly, Finke, et al., 1988, 2 | AC |
42.3 ± 0.1 | C | Hossenlopp and Scott, 1981 | AC |
42.6 | N/A | Ambrose, Ellender, et al., 1974 | AC |
42.4 | N/A | Reid, 1972 | AC |
42.719 | V | Andon, Cox, et al., 1957 | ALS |
35.9 | C | Glaser and Ruland, 1957 | ALS |
42.4 ± 0.1 | C | Osborne and Ginnings, 1947 | AC |
42.37 | C | Osborne and Ginnings, 1947, 2 | ALS |
42.3 | N/A | Prosen, Johnson, et al., 1946 | DRB |
36.0 ± 0.08 | V | Mathews, 1926 | ALS |
References
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G.,
Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times,
Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3
. [all data]
Smith, 1990
Smith, Norman O.,
Vapor pressures of 1,4-dimethylbenzene, 1,4-di(methyl-d3)benzene, and 1,4-dimethylbenzene-d10 at 20-50.degree.C,
J. Chem. Eng. Data, 1990, 35, 4, 387-389, https://doi.org/10.1021/je00062a004
. [all data]
Messerly, Finke, et al., 1988
Messerly, J.F.; Finke, H.L.; Good, W.D.; Gammon, B.E.,
Condensed-phase heat capacities and derived thermodynamic properties for 1,4-dimethylbenzene, 1,2-diphenylethane, and 2,3-dimethylnaphthalene,
J. Chem. Thermodyn., 1988, 20, 485. [all data]
Messerly, Finke, et al., 1988, 2
Messerly, J.F.; Finke, H.L.; Good, W.D.; Gammon, B.E.,
Condensed-phase heat capacities and derived thermodynamic properties for 1,4-dimethylbenzene, 1,2-diphenylethane, and 2,3-dimethylnaphthalene,
J. Chem. Thermodynam., 1988, 20, 485-501. [all data]
Hossenlopp and Scott, 1981
Hossenlopp, I.A.; Scott, D.W.,
Vapor heat capacities and enthalpies of vaporization of four aromatic and/or cycloalkane hydrocarbons,
J. Chem. Thermodyn., 1981, 13, 423-428. [all data]
Ambrose, Ellender, et al., 1974
Ambrose, D.; Ellender, J.H.; Sprake, C.H.S.,
Thermodynamic properties of organic oxygen compounds XXXV. Vapour pressures of aliphatic alcohols,
The Journal of Chemical Thermodynamics, 1974, 6, 9, 909-914, https://doi.org/10.1016/0021-9614(74)90235-3
. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Andon, Cox, et al., 1957
Andon, R.J.L.; Cox, J.D.; Herington, E.F.G.; Martin, J.F.,
The second virial coefficients of pyridine and benzene, and certain of their methyl homologues,
Trans. Faraday Soc., 1957, 53, 1074. [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]
Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C.,
Measurements of heat of vaporization and heat capacity of a number of hydrocarbons,
J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031
. [all data]
Osborne and Ginnings, 1947, 2
Osborne, N.S.; Ginnings, D.C.,
Measurements of heat of vaporization and heat capacity of a number of hydrocarbons,
J. Res. NBS, 1947, 39, 453-477. [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]
Mathews, 1926
Mathews, J.H.,
The accurate measurement of heats of vaporization of liquids,
J. Am. Chem. Soc., 1926, 48, 562-576. [all data]
Notes
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), References
- Symbols used in this document:
ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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