o-Xylene
- Formula: C8H10
- Molecular weight: 106.1650
- IUPAC Standard InChI: InChI=1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3
- IUPAC Standard InChIKey: CTQNGGLPUBDAKN-UHFFFAOYSA-N
- CAS Registry Number: 95-47-6
- 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, 1,2-dimethyl-; o-Dimethylbenzene; o-Methyltoluene; o-Xylol; 1,2-Dimethylbenzene; 1,2-Xylene; 3,4-Xylene; ortho-Xylene; NSC 60920; 2-Methyltoluene; UN 1307; 1,2-dimethyl-benzene ( o-xylene)
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Critical pressure
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Pc (atm) | Reference | Comment |
|---|---|---|
| 36.8 ± 0.4 | Tsonopoulos and Ambrose, 1995 | |
| 36.830 | Ambrose, 1987 | Uncertainty assigned by TRC = 0.05 atm; TRC |
| 37.05 | Pak and Kay, 1972 | Uncertainty assigned by TRC = 0.1020 atm; corrected for vapor pressure of Hg; TRC |
| 37.583 | Mamedov, Akhundov, et al., 1970 | Uncertainty assigned by TRC = 0.79 atm; TRC |
| 39.5376 | Ambrose, Broderick, et al., 1967 | Uncertainty assigned by TRC = 0.06 atm; TRC |
| 31.5000 | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 0.015 atm; TRC |
| 35.73 | Altschul, 1893 | Uncertainty assigned by TRC = 0.0968 atm; TRC |
References
Go To: Top, Critical pressure, Notes
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]
Pak and Kay, 1972
Pak, S.C.; Kay, W.B.,
Gas-Liquid Critical Temperatures of Mixtures. Benzene + n-Alkanes and Hexafluorobenzene + n-Alkanes,
Ind. Eng. Chem. Fundam., 1972, 11, 255. [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
Go To: Top, Critical pressure, References
- Symbols used in this document:
Pc Critical pressure - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.