Isoxazole
- Formula: C3H3NO
- Molecular weight: 69.0620
- IUPAC Standard InChIKey: CTAPFRYPJLPFDF-UHFFFAOYSA-N
- CAS Registry Number: 288-14-2
- 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: 1-Oxa-2-azacyclopentadiene; Isooxazole
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Phase change data
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 367.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 368.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 590. | K | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 3. K; fitting parameter in Wagner equation for vapor pressure; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 61.00 | bar | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 4.00 bar; from extrapolation of obs. vapor pressure to Tc; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 5.237 | mol/l | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 0.29 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 37.24 ± 0.22 | kJ/mol | V | Steele, Chirico, et al., 1996, 2 | ALS |
ΔvapH° | 37.2 ± 0.2 | kJ/mol | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 314. to 404. K.; AC |
ΔvapH° | 36.4 ± 0.04 | kJ/mol | C | McCormick and Hamilton, 1978 | see McCormick, 1977; ALS |
ΔvapH° | 36.5 ± 0.1 | kJ/mol | C | McCormick and Hamilton, 1978 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Steele, Chirico, et al., 1996
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K.; Tasker, I.R.,
Thermodynamic Properties and Ideal-Gas Enthalpies of Formation for Dioctylamine, trioctylamine, Phenyl Isocyanate, and 1,4,5,6-Tetrahydropyrimidine,
J. Chem. Eng. Data, 1996, 41, 1269-84. [all data]
Steele, Chirico, et al., 1996, 2
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K.; Tasker, I.R.,
Thermodynamic properties and ideal-gas enthalpies of formation for cyclohexene, phthalan (2,5-dihydrobenzo-3,4-furan), isoxazole, octylamine, dioctylamine, trioctylamine, phenyl isocyanate, and 1,4,5,6-tetrahydropyrimidine,
J. Chem. Eng. Data, 1996, 41, 1269-1284. [all data]
McCormick and Hamilton, 1978
McCormick, D.G.; Hamilton, W.S.,
The enthalpies of combustion and formation of oxazole and isoxazole,
J. Chem. Thermodyn., 1978, 10, 275-278. [all data]
McCormick, 1977
McCormick, D.G.,
The resonance energies of oxazole and isoxazole determined from the enthalpies of combustion and formation (Order No. 7801771),
Diss. Abstr. Int. B, 1977, 38, 4271. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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