Morpholine
- Formula: C4H9NO
- Molecular weight: 87.1204
- IUPAC Standard InChI: InChI=1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2
- IUPAC Standard InChIKey: YNAVUWVOSKDBBP-UHFFFAOYSA-N
- CAS Registry Number: 110-91-8
- 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: p-Isoxazine, tetrahydro-; BASF 238; Diethylene Imidoxide; Diethylene oximide; Diethylenimide oxide; Tetrahydro-p-oxazine; Tetrahydro-1,4-oxazine; Tetrahydro-2H-1,4-oxazine; 1-Oxa-4-azacyclohexane; 2H-1,4-Oxazine, tetrahydro-; 4H-1,4-Oxazine, tetrahydro-; Diethyleneimide oxide; Tetrahydro-1,4-isoxazine; Drewamine; NA 2054; UN 2054; NSC 9376
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -44.6 ± 0.1 | kcal/mol | Ccr | Gutner, Masalitinova, et al., 1982 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -639.0 ± 0.1 | kcal/mol | Ccr | Gutner, Masalitinova, et al., 1982 | ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 39.39 | 298.15 | Lyashkov, 1980 | T = 293 to 353 K. Data given graphically. Cp value calculated from equation: Cp(J/g*K) = 1.785 + 0.00427 T(°C).; DH |
| 41.561 | 298. | Trimble, Engle, et al., 1942 | T = 273 to 403 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Gutner, Masalitinova, et al., 1982
Gutner, N.M.; Masalitinova, T.N.; Mon'yakova, O.N.; Lebedeva, N.D.,
Heats of combustion and formation of some cyclic compounds,
Termodin. Organ. Soedin., 1982, 46-49. [all data]
Lyashkov, 1980
Lyashkov, V.I.,
Thermal characteristics of morpholine, Izv. Vyssh. Uchebn.,
Khim. Khim. Tekhnol., 1980, 23, 1085-1086. [all data]
Trimble, Engle, et al., 1942
Trimble, H.M.; Engle, C.J.; Brown, R.A.; Schmuck, R.F.,
The specific heats of morpholine and its aqueous solutions,
J. Am. Chem. Soc., 1942, 64, 679-681. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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