1,3-Dimethyl-5-ethyluracil
- Formula: C8H12N2O2
- Molecular weight: 168.1931
- IUPAC Standard InChI: InChI=1S/C8H12N2O2/c1-4-6-5-9(2)8(12)10(3)7(6)11/h5H,4H2,1-3H3
- IUPAC Standard InChIKey: RGFNQXKFHSVDHI-UHFFFAOYSA-N
- CAS Registry Number: 31703-08-9
- Chemical structure:
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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 by: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 98.7 ± 1.7 | 316. | ME | Kami nski and Zielenkiewicz, 1996 | Based on data from 312. - 321. K. |
| 99.3 ± 0.2 | 308. | ME | Colomina, Jimenez, et al., 1983 | Based on data from 300. - 316. K. |
| 110. ± 1.2 | 330. | QR | Colomina, Jimenez, et al., 1983 | Based on data from 319. - 340. K. |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference |
|---|---|---|
| 19.4 | 354.4 | Kami nski and Zielenkiewicz, 1996 |
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.
Kami nski and Zielenkiewicz, 1996
Kami nski, Miron; Zielenkiewicz, Wojciech,
Vapour pressures and molar enthalpies of sublimation for 5-alkyl derivatives of 1,3-dimethyluracil,
The Journal of Chemical Thermodynamics, 1996, 28, 2, 153-158, https://doi.org/10.1006/jcht.1996.0013
. [all data]
Colomina, Jimenez, et al., 1983
Colomina, Manuel; Jimenez, Pilar; Turrion, Concepcion; Kaminski, Miron; Zielenkiewicz, Wojciech,
Vapour pressures and enthalpies of sublimation of 1,3-dimethyl-5-ethyluracil and 1,3-dimethyl-5,6-pentamethyleneuracil,
Thermochimica Acta, 1983, 68, 2-3, 371-374, https://doi.org/10.1016/0040-6031(83)80239-1
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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