propyl-2-thiourea
- Formula: C4H10N2O
- Molecular weight: 102.1350
- IUPAC Standard InChI: InChI=1S/C4H10N2S/c1-2-3-6-4(5)7/h2-3H2,1H3,(H3,5,6,7)
- IUPAC Standard InChIKey: UHGKYJXJYJWDAM-UHFFFAOYSA-N
- CAS Registry Number: 927-67-3
- 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. - Other names: N-propylurea
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 24.2 ± 0.1 | kcal/mol | GS | Emel'yanenko, Kabo, et al., 2006 | Based on data from 333. to 357. K. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 21.7 ± 0.24 | 366. | Piacente, Ferro, et al., 1990 | Based on data from 332. to 373. K. See also Ferro, Barone, et al., 1987. |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 2.84 | 370.2 | DSC | Hashimoto, Tajima, et al., 2005 |
| 3.566 | 383. | DSC | Ferloni and Gatta, 1995 |
| 3.497 | 381. | N/A | Acree, 1991 |
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.
Emel'yanenko, Kabo, et al., 2006
Emel'yanenko, Vladimir N.; Kabo, Gennady J.; Verevkin, Sergey P.,
Measurement and Prediction of Thermochemical Properties: Improved Increments for the Estimation of Enthalpies of Sublimation and Standard Enthalpies of Formation of Alkyl Derivatives of Urea,
J. Chem. Eng. Data, 2006, 51, 1, 79-87, https://doi.org/10.1021/je050230z
. [all data]
Piacente, Ferro, et al., 1990
Piacente, V.; Ferro, D.; Gatta, G. Della,
Sublimation enthalpy of eleven alkyl derivatives of urea,
Thermochimica Acta, 1990, 158, 1, 79-85, https://doi.org/10.1016/0040-6031(90)80054-3
. [all data]
Ferro, Barone, et al., 1987
Ferro, D.; Barone, G.; Della Gatta, G.; Piacente, V.,
Vapour pressures and sublimation enthalpies of urea and some of its derivatives,
The Journal of Chemical Thermodynamics, 1987, 19, 9, 915-923, https://doi.org/10.1016/0021-9614(87)90038-3
. [all data]
Hashimoto, Tajima, et al., 2005
Hashimoto, Masao; Tajima, Fukue; Eda, Kazuo; Yamamura, Kimiaki; Okazaki, Tadashi,
Exploration of plastic-like phases in alkylurea systems. A thermal and X-ray study,
Journal of Molecular Structure, 2005, 734, 1-3, 23-33, https://doi.org/10.1016/j.molstruc.2004.08.008
. [all data]
Ferloni and Gatta, 1995
Ferloni, Paolo; Gatta, Giuseppe Della,
Heat capacities of urea, N-methylurea, N-ethylurea, N-(n)propylurea, and N-(n)butylurea in the range 200 to 360 K,
Thermochimica Acta, 1995, 266, 203-212, https://doi.org/10.1016/0040-6031(95)02453-0
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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