1,3-Propylthiourea
- Formula: C7H16N2S
- Molecular weight: 160.280
- CAS Registry Number: 26536-60-7
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 342.7 | K | N/A | Terenzi and Piacente, 1994 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 32.2 ± 0.7 | kcal/mol | B | Della Gatta, Józwiak, et al., 2000 | AC |
| ΔsubH° | 31.67 ± 0.72 | kcal/mol | C | Terenzi and Piacente, 1994, 2 | AC |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 25.6 ± 0.72 | 370. | ME,TE | Terenzi and Piacente, 1994, 2 | Based on data from 346. to 394. K.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 5.47 | 342.6 | DSC | Della Gatta, Józwiak, et al., 2000 | 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.
Terenzi and Piacente, 1994
Terenzi, L.; Piacente, V.,
vapour pressures and vaporization enthalpies of thiourea and a homologous series of its 1,3-dialkyl derivatives,
Thermochim. Acta, 1994, 235, 61-6. [all data]
Della Gatta, Józwiak, et al., 2000
Della Gatta, Giuseppe; Józwiak, Malgorzata; Brunetti, Bruno; Abate, Lorenzo,
Enthalpies and entropies of fusion and of sublimation at the temperature 298.15 K of thiourea and sevenN-alkylthioureas,
The Journal of Chemical Thermodynamics, 2000, 32, 8, 979-997, https://doi.org/10.1006/jcht.2000.0662
. [all data]
Terenzi and Piacente, 1994, 2
Terenzi, L.; Piacente, V.,
Vapour pressures and vaporization enthalpies of thiourea and a homologous series of its 1,3-dialkyl derivatives,
Thermochimica Acta, 1994, 235, 1, 61-66, https://doi.org/10.1016/0040-6031(94)80083-9
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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