Urea, N,N-diphenyl-
- Formula: C13H12N2O
- Molecular weight: 212.2472
- IUPAC Standard InChI: InChI=1S/C13H12N2O/c14-13(16)15(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H2,14,16)
- IUPAC Standard InChIKey: XKAFKUGMXFMRCC-UHFFFAOYSA-N
- CAS Registry Number: 603-54-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Diphenyl urea; Urea, 1,1-diphenyl-; 1,1-Diphenylurea; Asym-diphenylurea
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Condensed phase thermochemistry data
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -29.33 ± 0.81 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -26.4 kcal/mol; Author's hf291_condensed=-32.6 kcal/mol |
| ΔfH°solid | -13.0 | kcal/mol | Ccb | Schmidt and Becker, 1933 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1603.22 ± 0.80 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1606.2 kcal/mol; Author's hf291_condensed=-32.6 kcal/mol |
| ΔcH°solid | -1621.1 | kcal/mol | Ccb | Schmidt and Becker, 1933 |
Phase change data
Go To: Top, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 463.6 | K | N/A | Medard and Thomas, 1952, 2 | Uncertainty assigned by TRC = 0.00001 K |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Medard and Thomas, 1952
Medard, L.; Thomas, M.,
Determination des chaleurs de combustion de douze composes organiques utilises dans les poudres et enplosies,
Mem. Poudres, 1952, 34, 421-442. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Schmidt and Becker, 1933
Schmidt, V.A.; Becker, F.,
Die Bildungswarme von Nitrocellulofen, Nitroglycerin und anderen widuigen Beltandteilen von Treibmitteln,
Z. Gesamte Schiess Sprengstoffwes., 1933, 33, 280-282. [all data]
Medard and Thomas, 1952, 2
Medard, L.; Thomas, M.,
Meml. Poudres, 1952, 34, 421. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.