Urea, phenyl-
- Formula: C7H8N2O
- Molecular weight: 136.1512
- IUPAC Standard InChIKey: LUBJCRLGQSPQNN-UHFFFAOYSA-N
- CAS Registry Number: 64-10-8
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Monophenylurea; N-Phenylurea; Phenylcarbamide; Phenylurea; Stabilisator VH; Stabilizer VH; VH; 1-Phenylurea; PC; NSC 2781; Urea, N-phenyl
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Condensed phase thermochemistry data
Go To: Top, Gas phase ion energetics 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 | -231.5 ± 2.2 | kJ/mol | Ccb | Kulagina and Kiparisova, 1987 | |
ΔfH°solid | -218.6 ± 2.4 | kJ/mol | Ccb | Simirsky, Kabo, et al., 1987 | Heat of combustion is not reported |
ΔfH°solid | -215. | kJ/mol | Ccb | Schmidt and Becker, 1933 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -3666.4 ± 2.2 | kJ/mol | Ccb | Kulagina and Kiparisova, 1987 | |
ΔcH°solid | -3684. | kJ/mol | Ccb | Schmidt and Becker, 1933 |
Gas phase ion energetics 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
8.55 | EI | Baldwin, Loudon, et al., 1976 |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H7N+ | 10.1 | ? | EI | Baldwin, Loudon, et al., 1976 | |
C7H7N2O+ | 9.50 | ? | EI | Baldwin, Loudon, et al., 1976 |
References
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kulagina and Kiparisova, 1987
Kulagina, T.G.; Kiparisova, E.G.,
Enthalpies of combustion and of formation of derivatives of carbamide,
Russ. J. Phys. Chem. (Engl. Transl.), 1987, 61, 261-262. [all data]
Simirsky, Kabo, et al., 1987
Simirsky, V.V.; Kabo, G.J.; Frenkel, M.L.,
Additivity of the enthalpies of formation of urea derivatives in the crystalline state,
J. Chem. Thermodyn., 1987, 19, 1121-1127. [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]
Baldwin, Loudon, et al., 1976
Baldwin, M.A.; Loudon, A.G.; Maccoll, A.; Webb, K.S.,
The nature and fragmentation pathways of the molecular ions of some arylureas, arylthioureas, acetanilides, thioacetanilides and related compounds,
Org. Mass Spectrom., 1976, 11, 1181. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy 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
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