Urea, N,N'-diphenyl-

• Formula: C₁₃H₁₂N₂O
• Molecular weight: 212.2472
• IUPAC Standard InChI: InChI=1S/C13H12N2O/c16-13(14-11-7-3-1-4-8-11)15-12-9-5-2-6-10-12/h1-10H,(H2,14,15,16) Copy

  
• IUPAC Standard InChIKey: GWEHVDNNLFDJLR-UHFFFAOYSA-N Copy
• CAS Registry Number: 102-07-8
• 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: Carbanilide; s-Diphenylurea; N-Phenyl-N'-phenylurea; N,N'-Diphenylurea; sym-Diphenylurea; 1,3-Diphenylurea; Acardite I; Urea, 1,3-diphenyl-; USAF EK-534; Acardite; N,N'-Difenylmocovina; Karbanilid; Diphenylurea; Diphenylcarbamide; 1,3-Diphenylcarbamide; AD 30; NSC 227401
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
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Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

=  + 

By formula: C₁₃H₁₂N₂O = C₇H₅NO + C₆H₇N

 +  =

By formula: C₇H₅NO + C₆H₇N = C₁₃H₁₂N₂O

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Ferro and DellaGatta, 1987
Ferro, D.; DellaGatta, G., Enthalpies of Subl. and Fusion of Monophenyl and Diphenyl-1,3-urea, Thermochim. Acta, 1987, 122, 189. [all data]

Sabatier and Mailhe, 1909
Sabatier, P.; Mailhe, A., New Applications of the General Method of Hydrogenation with Various Metals, Ann. Chim. Phys., 1909, 16, 70. [all data]

Ferro and Della Gatta, 1987
Ferro, D.; Della Gatta, G., Enthalpies of sublimation and fusion of monophenylurea and diphenyl-1,3-urea, Thermochim. Acta, 1987, 122, 189-195. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [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]

Chimishkyan, Svetlova, et al., 1984
Chimishkyan, A.L.; Svetlova, L.P.; Leonova, T.V.; Gluyaev, N.D., Thermal decomposition of substituted ureas, J. Gen. Chem. USSR, 1984, 54, 1317-1320. [all data]

Pannone and Macosko, 1987
Pannone, M.C.; Macosko, C.W., Kinetics of isocyanate amine reactions, J. Appl. Polym. Sci., 1987, 34, 2409-2432. [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation

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