Urea, N,N-diphenyl-

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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

Quantity Value Units Method Reference Comment
Δfsolid-122.7 ± 3.4kJ/molCcbMedard and Thomas, 1952Reanalyzed by Cox and Pilcher, 1970, Original value = -110. kJ/mol; Author's hf291_condensed=-32.6 kcal/mol
Δfsolid-54.4kJ/molCcbSchmidt and Becker, 1933 
Quantity Value Units Method Reference Comment
Δcsolid-6707.9 ± 3.3kJ/molCcbMedard and Thomas, 1952Reanalyzed by Cox and Pilcher, 1970, Original value = -6720.3 kJ/mol; Author's hf291_condensed=-32.6 kcal/mol
Δcsolid-6782.7kJ/molCcbSchmidt and Becker, 1933 

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: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tfus463.6KN/AMedard and Thomas, 1952, 2Uncertainty assigned by TRC = 0.00001 K

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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

Benzene, isocyanato- + Aniline = Urea, N,N-diphenyl-

By formula: C7H5NO + C6H7N = C13H12N2O

Quantity Value Units Method Reference Comment
Δr-82.5 ± 2.0kJ/molCmKiselev, Malkov, et al., 1989liquid phase; solvent: Dioxane

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-8141
NIST MS number 230461

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UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Lohse, et al., 1978
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 18372
Instrument Unicam

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, 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]

Kiselev, Malkov, et al., 1989
Kiselev, V.D.; Malkov, V.B.; Murzin, D.G.; Shakirov, I.M.; Konovalov, A.I., Thermochemical study of the reaction of isocyanate with amines, Dokl. Phys. Chem. (Engl. Transl.), 1989, 308, 711-713, In original 111. [all data]

Lohse, et al., 1978
Lohse, D., et al., Z. phys. Chem. (Leipzig), 1978, 259, 762. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, References