Urea, N,N'-dimethyl-N,N'-diphenyl-
- Formula: C15H16N2O
- Molecular weight: 240.3003
- IUPAC Standard InChIKey: ADCBKYIHQQCFHE-UHFFFAOYSA-N
- CAS Registry Number: 611-92-7
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Carbanilide, N,N'-dimethyl-; Centralit II; Centralite II; Centralite-2; Methyl centralite; N,N'-Dimethyl-N,N'-diphenylurea; N,N'-Dimethylcarbanilide; 1,3-Dimethyl-1,3-diphenylurea; Zentralit II; NSC 59781
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Condensed phase thermochemistry data
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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 | -17.5 ± 1.9 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -14.2 kcal/mol; Author's hf291_condensed=-21.5 kcal/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1944.9 | kcal/mol | Ccb | Handrick, 1956 | War Powder Commission of Versailles, Report of 24 May 1930 |
ΔcH°solid | -1939.8 ± 1.9 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1943.1 kcal/mol; Author's hf291_condensed=-21.5 kcal/mol |
ΔcH°solid | -1930. | kcal/mol | Ccb | Taylor, Hall, et al., 1947 | At 290 °K, Direct measure of Hc=-1948.5 kcal/mol |
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 |
---|---|---|---|---|---|
Tfus | 394.6 | K | N/A | Medard and Thomas, 1952, 2 | Uncertainty assigned by TRC = 0.00001 K |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, 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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | WYANDOTTE CHEMICALS CORP., WYANDOTTE, MICHIGAN, USA |
Source reference | COBLENTZ NO. 2869 |
Date | Not specified, most likely prior to 1970 |
Name(s) | N,N'-dimethyl-N,N'-diphenylurea |
State | SOLID (MINERAL OIL MULL) |
Instrument | Not specified, most likely a prism, grating, or hybrid spectrometer. |
Path length | SPECTRAL CONTAMINATION DUE TO OIL AROUND 2900 CM-1 |
Resolution | 4 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY NIST FROM HARD COPY |
Melting point | 120-122 C |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Gas Chromatography, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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-2243 |
NIST MS number | 234254 |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | OV-101 | 1766. | Alley and Dykes, 1972 | 6. K/min; Tstart: 70. C; Tend: 220. C |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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]
Handrick, 1956
Handrick, G.R.,
Report of the study of pure explosive compounds. Part IV. Calculation of heat of combustion of organic compounds from structural features and calculation of power of high explosives, Rpt. C-58247 for the Office of the Chief of Ordnance, contract DA-19-020-ORD-47 by the Arthur D. Little, Inc., Cambridge, MA, 1956, 467-573. [all data]
Taylor, Hall, et al., 1947
Taylor, J.; Hall, C.R.L.; Thomas, H.,
The thermochemistry of propellent explosives,
J. Phys. Colloid Chem., 1947, 51, 580-592. [all data]
Medard and Thomas, 1952, 2
Medard, L.; Thomas, M.,
Meml. Poudres, 1952, 34, 421. [all data]
Alley and Dykes, 1972
Alley, B.J.; Dykes, H.W.H.,
Gas-Liquid Chromatographic Determination of Nitrate Esters,Stabilizers and Plasticizers in Nitrocellulose-Base Propellants,
J. Chromatogr., 1972, 71, 1, 23-37, https://doi.org/10.1016/S0021-9673(01)85687-9
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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
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