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Dicyandiamide

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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid5.08 ± 0.48kcal/molCcbMedard and Thomas, 1952Reanalyzed by Cox and Pilcher, 1970, Original value = 5.56 kcal/mol; Author's hf291_condensed=4.5 kcal/mol; ALS
Deltafsolid5.96kcal/molCcbSalley and Gray, 1951correction of Salley and Gray, 1948; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-329.261kcal/molCcbHandrick, 1956ALS
Deltacsolid-329.81 ± 0.48kcal/molCcbMedard and Thomas, 1952Reanalyzed by Cox and Pilcher, 1970, Original value = -330.3 kcal/mol; Author's hf291_condensed=4.5 kcal/mol; ALS
Deltacsolid-330.70kcal/molCcbSalley and Gray, 1951correction of Salley and Gray, 1948; ALS
Quantity Value Units Method Reference Comment
solid,1 bar30.901cal/mol*KN/AStephenson and Berets, 1952DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
33.9340.David, 1964T = 298 to 373 K. Mean value. T = uncertain.; DH
28.141294.63Stephenson and Berets, 1952T = 15 to 300 K. Value is unsmoothed experimental datum.; DH

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: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
30.76436.TE,MEDe Wit, Van Miltenburg, et al., 1983Based on data from 420. - 450. K.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference
5.488487.6Zhang, Tan, et al., 1997

Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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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-4978
NIST MS number 228929

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References

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

Salley and Gray, 1951
Salley, D.J.; Gray, J.B., Heats of combustion of some organic nitrogen compounds, J. Am. Chem. Soc., 1951, 73, 5925. [all data]

Salley and Gray, 1948
Salley, D.J.; Gray, J.B., Heats of combustion of some organic nitrogen compounds, J. Am. Chem. Soc., 1948, 70, 2650-2653. [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]

Stephenson and Berets, 1952
Stephenson, C.C.; Berets, D.J., The heat capacities and entropies of melamine and dicyandiamide, J. Am. Chem. Soc., 1952, 74, 882-883. [all data]

David, 1964
David, D.J., Determination of specific heat and heat of fusion by differential thermal analysis. Study of theory and operating parameters, Anal. Chem., 1964, 36, 2162-2166. [all data]

De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation, The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4 . [all data]

Zhang, Tan, et al., 1997
Zhang, Ji-Biao; Tan, Zhi-Cheng; Meng, Shuang-He; Li, Shao-Hui; Zhang, Li-Ming, Heat capacity and thermal decomposition of dicyandiamide, Thermochimica Acta, 1997, 307, 1, 11-15, https://doi.org/10.1016/S0040-6031(97)00323-7 . [all data]


Notes

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