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1,3,5-Triazine-2,4,6-triamine

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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
Deltafsolid-66.1 ± 3.3kJ/molCcbSelivanov, Karlik, et al., 1973Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -64.22 kJ/mol; ALS
Deltafsolid-86.86kJ/molCcbBaroody and Carpenter, 1972ALS
Deltafsolid-71.7 ± 2.0kJ/molCcbTavernier and Lamouroux, 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -68.78 kJ/mol; Author's hf298_condensed=-17.976 kcal/mol; ALS
Deltafsolid-71.67kJ/molCcbSalley and Gray, 1951correction of Salley and Gray, 1948; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-1972. ± 3.kJ/molCcbSelivanov, Karlik, et al., 1973ALS
Deltacsolid-2008.94kJ/molCcbHandrick, 1956ALS
Deltacsolid-1966.4 ± 2.0kJ/molCcbTavernier and Lamouroux, 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -1969.26 kJ/mol; Author's hf298_condensed=-17.976 kcal/mol; ALS
Deltacsolid-1966.4kJ/molCcbSalley and Gray, 1951correction of Salley and Gray, 1948; ALS
Quantity Value Units Method Reference Comment
solid,1 bar149.08J/mol*KN/AStephenson and Berets, 1952DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
156.11299.95Stephenson and Berets, 1952T = 15 to 300 K. Value is unsmoothed experimental datum.; DH

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

6Urea = 1,3,5-Triazine-2,4,6-triamine + 3Carbon dioxide + 6Ammonia

By formula: 6CH4N2O = C3H6N6 + 3CO2 + 6H3N

Quantity Value Units Method Reference Comment
Deltar469.4kJ/molEqkRukevich and Zagranichnyi, 1971liquid phase

References

Go To: Top, Condensed phase thermochemistry 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.

Selivanov, Karlik, et al., 1973
Selivanov, V.D.; Karlik, V.M.; Zagranicnyi, V.I., Standard enthalpies of formation ammeline, ammelide, melem, and melon, Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 272. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]

Baroody and Carpenter, 1972
Baroody, E.E.; Carpenter, G.A., Heats of formation of propellant compounds (U), Rpt. Naval Ordnance Systems Command Task No. 331-003/067-1/UR2402-001 for Naval Ordance Station, Indian Head, MD, 1972, 1-9. [all data]

Tavernier and Lamouroux, 1956
Tavernier, P.; Lamouroux, M., Determinations calorimetriques relatives a vingt-six substances organiques, Mem. Poudres, 1956, 38, 65-88. [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]

Rukevich and Zagranichnyi, 1971
Rukevich, O.S.; Zagranichnyi, V.I., Equilibrium in the reaction of melamine formation from urea, J. Anal. Chem. USSR, 1971, 44, 1616-1620. [all data]


Notes

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