Hexahydro-1,3,5-trinitroso-1,3,5-triazine

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Gas 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
Δfgas395.kJ/molCcbPepekin, Matyushin, et al., 1974 

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
Δfsolid286.kJ/molCcbMedard and Thomas, 1949Author's hf298_condensed=66.8 kcal/mol
Δfsolid285.9 ± 2.3kJ/molCcbDelepine and Badoche, 1942Reanalyzed by Cox and Pilcher, 1970, Original value = 289. kJ/mol; Author's hf298_condensed=68.0 kcal/mol
Quantity Value Units Method Reference Comment
Δcsolid-2316.kJ/molCcbHandrick, 1956 
Δcsolid-2313.3 ± 2.1kJ/molCcbYoung, Keith, et al., 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -2323. ± 2. kJ/mol
Δcsolid-2323.9kJ/molCcbMedard and Thomas, 1949Author's hf298_condensed=66.8 kcal/mol
Δcsolid-2323.9 ± 2.3kJ/molCcbDelepine and Badoche, 1942Reanalyzed by Cox and Pilcher, 1970, Original value = -2327. kJ/mol; Author's hf298_condensed=68.0 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Quantity Value Units Method Reference Comment
Tfus376.KN/AHall, 1971Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Δsub134.3 ± 0.7kJ/molMECundall, Frank Palmer, et al., 1978Based on data from 343. to 447. K.; AC
Δsub113.kJ/molVPepekin, Matyushin, et al., 1974ALS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
112.1383. to 411.MEPepekin, Matyushin, et al., 1974AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
3.77376.Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
48.45367.Domalski and Hearing, 1996CAL
10.02376.

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:


References

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

Pepekin, Matyushin, et al., 1974
Pepekin, V.I.; Matyushin, Yu.N.; Lebedev, Yu.A., Thermochemistry of N-nitro- and N-nitrosoamines of the alicyclic series, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1974, 1707-1710. [all data]

Medard and Thomas, 1949
Medard, L.; Thomas, M., Determinations calorimetriques concernant dix-huit derives nitres ou nitrates organiques., Mem. Poudres, 1949, 29, 173-195. [all data]

Delepine and Badoche, 1942
Delepine, M.; Badoche, M., Thermochimie de l'aldehyde formique, de l'hexamethylene-tetramine et de ses derive, C. R. Acad. Sci. Paris, 1942, 214, 777-780. [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]

Young, Keith, et al., 1956
Young, J.A.; Keith, J.E.; Stehle, P.; Dzombak, W.C.; Hunt, H., Heats of combustion of some organic nitrogen compounds, Ind. Eng. Chem., 1956, 48, 1375-1378. [all data]

Hall, 1971
Hall, P.G., Thermal decomposition and phase transition in solid nitramines, Trans. Faraday Soc., 1971, 67, 556-62. [all data]

Cundall, Frank Palmer, et al., 1978
Cundall, Robert B.; Frank Palmer, T.; Wood, Colin E.C., Vapour pressure measurements on some organic high explosives, J. Chem. Soc., Faraday Trans. 1, 1978, 74, 0, 1339, https://doi.org/10.1039/f19787401339 . [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]


Notes

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