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1H-Tetrazole

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus430.7KN/AHilgeman, Mouroux, et al., 1989Uncertainty assigned by TRC = 0.4 K; TRC
Quantity Value Units Method Reference Comment
Ttriple430.KN/AKabo, Kozyro, et al., 1993Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Ttriple429.KN/AKozyro, Simirskii, et al., 1990Uncertainty assigned by TRC = 1. K; Det. with triple heat bridge; TRC
Quantity Value Units Method Reference Comment
Deltasub85. ± 3.kJ/molVBalepin, Lebedev, et al., 1977ALS
Deltasub84.0kJ/molN/ABalepin, Lebedev, et al., 1977DRB
Deltasub97.5kJ/molVZimmerman and Geisenfelder, 1961ALS

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
88.16353.CKabo, Kozyro, et al., 1993, 2AC
87.8 ± 1.4369.MEKabo, Kozyro, et al., 1993, 2AC
88.0 ± 1.6333. - 404.MEKozyro, Simirskii, et al., 1990, 2AC
97.32333.VMcEwan and Rigg, 1951ALS
97.5 ± 4.2348.MEMcEwan and Rigg, 1951Based on data from 333. - 363. K. See also Cox and Pilcher, 1970.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
18.400430.7Hilgeman, Mouroux, et al., 1989, 2DH
17.7432.1Kozyro, Simirskii, et al., 1990, 3AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.0140242.5crystaline, IIcrystaline, IKabo, Kozyro, et al., 1993, 2DH
18.000430.crystaline, IliquidKabo, Kozyro, et al., 1993, 2DH
88.160353.1crystaline, I Kabo, Kozyro, et al., 1993, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.060242.5crystaline, IIcrystaline, IKabo, Kozyro, et al., 1993, 2DH
41.9430.crystaline, IliquidKabo, Kozyro, et al., 1993, 2DH
250.353.1crystaline, I Kabo, Kozyro, et al., 1993, 2DH

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

Go To: Top, Phase change data, Notes

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

Hilgeman, Mouroux, et al., 1989
Hilgeman, F.R.; Mouroux, F.Y.N.; Mok, D.; Holan, M.K., Phase Diagrams of Binary Solid Azole Systems, J. Chem. Eng. Data, 1989, 34, 220. [all data]

Kabo, Kozyro, et al., 1993
Kabo, G.Ya.; Kozyro, A.A.; Krasulin, A.P.; Sevruk, V.M.; Ivashkevich, L.S., Thermodynamic properties and tautomerism of tetrazole, J. Chem. Thermodyn., 1993, 25, 485. [all data]

Kozyro, Simirskii, et al., 1990
Kozyro, A.A.; Simirskii, V.V.; Kabo, G.Y.; Frenkel, M.L.; Krasulin, A.P.; Sevruk, V.M.; Sokolov, N.A., Additivity of the thermochemical characteristics of tetraalklyl-substituted carbamides, Zh. Fiz. Khim., 1990, 64, 2360. [all data]

Balepin, Lebedev, et al., 1977
Balepin, A.A.; Lebedev, V.P.; Miroshnichenko, E.A.; Koldobskii, G.I.; Ostovskii, V.A.; Larionov, B.P.; Gidaspov, B.V.; Lebedev, Yu.A., Energy effects in polyphenylenes and phenyltetrazoles, Svoistva Veshchestv Str. Mol., 1977, 93-98. [all data]

Zimmerman and Geisenfelder, 1961
Zimmerman, H.; Geisenfelder, H., Uber die Mesomerieenergie von Azolen, Z. Electrochem., 1961, 65, 368-371. [all data]

Kabo, Kozyro, et al., 1993, 2
Kabo, G.J.; Kozyro, A.A.; Krasulin, A.P.; Sevruk, V.M.; Ivashkevich, L.S., Thermodynamic properties and tautomerism of tetrazole, J. Chem. Thermodynam., 1993, 25, 485-493. [all data]

Kozyro, Simirskii, et al., 1990, 2
Kozyro, A.A.; Simirskii, V.V.; Krasulin, A.P.; Sevruk, V.M.; Kabo, G.Y.; Frenkel, M.L.; Gaponik, P.N.; Grigor'ev, Y.V., Russ. J. Phys. Chem., 1990, 64, 348. [all data]

McEwan and Rigg, 1951
McEwan, W.S.; Rigg, M.W., The heats of combustion of compounds containing the tetrazole ring, J. Am. Chem. Soc., 1951, 73, 4725-4727. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]

Hilgeman, Mouroux, et al., 1989, 2
Hilgeman, F.R.; Mouroux, F.Y.N.; Mok, D.; Holan, M.K., Phase diagrams of binary solid azole systems, J. Chem. Eng. Data, 1989, 34, 220-222. [all data]

Kozyro, Simirskii, et al., 1990, 3
Kozyro, A.A.; Simirskii, V.V.; Krasulin, A.P.; Sevruk, V.M.; Kabo, G.Y.; Frenkel, M.L.; Gaponik, P.N.; Grigor'ev, Y.V., Thermodynamic properties of tetrazole derivatives in different aggregation states, Zh. Fiz. Khim., 1990, 64, 656. [all data]


Notes

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