2,4,6-Trimethylbenzonitrile, N-oxide

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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:
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
Δsub87.8 ± 1.8kJ/molVAcree, Simirsky, et al., 1992ALS
Δsub77.5 ± 3.7kJ/molVAcree, Tucker, et al., 1991ALS

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.080224.3crystaline, IIcrystaline, IAcree, Sevruk, et al., 1993DH
87.800298.15crystaline, I Acree, Sevruk, et al., 1993p = 0.109 Pa.; DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.35224.3crystaline, IIcrystaline, IAcree, Sevruk, et al., 1993DH
265.08298.15crystaline, I Acree, Sevruk, et al., 1993p; DH

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.

Acree, Simirsky, et al., 1992
Acree, W.E., Jr.; Simirsky, V.V.; Kozyro, A.A.; Krasulin, A.P.; Kabo, G.J.; Frenkel, M.L., Thermodynamic properties of organic compounds. 2. Combustion and sublimation enthalpies of 2,4,6-trimethylbenzonitrile N-oxide, J. Chem. Eng. Data, 1992, 37, 131-133. [all data]

Acree, Tucker, et al., 1991
Acree, W.E., Jr.; Tucker, S.A.; Zvaigzne, A.I.; Meng-Yan, Y.; Pilcher, G.; Ribeiro Da Silva, M.D.M., Enthalpies of combustion of 2,4,6-trimethylbenzonitrile, 2,4,6-trimethylbenzonitrile N-oxide,, 2,6-dimethylbenzonitrile, 2,4,6-trimethoxybenzonitrile, and 2,4,6-trimethoxybenzonitrile N-oxide: the dissociation enthalpies of the (N-O) bonds, J. Chem. Thermodyn., 1991, 23, 31-36. [all data]

Acree, Sevruk, et al., 1993
Acree, W.E., Jr.; Sevruk, V.M.; Kozyro, A.A.; Krasulin, A.P.; Kabo, G.J.; Frenkel, M.L., Thermodynamic properties of organic compounds. 3. Sublimation enthalpy and heat capacities of 2,4,6-trimethylbenzonitrile N-oxide, J. Chem. Eng. Data, 1993, 38(1), 101-104. [all data]


Notes

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