Thiourea, N,N'-diethyl-

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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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus350.6KN/ATerenzi and Piacente, 1994Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Δsub29.1 ± 0.7kcal/molBDella Gatta, Józwiak, et al., 2000AC
Δsub28.73 ± 0.72kcal/molBTerenzi and Piacente, 1994, 2AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
24.1 ± 0.72368.ME,TETerenzi and Piacente, 1994, 2Based on data from 351. to 384. K.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
4.097350.5DSCDella Gatta, Józwiak, et al., 2000AC

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:


Gas phase ion energetics 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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference
7.98 ± 0.05EIBaldwin, Maccoll, et al., Ind. 1966

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.

Terenzi and Piacente, 1994
Terenzi, L.; Piacente, V., vapour pressures and vaporization enthalpies of thiourea and a homologous series of its 1,3-dialkyl derivatives, Thermochim. Acta, 1994, 235, 61-6. [all data]

Della Gatta, Józwiak, et al., 2000
Della Gatta, Giuseppe; Józwiak, Malgorzata; Brunetti, Bruno; Abate, Lorenzo, Enthalpies and entropies of fusion and of sublimation at the temperature 298.15 K of thiourea and sevenN-alkylthioureas, The Journal of Chemical Thermodynamics, 2000, 32, 8, 979-997, https://doi.org/10.1006/jcht.2000.0662 . [all data]

Terenzi and Piacente, 1994, 2
Terenzi, L.; Piacente, V., Vapour pressures and vaporization enthalpies of thiourea and a homologous series of its 1,3-dialkyl derivatives, Thermochimica Acta, 1994, 235, 1, 61-66, https://doi.org/10.1016/0040-6031(94)80083-9 . [all data]

Baldwin, Maccoll, et al., Ind. 1966
Baldwin, M.; Maccoll, A.; Kirkien-Konasiewicz, A.; Saville, B., Ionisation potentials of the N-methylated thioureas, Chem., Ind. 1966, 286. [all data]


Notes

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