Thiourea

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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
Δfgas22.9 ± 1.6kJ/molCcrGomez and Sabbah, 1982 

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
Δfsolid-89.1 ± 0.5kJ/molCcrGomez and Sabbah, 1982ALS
Δfsolid-90.0kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δcsolid-1478.03 ± 0.45kJ/molCcrGomez and Sabbah, 1982ALS
Δcsolid-1474.4 ± 2.1kJ/molCcrSunner, 1946Reanalyzed by Cox and Pilcher, 1970, Original value = -1483.7 kJ/mol; ALS
Δcsolid-1488. ± 0.8kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Quantity Value Units Method Reference Comment
solid,1 bar115.8J/mol*KN/AWestrum and Chang, 1967DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
96.90298.15Torres Gomez and Sabbah, 1982Cp data given as 1.273 J/g*K. Data from 67WES/CHA.; DH
96.90298.15Westrum and Chang, 1967Temperature range.; DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes

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

Gomez and Sabbah, 1982
Gomez, L.A.T.; Sabbah, R., Thermodynamique de substances soufrees. IV. Etude thermochimique de la thiouree, de la thiosemicarbazide et de la thiocarbohydrazide, Thermochim. Acta, 1982, 57, 67-81. [all data]

Becker and Roth, 1934
Becker, G.; Roth, W.A., Zur bestimmung der verbrennungswarme von organischen schwefelverbindunge, Z. Phys. Chem., 1934, 169, 287-296. [all data]

Sunner, 1946
Sunner, S., Determination of combustion heats of organo-sulphur compounds, Svensk. Kim. Tidr., 1946, 58, 71-81. [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]

Westrum and Chang, 1967
Westrum, E.F., Jr.; Chang, E., Properties thermiques cryogenetiques de la thio-uree ferroelectrique, Colloq. Internat. du, 1967, C.N.R.S. (156), 163-173. [all data]

Torres Gomez and Sabbah, 1982
Torres Gomez, L.A.F.; Sabbah, R., Thermodynamic de substances soufrees. IV. Etude thermochimique de las thiouree, de la thiosemicarbazide et de la thiocarbohydrazide, Thermochim. Acta, 1982, 57, 67-81. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References