Hydrazinecarbothioamide
- Formula: CH5N3S
- Molecular weight: 91.135
- IUPAC Standard InChI: InChI=1S/CH5N3S/c2-1(5)4-3/h3H2,(H3,2,4,5)
- IUPAC Standard InChIKey: BRWIZMBXBAOCCF-UHFFFAOYSA-N
- CAS Registry Number: 79-19-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Semicarbazide, thio-; Isothiosemicarbazide; N-Aminothiourea; Thiocarbamoylhydrazine; Thiosemicarbazide; TSC; TSZ; 1-Amino-2-Thiourea; 1-Aminothiourea; 2-Thiosemicarbazide; Semicarbazide, 3-thio-; USAF EK-1275; Rcra waste number P116; Thiocarbamylhydrazine; NSC 2213
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Condensed phase thermochemistry data
Go To: Top, References, Notes
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 |
|---|---|---|---|---|---|
| ΔfH°solid | -5.700 | kcal/mol | Ccb | Nurakhmeta, Beremzhanov, et al., 1984 | ALS |
| ΔfH°solid | 0.56 ± 0.14 | kcal/mol | Ccr | Gomez and Sabbah, 1982 | ALS |
| ΔfH°solid | 5.9 ± 1.2 | kcal/mol | Ccb | Sunner, 1957 | Reanalyzed by Cox and Pilcher, 1970, Original value = 5.7 ± 0.5 kcal/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -409.28 ± 0.13 | kcal/mol | Ccr | Gomez and Sabbah, 1982 | ALS |
| ΔcH°solid | -414.7 ± 1.2 | kcal/mol | Ccb | Sunner, 1957 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 30.64 | cal/mol*K | N/A | Nurachmetov, Beremzhanov, et al., 1985 | crystaline, I phase; DH |
| S°solid,1 bar | 30.64 | cal/mol*K | N/A | Nurakhmetov, Beremzhanov, et al., 1984 | DH |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 27.32 | 298.15 | Nurachmetov, Beremzhanov, et al., 1985 | crystaline, I phase; T = 8 to 330 K.; DH |
| 27.32 | 298.15 | Nurakhmetov, Beremzhanov, et al., 1984 | T = 8 to 330 K.; DH |
| 26.51 | 298.15 | Torres Gomez and Sabbah, 1982 | Cp data given as 1.217 J/g*K.; DH |
References
Go To: Top, 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.
Nurakhmeta, Beremzhanov, et al., 1984
Nurakhmeta, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V.,
Thermodynamic properties of acetamide, thio-semicarbazide, and thiourea hydronitrate at (0-330) K,
Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, 1984, 2, 460-462. [all data]
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]
Sunner, 1957
Sunner, S.,
Reactions between hydrazine, thiocyanic acid and oxo-compounds. IV. Heats of combustion and derived data for some compounds related to thiosemicarbazide,
Acta Chem. Scand., 1957, 11, 1766-1770. [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]
Nurachmetov, Beremzhanov, et al., 1985
Nurachmetov, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V.,
Thermodynamics of (thio)amides and their compounds with mineral acids at (0-330)K,
Thermochim. Acta, 1985, 92, 329-332. [all data]
Nurakhmetov, Beremzhanov, et al., 1984
Nurakhmetov, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V.,
Thermodynamic properties of acetamide, thiosemicarbazide, and thiourea hydronitrate at (0-330) K, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf.,
10th, 1984, 2, 460-2. [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, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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