trithiocarbonic acid
- Formula: CH2S3
- Molecular weight: 110.222
- IUPAC Standard InChI: InChI=1S/CH2S3/c2-1(3)4/h(H2,2,3,4)
- IUPAC Standard InChIKey: HIZCIEIDIFGZSS-UHFFFAOYSA-N
- CAS Registry Number: 594-08-1
- 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: Carbonotrithioic-acid-
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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 |
|---|---|---|---|---|---|
| ΔfH°liquid | 24.0 ± 1.5 | kJ/mol | Cm | Gattow and Krebes, 1963 | Reanalyzed by Cox and Pilcher, 1970, Original value = 26. ± 5.0 kJ/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 218. | J/mol*K | N/A | Gattow and Krebs, 1963 | Extrapolation below -95°C. Estimated uncertainty ± 25 J/mol*K.; DH |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 146.5 | 273. | Gattow and Krebs, 1963 | T = -95 to 20°C.; DH |
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 246.3 | K | N/A | Gattow and Krebes, 1963 | Uncertainty assigned by TRC = 0.5 K; TRC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 8.410 | 246.3 | Gattow and Krebs, 1963 | DH |
Entropy of fusion
| ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 34.1 | 246.3 | Gattow and Krebs, 1963 | DH |
Reaction 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
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| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 44. ± 1. | kJ/mol | Cm | Gattow and Krebes, 1963 | liquid phase |
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.
Gattow and Krebes, 1963
Gattow, V.G.; Krebes, B.,
Das kohlenstoffsulfid-di-(hydrogensulfid) SC(SH)2 und das system H2S-CS2. 2. Thermochemie des SC(SH)2,
Z. Anorg. Allg. Chem., 1963, 322, 113. [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]
Gattow and Krebs, 1963
Gattow, G.; Krebs, B.,
Das Kohlenstoffsulfid-di-(hydrogensulfid)SC(SH)2 und das System H2S-CS2. part 2. Thermochemie des SC(SH)2,
Z. anorg. allgem. Chem., 1963, 322, 113-128. [all data]
Notes
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- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tfus Fusion (melting) point ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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