1,3-Dithiane
- Formula: C4H8S2
- Molecular weight: 120.236
- IUPAC Standard InChIKey: WQADWIOXOXRPLN-UHFFFAOYSA-N
- CAS Registry Number: 505-23-7
- 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: m-Dithiane; 1,3-Dithiacyclohexane; Dithiane-1,3
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
27.22 | 300. | DeWit, Offringa, et al., 1983 | T = 300 to 450 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Gas Chromatography, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 327.2 | K | N/A | De Wit, Offringa, et al., 1983 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 15.0 ± 0.2 | kcal/mol | ME | Roux, Dávalos, et al., 1999 | Based on data from 266. to 279. K.; AC |
ΔsubH° | 16.7 ± 0.1 | kcal/mol | GC | Azandegbe, 1989 | AC |
ΔsubH° | 12.5 ± 0.2 | kcal/mol | C | Morawetz, 1971 | AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
17.4 | 263. | TE,ME | De Wit, Van Miltenburg, et al., 1983 | Based on data from 250. to 271. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.44 | 327.2 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.605 | 316.4 | Domalski and Hearing, 1996 | CAL |
10.52 | 327.2 |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.191 | 316.4 | crystaline, II | crystaline, I | DeWit, Offringa, et al., 1983 | DH |
3.4417 | 327.2 | crystaline, I | liquid | DeWit, Offringa, et al., 1983 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.60 | 316.4 | crystaline, II | crystaline, I | DeWit, Offringa, et al., 1983 | DH |
10.5 | 327.2 | crystaline, I | liquid | DeWit, Offringa, et al., 1983 | DH |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1027. | Madruga and Mottram, 1998 | 30. m/0.32 mm/1. μm, 60. C @ 5. min, 4. K/min, 250. C @ 20. min |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 1296. | Yu, Wu, et al., 1989 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 50. C; Tend: 200. C |
Capillary | CP-Wax 52CB | 1296. | Yu, Wu, et al., 1989, 2 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 50. C; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5 | 1031. | Shivashankar, Roy, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C (2 min) 3 0C/min -> 200 0C (3 min) 10 0C/min -> 220 0C (8 min) |
Capillary | VF-5 | 1027. | Shivashankar, Roy, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
DeWit, Offringa, et al., 1983
DeWit, H.G.M.; Offringa, J.C.A.; De Kruif, C.G.; Van Miltenburg, J.C.,
Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen and sulfur. III. Molar heat capacities measured by differential scanning calorimetry,
Thermochim. Acta, 1983, 65, 43-51. [all data]
De Wit, Offringa, et al., 1983
De Wit, H.G.M.; Offringa, J.C.A.; De Kruif, C.G.; van Miltenburg, J.C.,
Thremodynamic properties of molecular organic crystals containing nitrogen, oxygen and sulfur. III. molar heat capacities measured by DSC. scanning calorimetry.,
Thermochim. Acta, 1983, 65, 43. [all data]
Roux, Dávalos, et al., 1999
Roux, M.V.; Dávalos, J.Z.; Jiménez, P.; Flores, H.; Saiz, J.-L.; Abboud, J.-L.M.; Juaristi, E.,
Structural effects on the thermochemical properties of sulfur compounds: I. Enthalpy of combustion, vapour pressures, enthalpy of sublimation, and standard molar enthalpy of formation in the gaseous phase of 1,3-dithiane,
The Journal of Chemical Thermodynamics, 1999, 31, 5, 635-646, https://doi.org/10.1006/jcht.1998.0471
. [all data]
Azandegbe, 1989
Azandegbe, E.C.,
Determination of vaporization or sublimation enthalpies of some organic compounds by gas chromatography-calorimetry,
Analusis, 1989, 17, 5, 285. [all data]
Morawetz, 1971
Morawetz, E.,
Chem. Scr., 1971, 1, 103. [all data]
De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G.,
Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation,
The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Madruga and Mottram, 1998
Madruga, M.S.; Mottram, D.S.,
The effect of pH on the formation of volatile compounds produced by heating a model system containing 5'-imp and cysteine,
J. Braz. Chem. Soc., 1998, 9, 3, 261-271, https://doi.org/10.1590/S0103-50531998000300010
. [all data]
Yu, Wu, et al., 1989
Yu, T.-H.; Wu, C.-M.; Liou, Y.-C.,
Volatile compounds from garlic,
J. Agric. Food Chem., 1989, 37, 3, 725-730, https://doi.org/10.1021/jf00087a032
. [all data]
Yu, Wu, et al., 1989, 2
Yu, T.-H.; Wu, C.-M.; Chen, S.-Y.,
Effects of pH adjustment and heat treatment on the stability and the formation of volatile compounds of garlic,
J. Agric. Food Chem., 1989, 37, 3, 730-734, https://doi.org/10.1021/jf00087a033
. [all data]
Shivashankar, Roy, et al., 2012
Shivashankar, S.; Roy, T.K.; Moorthy, P.N.R.,
Headspace solid phase micro extraction and GC/MS analysis of the volatile components in seed and cake of Azadirachta indica A. juss,
Chem. Bull. of Politechnika Univ. Timisoara, Romania, 2012, 57(71), 1, 1-6. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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