Dimethyl sulfide
- Formula: C2H6S
- Molecular weight: 62.134
- IUPAC Standard InChIKey: QMMFVYPAHWMCMS-UHFFFAOYSA-N
- CAS Registry Number: 75-18-3
- 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. - Isotopologues:
- Other names: Methane, thiobis-; Methyl sulfide; Dimethyl monosulfide; Dimethyl thioether; DMS; Methyl monosulfide; 2-Thiapropane; Dimethyl sulphide; Thiobismethane; (CH3)2S; Dimethylsulfid; Exact-S; Methyl sulphide; Methylthiomethane; Sulfure de methyle; 2-Thiopropane; UN 1164; Methyl thioether; Sulfide, methyl-; Methane, 1,1'-thiobis-; (Methylsulfanyl)methane
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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 311. ± 3. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 174.88 | K | N/A | Haines, Helm, et al., 1956 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 174.90 | K | N/A | Mcallan, Cullum, et al., 1951 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 174.85 | K | N/A | Osborne, Doescher, et al., 1942 | Uncertainty assigned by TRC = 0.03 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 503. | K | N/A | Majer and Svoboda, 1985 | |
Tc | 503.0 | K | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.4 K; by disappearance of meniscus; TRC |
Tc | 503.0 | K | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.4 K; by apperanance of turbidity; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 54.58 | atm | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.4000 atm; vapor pressure at Tc; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.972 | mol/l | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
ρc | 4.84 | mol/l | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 6.65 ± 0.07 | kcal/mol | AVG | N/A | Average of 8 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.5 | 310.5 | N/A | Majer and Svoboda, 1985 | |
6.91 | 283. | A | Stephenson and Malanowski, 1987 | Based on data from 268. to 319. K.; AC |
6.62 | 322. | A | Stephenson and Malanowski, 1987 | Based on data from 307. to 379. K.; AC |
6.36 | 387. | A | Stephenson and Malanowski, 1987 | Based on data from 372. to 453. K.; AC |
6.38 | 462. | A | Stephenson and Malanowski, 1987 | Based on data from 447. to 503. K.; AC |
6.88 ± 0.02 | 276. | C | McCullough, Hubbard, et al., 1957 | AC |
6.67 ± 0.02 | 292. | C | McCullough, Hubbard, et al., 1957 | AC |
6.45 ± 0.02 | 310. | C | McCullough, Hubbard, et al., 1957 | AC |
6.74 | 302. | EB | White, Barnard--Smith, et al., 1952 | Based on data from 287. to 318. K.; AC |
6.91 | 278. | N/A | Osborne, Doescher, et al., 1942, 2 | Based on data from 251. to 293. K.; AC |
6.91 | 310. | N/A | Thompson and Linnett, 1935 | AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
276. to 311. | 9.928 | 0.2731 | 503. | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
250.60 to 293.24 | 4.28142 | 1201.134 | -29.906 | Osborne, Doescher, et al., 1942, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.91 | 174.9 | Domalski and Hearing, 1996 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Haines, Helm, et al., 1956
Haines, W.E.; Helm, R.V.; Cook, G.L.; Ball, J.S.,
Purification and Properties of Organic Sulfur Compounds,
J. Phys. Chem., 1956, 60, 549-55. [all data]
Mcallan, Cullum, et al., 1951
Mcallan, D.T.; Cullum, T.V.; Dean, R.A.; Fidler, F.A.,
The Preparation and Properties of Sulfur Compounds Related to Petroleum I. The Dialkyl Sulfides and Disulfides,
J. Am. Chem. Soc., 1951, 73, 3627-32. [all data]
Osborne, Doescher, et al., 1942
Osborne, D.W.; Doescher, R.N.; Yost, D.M.,
The heat capacity, heats of fusion and vaporization, vapor pressure and entropy of dimethyl sulfide.,
J. Am. Chem. Soc., 1942, 64, 169-72. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Berthoud and Brum, 1924
Berthoud, A.; Brum, R.,
Physical Properties of Some Organic Compounds.,
J. Chim. Phys. Phys.-Chim. Biol., 1924, 21, 143-60. [all data]
Herz and Neukirch, 1923
Herz, W.; Neukirch, E.,
On Knowldge of the Critical State,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1923, 104, 433-50. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
McCullough, Hubbard, et al., 1957
McCullough, J.P.; Hubbard, W.N.; Frow, F.R.; Hossenlopp, I.A.; Waddington, G.,
Ethanethiol and 2-thiapropane: Heats of formation and isomerization; the chemical thermodynamic properties from 0 to 1000°K,
J. Am. Chem. Soc., 1957, 79, 561-566. [all data]
White, Barnard--Smith, et al., 1952
White, P.T.; Barnard--Smith, D.G.; Fidler, F.A.,
Vapor Pressure--Temperature Relationships of Sulfur Compounds Related to Petroleum,
Ind. Eng. Chem., 1952, 44, 6, 1430-1438, https://doi.org/10.1021/ie50510a064
. [all data]
Osborne, Doescher, et al., 1942, 2
Osborne, D.W.; Doescher, R.N.; Yost, D.M.,
The heat capacity, heats of fusion and vaporization, vapor pressure and entropy of dimethyl sulfide,
J. Am. Chem. Soc., 1942, 64, 169-172. [all data]
Thompson and Linnett, 1935
Thompson, H.W.; Linnett, J.W.,
The vapour pressures of some alkyl sulphides,
Trans. Faraday Soc., 1935, 31, 1743, https://doi.org/10.1039/tf9353101743
. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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