Propane, 2-methyl-2-(methylthio)-
- Formula: C5H12S
- Molecular weight: 104.214
- IUPAC Standard InChIKey: CJFVCTVYZFTORU-UHFFFAOYSA-N
- CAS Registry Number: 6163-64-0
- 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: Sulfide, tert-butyl methyl; tert-Butyl methyl sulfide; Methyl tert-butyl sulfide; 3,3-Dimethyl-2-thiabutane; 2-Methyl-2-(methylthio)-propane; tert-Butyl methyl sulphide; (CH3)3CSCH3; Methyl t-butyl sulfide; NSC 97331
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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.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 373. ± 3. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 190.85 | K | N/A | Lanum and Morris, 1969 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 190.9 | K | N/A | Anonymous, 1952 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 190.84 | K | N/A | Scott, Good, et al., 1962 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 184.86 | K | N/A | Scott, Good, et al., 1962 | Metastable crystal phase; Uncertainty assigned by TRC = 0.06 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 569.8 | K | N/A | Majer and Svoboda, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 35.9 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 34.2 | kJ/mol | N/A | Sawaya, Mokbel, et al., 2004 | Based on data from 245. to 352. K.; AC |
ΔvapH° | 35.9 | kJ/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 35.8 | kJ/mol | V | Scott, Good, et al., 1962, 2 | ALS |
ΔvapH° | 35.9 | kJ/mol | N/A | Scott, Good, et al., 1962, 2 | DRB |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
31.47 | 372.1 | N/A | Majer and Svoboda, 1985 | |
36.5 | 291. | N/A | Dykyj, Svoboda, et al., 1999 | Based on data from 276. to 397. K.; AC |
35.1 | 320. | A,EB | Stephenson and Malanowski, 1987 | Based on data from 305. to 411. K. See also Scott, Good, et al., 1962, 3 and Osborn and Douslin, 1966.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
330. to 372. | 51.75 | 0.2906 | 569.8 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
306.86 to 410.24 | 3.97204 | 1259.672 | -54.455 | Scott, Good, et al., 1962, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.414 | 190.84 | Scott, Good, et al., 1962, 2 | DH |
8.41 | 190.8 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
44.09 | 190.84 | Scott, Good, et al., 1962, 2 | DH |
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.
Lanum and Morris, 1969
Lanum, W.J.; Morris, J.C.,
Physical Properties of Some Sulfur and Nitrogen Compounds,
J. Chem. Eng. Data, 1969, 14, 93-8. [all data]
Anonymous, 1952
Anonymous, R.,
, Physical Properties of Chemical Substances, Dow Chemical Co., 1952. [all data]
Scott, Good, et al., 1962
Scott, D.W.; Good, W.D.; Todd, S.S.; Messerly, J.F.; Berg, W.T.; Hossenlopp, I.A.; Lacina, J.L.; Osborn, A.G.; McCullough, J.P.,
3,3-Dimethyl-2-Thiabutane: Chemical Thermodynamic Properties and Barriers to Internal Rotation,
J. Chem. Phys., 1962, 36, 406-12. [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]
Sawaya, Mokbel, et al., 2004
Sawaya, Terufat; Mokbel, Ilham; Rauzy, Evelyne; Saab, Joseph; Berro, Charles; Jose, Jacques,
Experimental vapor pressures of alkyl and aryl sulfides,
Fluid Phase Equilibria, 2004, 226, 283-288, https://doi.org/10.1016/j.fluid.2004.10.007
. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Scott, Good, et al., 1962, 2
Scott, D.W.; Good, W.D.; Todd, S.S.; Messerly, J.F.; Berg, W.T.; Hossenlopp, I.A.; Lacina, J.L.; Osborn, A.; McCullough, J.P.,
3,3-Dimethyl-2-thiabutane: Chemical thermodynamic properties and barriers to internal rotation,
J. Chem. Phys., 1962, 36, 406-412. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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]
Scott, Good, et al., 1962, 3
Scott, D.W.; Good, W.D.; Todd, S.S.; Messerly, J.F.; Berg, W.T.; Hossenlopp, I.A.; Lacina, J.L.; Osborn, Ann; McCullough, J.P.,
3,3-Dimethyl-2-Thiabutane: Chemical Thermodynamic Properties and Barriers to Internal Rotation,
J. Chem. Phys., 1962, 36, 2, 406, https://doi.org/10.1063/1.1732519
. [all data]
Osborn and Douslin, 1966
Osborn, A.G.; Douslin, D.R.,
Vapor Pressure Relations of 36 Sulfur Compounds Present in Petroleum.,
J. Chem. Eng. Data, 1966, 11, 4, 502-509, https://doi.org/10.1021/je60031a014
. [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:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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