Propane, 2-(methylthio)-
- Formula: C4H10S
- Molecular weight: 90.187
- IUPAC Standard InChIKey: ROSSIHMZZJOVOU-UHFFFAOYSA-N
- CAS Registry Number: 1551-21-9
- 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, isopropyl methyl; Isopropyl methyl sulfide; Methyl isopropyl sulfide; 3-Methyl-2-thiabutane; 2-(Methylthio)propane; Isopropyl methyl sulphide
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -21.43 ± 0.18 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 |
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 | -29.81 ± 0.18 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -29.61 ± 0.18 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -831.93 ± 0.14 | kcal/mol | Ccr | Hubbard, Good, et al., 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -831.77 ± 0.14 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 62.880 | cal/mol*K | N/A | McCullough, Finke, et al., 1955 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
41.200 | 298.15 | McCullough, Finke, et al., 1955 | T = 12 to 344 K.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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 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
DRB - Donald R. Burgess, Jr.
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 |
---|---|---|---|---|---|
Tboil | 359. ± 7. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 171.64 | K | N/A | Haines, Helm, et al., 1956 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 171.67 | K | N/A | Mcallan, Cullum, et al., 1951 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 171.65 | K | N/A | McCullough, Finke, et al., 1955, 2 | Uncertainty assigned by TRC = 0.06 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 549.5 | K | N/A | Majer and Svoboda, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 8.184 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 8.15 | kcal/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 8.37 | kcal/mol | N/A | Hubbard, Good, et al., 1958 | DRB |
ΔvapH° | 8.175 | kcal/mol | V | McCullough, Finke, et al., 1955, 3 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.340 | 357.9 | N/A | Majer and Svoboda, 1985 | |
8.08 | 313. | A,EB | Stephenson and Malanowski, 1987 | Based on data from 298. to 368. K. See also White, Barnard--Smith, et al., 1952.; AC |
7.89 ± 0.02 | 318. | C | McCullough, Finke, et al., 1955 | AC |
7.65 ± 0.02 | 336. | C | McCullough, Finke, et al., 1955 | AC |
7.34 ± 0.02 | 358. | C | McCullough, Finke, et al., 1955 | 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 |
---|---|---|---|---|---|
318. to 358. | 11.81 | 0.2789 | 549.5 | Majer and Svoboda, 1985 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.236 | 171.65 | McCullough, Finke, et al., 1955 | DH |
2.24 | 171.7 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.03 | 171.65 | McCullough, Finke, et al., 1955 | DH |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, 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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
8.7 ± 0.2 | EI | Hobrock and Kiser, 1963 |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHS+ | 16.4 ± 0.4 | ? | EI | Hobrock and Kiser, 1963 | |
CH2S+ | 15.5 ± 0.4 | ? | EI | Hobrock and Kiser, 1963 | |
CH3+ | 19.4 ± 0.5 | ? | EI | Hobrock and Kiser, 1963 | |
CH3S+ | 15.3 ± 0.2 | ? | EI | Hobrock and Kiser, 1963 | |
CH4S+ | 12.0 ± 0.2 | ? | EI | Hobrock and Kiser, 1963 | |
CH5S+ | 12.1 ± 0.2 | ? | EI | Hobrock and Kiser, 1963 | |
C2H3+ | 16.5 ± 0.5 | ? | EI | Hobrock and Kiser, 1963 | |
C2H3S+ | 16.1 ± 0.3 | ? | EI | Hobrock and Kiser, 1963 | |
C2H5S+ | 13.5 ± 0.3 | ? | EI | Hobrock and Kiser, 1963 | |
C3H3+ | 21.0 ± 0.5 | ? | EI | Hobrock and Kiser, 1963 | |
C3H5+ | 15.2 ± 0.2 | ? | EI | Hobrock and Kiser, 1963 | |
C3H6+ | 13.5 | ? | EI | Hobrock and Kiser, 1963 | |
C3H7+ | 12.7 ± 0.2 | ? | EI | Hobrock and Kiser, 1963 | |
C3H7S+ | 11.7 ± 0.2 | CH3 | EI | Hobrock and Kiser, 1963 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hubbard, Good, et al., 1958
Hubbard, W.N.; Good, W.D.; Waddington, G.,
The heats of combustion, formation and isomerization of the seven isomeric C4H10S alkane thiols and sulfides,
J. Phys. Chem., 1958, 62, 614-617. [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]
McCullough, Finke, et al., 1955
McCullough, J.P.; Finke, H.L.; Messerly, J.F.; Pennington, R.E.; Hossenlopp, I.A.; Waddington, G.,
3-Methyl-2-thiabutane: calorimetric studies from 12 to 500 K., the chemical thermodynamic properties from 0 to 1000 K,
J. Am. Chem. Soc., 1955, 77, 6119-6125. [all data]
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]
McCullough, Finke, et al., 1955, 2
McCullough, J.P.; Finke, H.L.; Messerly, J.F.; Pennington, R.E.; Hossenlopp, I.A.; Waddington, G.,
3-Methyl-2-thiabutane: Calorimetric Studies from 12 to 500 K; the Chemical Thermodynamic Properties from 0 to 1000 K,
J. Am. Chem. Soc., 1955, 77, 6119-25. [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]
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]
McCullough, Finke, et al., 1955, 3
McCullough, J.P.; Finke, H.L.; Messerly, J.F.; Pennington, R.E.; Hossenlopp, I.A.; Waddington, G.,
3-Methyl-2-thiabutane: Calorimetric studies from 12 to 500°K.; the chemical thermodynamic properties from 0 to 1000°K,
J. Am. Chem. Soc., 1955, 77, 6119-61. [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]
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]
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]
Hobrock and Kiser, 1963
Hobrock, B.G.; Kiser, R.W.,
Electron impact investigations of sulfur compounds. II. 3-Methyl-2-thiabutane, 4-thia-1-pentene, and 3,4-dithiahexane,
J. Phys. Chem., 1963, 67, 648. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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