S-Ethyl ethanethioate
- Formula: C4H8OS
- Molecular weight: 104.171
- IUPAC Standard InChIKey: APTGPWJUOYMUCE-UHFFFAOYSA-N
- CAS Registry Number: 625-60-5
- 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: Acetic acid, thio-, S-ethyl ester; Ethyl thiolacetate; S-Ethyl thioacetate; S-Ethyl thiolacetate; Ethanethioic acid, S-ethyl ester; CH3COSC2H5; Ethyl thioacetate
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Gas 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -227.8 ± 0.92 | kJ/mol | Eqk | Guthrie, 1978 |
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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -267.8 ± 0.88 | kJ/mol | Eqk | Guthrie, 1978 |
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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 389.6 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 386.9 | K | N/A | Dunbar and Bolstad, 1955 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 590.55 | K | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.2 K; by a static method; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 40.75 | bar | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.80 bar; by a static method; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.14 | mol/l | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.096 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 40.0 ± 0.2 | kJ/mol | E | Guthrie, 1978 | ALS |
ΔvapH° | 40.0 ± 0.2 | kJ/mol | C | Wadsö, Murto, et al., 1966 | AC |
ΔvapH° | 40.0 ± 0.2 | kJ/mol | C | Wadso, 1966 | ALS |
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
By formula: C4H8OS + H2O = C2H4O2 + C2H6S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -4.0 ± 0.3 | kJ/mol | Cm | Wadso, 1957 | liquid phase; Heat of hydrolysis |
Gas phase ion energetics 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:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C4H8OS+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.2 | PE | Nagata, Yamabe, et al., 1975 | LLK |
9.4 | PE | Jones, Modelli, et al., 1994 | Vertical value; LL |
9.44 | PE | Nagata, Yamabe, et al., 1975 | Vertical value; LLK |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-2868 |
NIST MS number | 245141 |
Gas Chromatography
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Apiezon M | 130. | 754. | Garbuzov, Misharina, et al., 1985 | He or N2, Chromosorb W, AW-DMCS; Column length: 2.1 m |
Packed | Apiezon M | 130. | 754. | Golovnya, Garbuzov, et al., 1981 | Chromosorb W, AW/DMCS; Column length: 2.1 m |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1092. | Bianchi, Careri, et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 35C(8min) => 4C/min => 60C => 6C/min => 160C => 20C/min => 200C(1min) |
Capillary | DB-FFAP | 1080. | Huynh-Ba, Matthey-Doret, et al., 2003 | 30. m/0.32 mm/0.25 μm; Program: 35C(2min) => 6C/min => 180C => 10C/min => 240C (10min) |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SE-54 | 756. | Weenen, Koolhaas, et al., 1996 | 50. m/0.32 mm/1.05 μm, He, 2. K/min; Tstart: 40. C; Tend: 300. C |
Capillary | SE-54 | 767. | Weenen, Koolhaas, et al., 1996 | 50. m/0.32 mm/1.05 μm, He, 2. K/min; Tstart: 40. C; Tend: 300. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP Sil 5 CB | 749. | Gijs, Piraprez, et al., 2000 | 50. m/0.32 mm/1.2 μm, He; Program: 33C (16.5min) => 2C/min => 160C => 20C/min => 200C (9min) |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1109. | Chin, Nazimah, et al., 2007 | 10. m/0.1 mm/0.1 μm, He, 40. C @ 1.5 min, 50. K/min, 240. C @ 2. min |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Guthrie, 1978
Guthrie, J.P.,
Hydration of thioesters. Evaluation of the free-energy changes for the addition of water to some thioesters, rate-equilibrium correlations over very wide ranges in equilibrium constants, and a new mechanistic criterion,
J. Am. Chem. Soc., 1978, 100, 5892-5904. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Dunbar and Bolstad, 1955
Dunbar, R.E.; Bolstad, A.N.,
The Acetylation of Mercaptans with Ketene,
J. Am. Chem. Soc., 1955, 77, 4672. [all data]
Wilson, Wilson, et al., 1996
Wilson, L.C.; Wilson, H.L.; Wilding, W.V.; Wilson, G.M.,
Critical Point Measurements for Fourteen Compounds by a Static Method and a Flow Method,
J. Chem. Eng. Data, 1996, 41, 1252-4. [all data]
Wadsö, Murto, et al., 1966
Wadsö, Ingemar; Murto, Maija-Leena; Bergson, Göran; Ehrenberg, L.; Brunvoll, J.; Bunnenberg, E.; Djerassi, Carl; Records, Ruth,
Heats of Vaporization for a Number of Organic Compounds at 25 degrees C.,
Acta Chem. Scand., 1966, 20, 544-552, https://doi.org/10.3891/acta.chem.scand.20-0544
. [all data]
Wadso, 1966
Wadso, I.,
Acta Chem. Scand., 1966, 20, 544. [all data]
Wadso, 1957
Wadso, I.,
The heats of hydrolysis of some alkyl thiolesters,
Acta Chem. Scand., 1957, 11, 1745-1751. [all data]
Nagata, Yamabe, et al., 1975
Nagata, S.; Yamabe, T.; Fukui, K.,
A study of the electronic spectra of thioacetic acid and its ethyl ester,
J. Phys. Chem., 1975, 79, 2335. [all data]
Jones, Modelli, et al., 1994
Jones, D.; Modelli, A.; Olivato, P.R.; DalColle, M.; dePalo, M.; Distefano, G.,
Ab initio and electron spectroscopy study of carbonyl derivatives,
J. Chem. Soc. Perkin Trans. 2, 1994, 1994, 1651. [all data]
Garbuzov, Misharina, et al., 1985
Garbuzov, V.G.; Misharina, T.A.; Aerov, A.F.; Golovnya, R.V.,
Gas chromatographic retention indices for sulphur(II)-containing organic substances,
J. Anal. Chem. USSR (Engl. Transl.), 1985, 40, 4, 576-586. [all data]
Golovnya, Garbuzov, et al., 1981
Golovnya, R.V.; Garbuzov, V.G.; Aérov, A.F.,
Comparison of the retention indices and differential molar free energies of solution for thiolic and carboxylic esters on gas-chromatographic columns with various polarities,
Izv. Akad. Nauk SSSR Ser. Khim., 1981, 10, 1877-1880. [all data]
Bianchi, Careri, et al., 2007
Bianchi, F.; Careri, M.; Mangia, A.; Musci, M.,
Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness,
J. Sep. Sci., 2007, 39, 4, 563-572, https://doi.org/10.1002/jssc.200600393
. [all data]
Huynh-Ba, Matthey-Doret, et al., 2003
Huynh-Ba, T.; Matthey-Doret, W.; Fay, L.B.; Rhlid, R.B.,
Generation of thiols by biotransformation of cysteine-aldehyde conjugates with Baker's yeast,
J. Agric. Food Chem., 2003, 51, 12, 3629-3635, https://doi.org/10.1021/jf026198j
. [all data]
Weenen, Koolhaas, et al., 1996
Weenen, H.; Koolhaas, W.E.; Apriyantono, A.,
Sulfur-containing volatiles of durian fruits (Durio zibethinus Murr.),
J. Agric. Food Chem., 1996, 44, 10, 3291-3293, https://doi.org/10.1021/jf960191i
. [all data]
Gijs, Piraprez, et al., 2000
Gijs, L.; Piraprez, G.; Perpète, P.; Spinnler, E.; Collin, S.,
Retention of sulfur flavours by food matrix and determination of sensorial data independent of the medium composition,
Food Chem., 2000, 69, 3, 319-330, https://doi.org/10.1016/S0956-7135(99)00111-5
. [all data]
Chin, Nazimah, et al., 2007
Chin, S.T.; Nazimah, S.A.H.; Quek, S.Y.; Che Man, Y.B.; Rahman, R.A.; Hashim, D.M.,
Analysis of volatile compounds from Malaysian durians (Durio zibethinus) using headspace SPME coupled to fast GC-MS,
J. Food Comp. Anal., 2007, 20, 1, 31-44, https://doi.org/10.1016/j.jfca.2006.04.011
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, NIST Subscription Links, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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