Sulfuric acid, dimethyl ester
- Formula: C2H6O4S
- Molecular weight: 126.132
- IUPAC Standard InChIKey: VAYGXNSJCAHWJZ-UHFFFAOYSA-N
- CAS Registry Number: 77-78-1
- 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: Dimethyl sulfate; DMS; Methyl Sulfate; Sulphuric acid dimethyl ester; Dimethyl sulphate; Dimethyl monosulfate; Dimethylester kyseliny sirove; Dimethylsulfaat; Dimethylsulfat; Dimetilsolfato; Dwumetylowy siarczan; DMS (Methyl sulfate); Methyl sulfate, Me2SO4; Methyle (sulfate de); Sulfate de dimethyle; Sulfate dimethylique; Rcra waste number U103; UN 1595; Dimethoxysulfone; NSC 56194
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, 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 | -164.20 ± 0.46 | kcal/mol | Ccb | Mackle and Steele, 1969 | Reanalyzed by Cox and Pilcher, 1970, Original value = -164.1 ± 0.5 kcal/mol |
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 | -175.73 ± 0.22 | kcal/mol | Ccb | Mackle and Steele, 1969 |
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:
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 | 470. | K | N/A | Mackle and Steele, 1969, 2 | Uncertainty assigned by TRC = 6. K; TRC |
Tboil | 461.7 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tboil | 461.95 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 241.15 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 241.4 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 11.6 ± 0.4 | kcal/mol | E | Mackle and Steele, 1969 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.2 | 355. | A | Stephenson and Malanowski, 1987 | Based on data from 340. to 470. K. See also Dykyj, Svoboda, et al., 1999.; AC |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mackle and Steele, 1969
Mackle, H.; Steele, W.V.,
Studies in the thermochemistry of organic sulphites and sulphates. Part 1.-Heats of combustion and formation of some dialkyl sulphites and sulphates,
Trans. Faraday Soc., 1969, 65, 2053-2059. [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]
Mackle and Steele, 1969, 2
Mackle, H.; Steele, W.V.,
Studies in the thermochemistry of organic sulphites and sulphates: I heats of combustion and formation of some dialkyl sulphites and sulphates,
Trans. Faraday Soc., 1969, 65, 2053-9. [all data]
Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F.,
Freezing points of orgainic substances VI. New experimental determinations.,
Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [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]
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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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