Ethane, 1,1-dimethoxy-
- Formula: C4H10O2
- Molecular weight: 90.1210
- IUPAC Standard InChI: InChI=1S/C4H10O2/c1-4(5-2)6-3/h4H,1-3H3
- IUPAC Standard InChIKey: SPEUIVXLLWOEMJ-UHFFFAOYSA-N
- CAS Registry Number: 534-15-6
- 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. - Species with the same structure:
- Other names: Acetaldehyde, dimethyl acetal; Dimethyl acetal; Ethylidene dimethyl ether; 1,1-Dimethoxyethane; CH3CH(OCH3)2; Dimethyl aldehyde; UN 2377; 3-Methyl-2,4-dioxapentane; Acetaldehyde methyl acetal
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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
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 337.7 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 334.45 | K | N/A | Timmermans, 1927 | Uncertainty assigned by TRC = 0.5 K; source of data not clear; TRC |
| Tboil | 336. | K | N/A | Schiff, 1884 | Uncertainty assigned by TRC = 2. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 36.4 ± 0.1 | kJ/mol | C | Kusano and Wadso, 1970 | AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 33.4 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. to 333. K. See also Nicolini and Laffitte, 1949 and Dykyj, 1971.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 273. to 333. | 3.91888 | 1087.364 | -59.707 | Nicolini and Laffitte, 1949, 2 | Coefficents calculated by NIST from author's data. |
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
+
= 2
+
By formula: C4H10O2 + H2O = 2CH4O + C2H4O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 36.07 ± 0.063 | kJ/mol | Cm | Wiberg, 1980 | liquid phase; solvent: Water; Hydrolysis |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Timmermans, 1927
Timmermans, J.,
The Melting Point of Organic Substances,
Bull. Soc. Chim. Belg., 1927, 36, 502. [all data]
Schiff, 1884
Schiff, R.,
The Capillary Constants of Liquids at Their Boiling Point,
Justus Liebigs Ann. Chem., 1884, 223, 47-106. [all data]
Kusano and Wadso, 1970
Kusano, K.; Wadso, I.,
Enthalpies of vaporization of organic compounds,
Acta Chem. Scand., 1970, 24, 2037-2042. [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]
Nicolini and Laffitte, 1949
Nicolini, E.; Laffitte, P.,
Compt. Rend., 1949, 229, 757. [all data]
Dykyj, 1971
Dykyj, J.,
Petrochemia, 1971, 11, 2, 27. [all data]
Nicolini and Laffitte, 1949, 2
Nicolini, E.; Laffitte, P.,
Tensions de Vapeur de Quelques Liquides Organiques Purs,
Compt. Rend., 1949, 229, 757-759. [all data]
Wiberg, 1980
Wiberg, K.B.,
Energies of organic compounds,
Rept. DOE-E(11-1)4060 Prepared for US Dept. of Energy by Yale Univ., New Haven, CT. Avail. NTIS, 1980, 1-24. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Tboil Boiling point ΔrH° Enthalpy of reaction 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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