Methane, diethoxy-
- Formula: C5H12O2
- Molecular weight: 104.1476
- IUPAC Standard InChI: InChI=1S/C5H12O2/c1-3-6-5-7-4-2/h3-5H2,1-2H3
- IUPAC Standard InChIKey: KLKFAASOGCDTDT-UHFFFAOYSA-N
- CAS Registry Number: 462-95-3
- 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: Ethane, 1,1'-[methylenebis(oxy)]bis-; Diethoxymethane; Diethylformal; Ethoxymethyl ethyl ether; Ethylal; Formaldehyde diethyl acetal; 1,1-Diethoxymethane; UN 2373; 3,5-Dioxaheptane; NSC 6754
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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 361.2 ± 0.9 | K | AVG | N/A | Average of 7 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 206. | K | N/A | Timmermans, 1935 | Uncertainty assigned by TRC = 2. K; TRC |
| Tfus | 206.65 | K | N/A | Timmermans, 1934 | Uncertainty assigned by TRC = 0.5 K; TRC |
| Tfus | 207.2 | K | N/A | Timmermans, 1927 | Uncertainty assigned by TRC = 1.5 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 35.74 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
| ΔvapH° | 37. ± 2. | kJ/mol | V | Lebedeva, Ryadnenko, et al., 1977 | Heat of combustion is not reported; ALS |
| ΔvapH° | 35.65 ± 0.17 | kJ/mol | C | Mansson, 1969 | ALS |
| ΔvapH° | 35.7 | kJ/mol | N/A | Mansson, 1969 | DRB |
| ΔvapH° | 35.7 ± 0.2 | kJ/mol | C | Mansson, 1969 | AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 31.33 | 361.1 | N/A | Majer and Svoboda, 1985 | |
| 36.1 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. - 361. K.; 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. - 348. | 4.11063 | 1270.167 | -51.891 | Nicolini and Laffitte, 1949 | Coefficents calculated by NIST from author's data. |
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.
Timmermans, 1935
Timmermans, J.,
Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds.,
Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]
Timmermans, 1934
Timmermans, J.,
Theory of Concentrated Solutions XII.,
Bull. Soc. Chim. Belg., 1934, 43, 626. [all data]
Timmermans, 1927
Timmermans, J.,
The Melting Point of Organic Substances,
Bull. Soc. Chim. Belg., 1927, 36, 502. [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]
Lebedeva, Ryadnenko, et al., 1977
Lebedeva, N.D.; Ryadnenko, V.L.; Gutner, N.M.; Nazarova, L.F.; Kiseleva, N.N.; Aizenshtadt, I.N.; Kirilenko, I.V.,
Possibility of using additive schemes for estimation of the enthalpies of formation of polyfunctional compounds,
J. Anal. Chem. USSR (Engl. Transl.), 1977, 50, 726-729. [all data]
Mansson, 1969
Mansson, M.,
Non-bonded oxygen-oxygen interactions in straight-chain compounds,
J. Chem. Thermodyn., 1969, 1, 141-151. [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.,
Tensions de Vapeur de Quelques Liquides Organiques Purs,
Compt. Rend., 1949, 229, 757-759. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point 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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