Methane, diethoxy-
- Formula: C5H12O2
- Molecular weight: 104.1476
- 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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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -98.73 | kcal/mol | N/A | Gutner, Lebedeva, et al., 1980 | Value computed using ΔfHliquid° value of -448.7±0.4 kj/mol from Gutner, Lebedeva, et al., 1980 and ΔvapH° value of 35.7 kj/mol from Mansson, 1969.; DRB |
ΔfH°gas | -99.13 ± 0.21 | kcal/mol | Ccr | Mansson, 1969 | ALS |
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 | -107.2 ± 0.1 | kcal/mol | Ccb | Gutner, Lebedeva, et al., 1980 | |
ΔfH°liquid | -107.65 ± 0.20 | kcal/mol | Ccr | Mansson, 1969 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -772.90 ± 0.1 | kcal/mol | Ccb | Gutner, Lebedeva, et al., 1980 | Corresponding ΔfHºliquid = -107.2 kcal/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -772.50 ± 0.19 | kcal/mol | Ccr | Mansson, 1969 | Corresponding ΔfHºliquid = -107.65 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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° | 8.542 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 8.9 ± 0.5 | kcal/mol | V | Lebedeva, Ryadnenko, et al., 1977 | Heat of combustion is not reported; ALS |
ΔvapH° | 8.521 ± 0.041 | kcal/mol | C | Mansson, 1969 | ALS |
ΔvapH° | 8.53 | kcal/mol | N/A | Mansson, 1969 | DRB |
ΔvapH° | 8.53 ± 0.05 | kcal/mol | C | Mansson, 1969 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.488 | 361.1 | N/A | Majer and Svoboda, 1985 | |
8.63 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. to 361. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
273. to 348. | 4.10492 | 1270.167 | -51.891 | Nicolini and Laffitte, 1949 | 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: Robert C. Dunbar
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: Na+ + C5H12O2 = (Na+ • C5H12O2)
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
27.6 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89 |
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 by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
9.70 ± 0.05 | PI | Watanabe, Nakayama, et al., 1962 |
Ion clustering 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: Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: Na+ + C5H12O2 = (Na+ • C5H12O2)
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
27.6 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89 |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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: 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 L | 120. | 635. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Packed | Apiezon L | 160. | 636. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | SE-30 | 120. | 647. | Gröbler and Bálizs, 1981 |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 657.74 | Baraldi, Rapparini, et al., 1999 | 60. m/0.25 mm/0.25 μm, 40. C @ 10. min, 5. K/min; Tend: 220. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 649. | Zhao, Li, et al., 2008 | 30. m/0.25 mm/0.25 μm; Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Gutner, Lebedeva, et al., 1980
Gutner, N.M.; Lebedeva, N.D.; Dobychin, S.L.; Kiseleva, N.N.,
Thermochemical study of aliphatic ethers,
J. Appl. Chem. USSR, 1980, 53, 1523-1525. [all data]
Mansson, 1969
Mansson, M.,
Non-bonded oxygen-oxygen interactions in straight-chain compounds,
J. Chem. Thermodyn., 1969, 1, 141-151. [all data]
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]
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]
McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G.,
An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions,
Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7
. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S.,
Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]
Gröbler and Bálizs, 1981
Gröbler, A.; Bálizs, G.,
Investigations on mixed gas chromatographic stationary phases. Part 3: A generalized approximation of retention indices for polar-nonpoalar stationary phase mixtures,
J. Chromatogr. Sci., 1981, 19, 1, 46-51, https://doi.org/10.1093/chromsci/19.1.46
. [all data]
Baraldi, Rapparini, et al., 1999
Baraldi, R.; Rapparini, F.; Rossi, F.; Latella, A.; Ciccioli, P.,
Volatile organic compound emissions from flowers of the most occurring and economically important species of fruit trees,
Phys. Chem. Earth, 1999, 24, 6, 729-732, https://doi.org/10.1016/S1464-1909(99)00073-8
. [all data]
Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G.,
EXtraction, preparation and identification of volatile compounds in Changyu XO brandy,
Chinese J. Chromatogr., 2008, 26, 2, 212-222, https://doi.org/10.1016/S1872-2059(08)60014-0
. [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, Ion clustering data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
T Temperature Tboil Boiling point Tfus Fusion (melting) point 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 ΔrG° Free energy 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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