Ethane, 1,1-dimethoxy-
- Formula: C4H10O2
- Molecular weight: 90.1210
- 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
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References, Notes
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° | 8.70 ± 0.02 | kcal/mol | C | Kusano and Wadso, 1970 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.98 | 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 (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
273. to 333. | 3.91317 | 1087.364 | -59.707 | Nicolini and Laffitte, 1949, 2 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Phase change data, Gas Chromatography, References, Notes
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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10. ± 10. | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H7O+ | 9.98 ± 0.05 | CH3O | EI | Holmes and Lossing, 1984 | LBLHLM |
C3H7O+ | 10.63 ± 0.04 | CH3O | EI | Martin, Lampe, et al., 1966 | RDSH |
C3H7O2+ | 9.74 | CH3 | EI | Holmes and Lossing, 1982 | LBLHLM |
C3H7O2+ | 10.34 ± 0.07 | CH3 | EI | Martin, Lampe, et al., 1966 | RDSH |
Gas Chromatography
Go To: Top, Phase change data, Gas phase ion energetics data, 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 | Squalane | 50. | 547. | Becerra, Sánchez, et al., 1982 | N2, Chromosorb W-AM; Column length: 6. m |
Packed | Apiezon L | 120. | 551. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Packed | Apiezon L | 160. | 554. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Capillary | Squalane | 115. | 563. | Lafosse and Thuaud-Chourrout, 1975 | Column length: 100. m; Column diameter: 0.25 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 588. | Zenkevich, 1995 | Program: not specified |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, 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]
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]
Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P.,
Heats of formation of organic radicals from appearance energies,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]
Martin, Lampe, et al., 1966
Martin, R.H.; Lampe, F.W.; Taft, R.W.,
An electron-impact study of ionization and dissociation in methoxy- and halogen- substituted methanes,
J. Am. Chem. Soc., 1966, 88, 1353. [all data]
Holmes and Lossing, 1982
Holmes, J.L.; Lossing, F.P.,
Towards a general scheme for estimating the heats of formation of organic ions in the gas phase. Part II. The effect of substitution at charge-bearing sites,
Can. J. Chem., 1982, 60, 2365. [all data]
Becerra, Sánchez, et al., 1982
Becerra, M.R.; Sánchez, E.F.; Domínguez, J.A.G.; Muñoz, J.G.; Molera, M.J.,
The use of gaseous and liquid n-paraffins in GC identification of oxidation products of acetondimethyl acetal,
J. Chromatogr. Sci., 1982, 20, 8, 363-366, https://doi.org/10.1093/chromsci/20.8.363
. [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]
Lafosse and Thuaud-Chourrout, 1975
Lafosse, M.; Thuaud-Chourrout, N.,
Etude du comportement de composés halogénés et mèthoxylés en CG dans le cas de quatre phases stationnaires liquides pouvant former des liaisons de type donneur-accepteur d'électrons avec les groupes fonctionnels de ces composés,
Chromatographia, 1975, 8, 4, 195-202, https://doi.org/10.1007/BF02274456
. [all data]
Zenkevich, 1995
Zenkevich, I.G.,
Calculation of Gas-Chromatographic Retention Indices from Physico-Chemical Constants of Organic Compounds,
Z. Anal. Chem., 1995, 50, 10, 1048-1056. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling 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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