Propane-1,3-diol, 2-methyl-
- Formula: C4H10O2
- Molecular weight: 90.1210
- IUPAC Standard InChIKey: QWGRWMMWNDWRQN-UHFFFAOYSA-N
- CAS Registry Number: 2163-42-0
- 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: 2-Methyl-1,3-propanediol; MP diol glycol; 1,3-Propanediol, 2-methyl-; propanediol 2-methyl
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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: William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 73.6 ± 0.2 | kJ/mol | GS | Verevkin, 2007 | Based on data from 297. to 375. K. |
ΔvapH° | 71.3 ± 0.5 | kJ/mol | N/A | Wilson, VonNiederhausern, et al., 2002 | Based on data from 488. to 708. K. See also Verevkin, 2007. |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H7O+ | 10.98 | CH3O | EI | Holmes, Lossing, et al., 1991 | LL |
C3H8O+ | 10.86 ± 0.05 | CH2O | EI | Holmes, Mommers, et al., 1984 | LBLHLM |
Mass spectrum (electron ionization)
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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-5088 |
NIST MS number | 237417 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Verevkin, 2007
Verevkin, Sergey P.,
Vapor Pressures and Enthalpies of Vaporization of a Series of the 1,3-Alkanediols,
J. Chem. Eng. Data, 2007, 52, 1, 301-308, https://doi.org/10.1021/je060419q
. [all data]
Wilson, VonNiederhausern, et al., 2002
Wilson, Grant M.; VonNiederhausern, David M.; Giles, Neil F.,
Critical Point and Vapor Pressure Measurements for Nine Compounds by a Low Residence Time Flow Method,
J. Chem. Eng. Data, 2002, 47, 4, 761-764, https://doi.org/10.1021/je0100995
. [all data]
Holmes, Lossing, et al., 1991
Holmes, J.L.; Lossing, F.P.; Mayer, P.M.,
Heats of formation of oxygen-containing organic free radicals from appearance energy measurements,
J. Am. Chem. Soc., 1991, 113, 9723. [all data]
Holmes, Mommers, et al., 1984
Holmes, J.L.; Mommers, A.A.; Szulejko, J.E.; Terlouw, J.K.,
Two new stable [C3H8O]+ isomers: The radical cations [C3H6OH2]+,
J. Chem. Soc., Chem. Commun., 1984, 165. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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