Propanal, 2-methyl-
- Formula: C4H8O
- Molecular weight: 72.1057
- IUPAC Standard InChI: InChI=1S/C4H8O/c1-4(2)3-5/h3-4H,1-2H3
- IUPAC Standard InChIKey: AMIMRNSIRUDHCM-UHFFFAOYSA-N
- CAS Registry Number: 78-84-2
- 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: Isobutyraldehyde; α-Methylpropionaldehyde; Isobutanal; Isopropylaldehyde; Isopropylformaldehyde; 2-Methylpropanal; 2-Methylpropionaldehyde; iso-C3H7CHO; Isobutylaldehyde; Isobutyric aldehyde; 2-Methyl-1-propanal; Isobutyraldehyd; Propionaldehyde, 2-methyl-; Valine aldehyde; Isobutaldehyde; Isobutyryl aldehyde; Methyl propanal; NCI-C60968; UN 2045; Isobutyral; NSC 6739; 2-methylpropanal (isobutanal)
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Condensed phase thermochemistry data
Go To: Top, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -247.3 ± 0.92 | kJ/mol | Cm | Wiberg, Crocker, et al., 1991 | |
| ΔfH°liquid | -247.9 ± 0.7 | kJ/mol | Ccb | Gubareva and Gerasimov, 1990 | |
| ΔfH°liquid | -247.2 ± 1.3 | kJ/mol | Eqk | Connett, 1975 | Heat of dehydrogenation |
| ΔfH°liquid | -250.2 ± 0.75 | kJ/mol | Ccb | Tjebbes, 1962 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -2469.4 ± 0.7 | kJ/mol | Ccb | Gubareva and Gerasimov, 1990 | Corresponding ΔfHºliquid = -248.0 kJ/mol (simple calculation by NIST; no Washburn corrections) |
| ΔcH°liquid | -2467.2 ± 0.75 | kJ/mol | Ccb | Tjebbes, 1962 | Corresponding ΔfHºliquid = -250.2 kJ/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Gubareva and Gerasimov, 1990
Gubareva, A.I.; Gerasimov, P.A.,
Physicochemical properties of isobutyraldehyde,
J. Appl. Chem. USSR, 1990, 63, 844-846. [all data]
Connett, 1975
Connett, J.E.,
Chemical equilibria 6. Measurement of equilibrium constants for the dehydrogenation of 2-methylpropan-1-ol by a vapour-flow technique,
J. Chem. Thermodyn., 1975, 7, 1159-1162. [all data]
Tjebbes, 1962
Tjebbes, J.,
Heats of combustion of propanal and 2-methyl propanal,
Acta Chem. Scand., 1962, 16, 953-857. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.