2,4-Pentanedione, 3-methyl-
- Formula: C6H10O2
- Molecular weight: 114.1424
- IUPAC Standard InChIKey: GSOHKPVFCOWKPU-UHFFFAOYSA-N
- CAS Registry Number: 815-57-6
- 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. - Other names: Methylacetylacetone; 3-Methyl-2,4-pentanedione; 3-Acetylbutan-2-one; 3-methylpentane-2,4-dione
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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 | -437.0 ± 1.9 | kJ/mol | Ccb | Ribeiro da Silva, Ferrao, et al., 1992 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3353.2 ± 1.7 | kJ/mol | Ccb | Ribeiro da Silva, Ferrao, et al., 1992 | Corresponding ΔfHºliquid = -437.0 kJ/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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 446.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 442.15 | K | N/A | Sabatier and Mailhe, 1909 | Uncertainty assigned by TRC = 3. K; TRC |
Tboil | 442.15 | K | N/A | Sabatier and Mailhe, 1907 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 48.5 ± 5.0 | kJ/mol | E | Ribeiro da Silva, Ferrao, et al., 1992 | ALS |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ribeiro da Silva, Ferrao, et al., 1992
Ribeiro da Silva, M.A.V.; Ferrao, M.L.C.C.H.; Monte, M.J.S.; Esteves da Silva, R.M.G.; Ribeiro, J.C.,
Standard enthalpies of formation of 3-methylpentane-2,4-dione and of bis(3-methylpentane-2,4-dionato)copper(II): the mean (Cu-O) bond-dissociation enthalpy,
J. Chem. Thermodyn., 1992, 24, 585-594. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Sabatier and Mailhe, 1909
Sabatier, P.; Mailhe, A.,
New Applications of the General Method of Hydrogenation with Various Metals,
Ann. Chim. Phys., 1909, 16, 70. [all data]
Sabatier and Mailhe, 1907
Sabatier, P.; Mailhe, A.,
The Direct Hydrogenation of Methyl Diketones,
C. R. Hebd. Seances Acad. Sci., 1907, 144, 1086. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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