Ethylmalonic acid
- Formula: C5H8O4
- Molecular weight: 132.1146
- IUPAC Standard InChIKey: UKFXDFUAPNAMPJ-UHFFFAOYSA-N
- CAS Registry Number: 601-75-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Propanedioic acid, ethyl-; α-Carboxybutyric acid; Malonic acid, ethyl-; 1,1-Propanedicarboxylic acid
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -203.1 ± 0.26 | kcal/mol | Ccb | Al-Takhin, Pilcher, et al., 1983 |
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°solid | -228.3 ± 0.24 | kcal/mol | Ccb | Al-Takhin, Pilcher, et al., 1983 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -519.18 | kcal/mol | Ccb | Verkade and Coops, 1933 | At 288 °K; Corresponding ΔfHºsolid = -224.34 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 384. | K | N/A | Vogel, 1948 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 26.96 ± 0.53 | kcal/mol | ME | Ribeiro da Silva, Monte, et al., 2000 | AC |
ΔsubH° | 25.2 ± 0.1 | kcal/mol | C | Al-Takhin, Pilcher, et al., 1983 | ALS |
ΔsubH° | 25.22 | kcal/mol | N/A | Al-Takhin, Pilcher, et al., 1983 | DRB |
References
Go To: Top, Gas phase thermochemistry data, 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.
Al-Takhin, Pilcher, et al., 1983
Al-Takhin, G.; Pilcher, G.; Bickerton, J.,
Standard enthalpies of formation of diamine(dicarboxylato)platinum(II) complexes and of bis(pentane-2,4-dionato)platinum(II): the mean Pt-O bond dissociation enthalpies,
J. Chem. Soc. Dalton Trans., 1983, 2657-2659. [all data]
Verkade and Coops, 1933
Verkade, P.E.; Coops, J., Jr.,
Alternation phenomena VI (calorimetric researches XX): alternations in the properties of n.monoalkylmalonic acids. Some remarks on malkins views concerning the alternation phenonema,
Recl. Trav. Chim. Pays-Bas, 1933, 52, 747-767. [all data]
Vogel, 1948
Vogel, A.I.,
J. Chem. Soc., 1948, 1948, 624-44. [all data]
Ribeiro da Silva, Monte, et al., 2000
Ribeiro da Silva, Manuel A.V.; Monte, Manuel J.S.; Ribeiro, José R.,
Standard Enthalpies, Entropies, and Gibbs Functions of Sublimation of Four Alkyl-Substituted Malonic Acids,
J. Chem. Eng. Data, 2000, 45, 5, 756-759, https://doi.org/10.1021/je000090n
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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