Pentanedioic acid
- Formula: C5H8O4
- Molecular weight: 132.1146
- IUPAC Standard InChI: InChI=1S/C5H8O4/c6-4(7)2-1-3-5(8)9/h1-3H2,(H,6,7)(H,8,9)
- IUPAC Standard InChIKey: JFCQEDHGNNZCLN-UHFFFAOYSA-N
- CAS Registry Number: 110-94-1
- 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: Glutaric acid; 1,3-Propanedicarboxylic acid; 1,5-Pentanedioic acid; Pentandioic acid
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Condensed phase thermochemistry data
Go To: Top, Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -960.5 ± 1.1 | kJ/mol | Ccb | El-Sayed, 1993 | |
| ΔfH°solid | -960.0 ± 1.2 | kJ/mol | Ccb | Wilhoit and Shiao, 1964 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2150.35 ± 0.75 | kJ/mol | Ccb | El-Sayed, 1993 | Corresponding ΔfHºsolid = -960.52 kJ/mol (simple calculation by NIST; no Washburn corrections) |
| ΔcH°solid | -2150.9 ± 1.2 | kJ/mol | Ccb | Wilhoit and Shiao, 1964 | Corresponding ΔfHºsolid = -959.98 kJ/mol (simple calculation by NIST; no Washburn corrections) |
| ΔcH°solid | -2151.6 ± 0.50 | kJ/mol | Ccb | Verkade, Hartman, et al., 1926 | Reanalyzed by Cox and Pilcher, 1970, Original value = -2154. kJ/mol; See Verkade, Hartman, et al., 1924; Corresponding ΔfHºsolid = -959.31 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Reaction thermochemistry data
Go To: Top, Condensed phase thermochemistry 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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C5H7O4- + =
By formula: C5H7O4- + H+ = C5H8O4
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1367. ± 8.4 | kJ/mol | CIDC | Kumar, Prabhakar, et al., 2005 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1338. ± 8.4 | kJ/mol | CIDC | Kumar, Prabhakar, et al., 2005 | gas phase |
References
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
El-Sayed, 1993
El-Sayed, N.I.,
The enthalpy of combustion and formation of hydantoin,
Asian J. Chem., 1993, 5, 199-207. [all data]
Wilhoit and Shiao, 1964
Wilhoit, R.C.; Shiao, D.,
Thermochemistry of biologically important compounds. Heats of combustion of solid organic acids.,
J. Chem. Eng. Data, 1964, 9, 595-599. [all data]
Verkade, Hartman, et al., 1926
Verkade, P.E.; Hartman, H.; Coops, J.,
Calorimetric researches. X. Heats of combustion of successive terms of homologous series: dicarboxylic acids of the oxalic acid series,
Rec. Trav. Chim. Pays/Bas, 1926, 45, 373-393. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Verkade, Hartman, et al., 1924
Verkade, P.E.; Hartman, H.; Coops, J., Jr.,
Chemistry - The molecular heat of combustion of successive terms of homologous series,
Kom. Med. Akad. Ueknschap. Proc., 1924, 27, 859-866. [all data]
Kumar, Prabhakar, et al., 2005
Kumar, M.R.; Prabhakar, S.; Nagaveni, V.; Vairamani, M.,
Estimation of gas-phase acidities of a series of dicarboxylic acids by the kinetic method,
Rapid Commun. Mass Spectrom., 2005, 19, 8, 1053-1057, https://doi.org/10.1002/rcm.1888
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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