Pentanoic acid
- Formula: C5H10O2
- Molecular weight: 102.1317
- IUPAC Standard InChIKey: NQPDZGIKBAWPEJ-UHFFFAOYSA-N
- CAS Registry Number: 109-52-4
- 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: Valeric acid; n-Pentanoic acid; n-Valeric acid; Propylacetic acid; Valerianic acid; 1-Butanecarboxylic acid; n-C4H9COOH; Butanecarboxylic acid; Kyselina valerova; Valeric acid, normal; 1-Pentanoic acid; NSC 406833; Valeric acid, n-; NA 1760
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Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.)
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: Donald R. Burgess, Jr.
ΔfH°gas (kcal/mol) | Method | Reference | Comment |
---|---|---|---|
-118.7 ± 0.98 | Ccb | Adriaanse, Dekker, et al., 1965 | Value computed using ΔfHliquid° from Adriaanse, Dekker, et al., 1965 and ΔvapH° value of 14.9 kcal/mol from Kruif and Oonk, 1979.; DRB |
-119.0 ± 0.98 | N/A | Lebedeva, 1964 | Value computed using ΔfHliquid° value of -560.24±0.67 kj/mol from Lebedeva, 1964 and ΔvapH° value of 62.4±4 kj/mol from missing citation.; DRB |
-117.4 | N/A | Lebedeva, 1964 | Value computed using ΔfHliquid° value of -560.24±0.67 kj/mol from Lebedeva, 1964 and ΔvapH° value of 69.27 kj/mol from missing citation.; DRB |
-119.0 ± 0.98 | Ccb | Lebedeva, 1964 | Value computed using ΔfHliquid° from Lebedeva, 1964 and ΔvapH° value of 14.9 kcal/mol from Kruif and Oonk, 1979.; DRB |
-115.7 ± 1.7 | N/A | Hancock, Watson, et al., 1954 | Value computed using ΔfHliquid° value of -546.6±5.9 kj/mol from Hancock, Watson, et al., 1954 and ΔvapH° value of 62.4±4 kj/mol from missing citation.; DRB |
-114.1 | N/A | Hancock, Watson, et al., 1954 | Value computed using ΔfHliquid° value of -546.6±5.9 kj/mol from Hancock, Watson, et al., 1954 and ΔvapH° value of 69.27 kj/mol from missing citation.; DRB |
-115.7 ± 1.7 | Ccb | Hancock, Watson, et al., 1954 | Value computed using ΔfHliquid° from Hancock, Watson, et al., 1954 and ΔvapH° value of 14.9 kcal/mol from Kruif and Oonk, 1979.; DRB |
-119.7 ± 1.0 | Ccb | Schjanberg, 1937 | Value computed using ΔfHliquid° from Schjanberg, 1937 and ΔvapH° value of 14.9 kcal/mol from Kruif and Oonk, 1979.; DRB |
References
Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Adriaanse, Dekker, et al., 1965
Adriaanse, N.; Dekker, H.; Coops, J.,
Heats of combustion of normal saturated fatty acids and their methyl esters,
Rec. Trav. Chim. Pays/Bas, 1965, 84, 393-407. [all data]
Kruif and Oonk, 1979
Kruif, C.G.; Oonk, H.A.J.,
Enthalpies of vaporization and vapour pressures of seven aliphatic carboxylic acids,
J. Chem. Thermodyn., 1979, 11, 287-290. [all data]
Lebedeva, 1964
Lebedeva, N.D.,
Heats of combustion of monocarboxylic acids,
Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]
Hancock, Watson, et al., 1954
Hancock, C.K.; Watson, G.M.; Gilby, R.F.,
Heats of combustion of five-carbon fatty acids and their methyl and ethyl esters,
J. Phys. Chem., 1954, 58, 127-129. [all data]
Schjanberg, 1937
Schjanberg, E.,
Die verbrennungswarmen und die refraktionsdaten einiger pentensaureeste,
Z. Phys. Chem., 1937, 178, 274-281. [all data]
Notes
Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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