Dodecanoic acid
- Formula: C12H24O2
- Molecular weight: 200.3178
- IUPAC Standard InChI: InChI=1S/C12H24O2/c1-2-3-4-5-6-7-8-9-10-11-12(13)14/h2-11H2,1H3,(H,13,14)
- IUPAC Standard InChIKey: POULHZVOKOAJMA-UHFFFAOYSA-N
- CAS Registry Number: 143-07-7
- 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: n-Dodecanoic acid; Neo-fat 12; Aliphat no. 4; ABL; Dodecylic acid; Lauric acid; Laurostearic acid; Neo-fat 12-43; Ninol aa62 extra; Univol U-314; Vulvic acid; 1-Undecanecarboxylic acid; Duodecylic acid; C-1297; Hydrofol acid 1255; Hydrofol acid 1295; Wecoline 1295; Dodecoic acid; Hystrene 9512; Lunac L 70; Emery 650; Philacid 1200; Prifrac 2920; Undecane-1-carboxylic acid; Acide Laurique; Emery 651; Lauric acid (dodecanoic acid); Dodecanoic (Lauric) acid; dodecanoic acid (lauric acid)
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°liquid | -7377.0 ± 0.9 | kJ/mol | Ccb | Adriaanse, Dekker, et al., 1965 | Hfusion=36.7 kJ/mol; Corresponding ΔfHºliquid = -775.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -7423.7 ± 7.5 | kJ/mol | Ccb | Roth and Rist-Schumacher, 1944 | Reanalyzed by Cox and Pilcher, 1970, Original value = -7425.8 ± 7.5 kJ/mol; At 292 °K; Corresponding ΔfHºsolid = -728.39 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 404.28 | 298.15 | Schaake, van Miltenburg, et al., 1982 | T = 80 to 345 K.; DH |
| 428.9 | 301. | Garner and Randall, 1924 | T = 18 to 78°C. Mean value 19 to 39°C.; DH |
| 381. | 279. | Stohmann and Wilsing, 1885 | T = 0 to 100°C. Mean value 0 to 12°C.; DH |
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.
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]
Roth and Rist-Schumacher, 1944
Roth, W.A.; Rist-Schumacher, E.,
Beitrag zur thermochemie der sulfonsauren und saurechlorid,
Z. Electrochem., 1944, 50, 7-9. [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]
Schaake, van Miltenburg, et al., 1982
Schaake, R.C.F.; van Miltenburg, J.C.; De Kruif, C.G.,
Thermodynamic properties of the normal alkanoic acids. II. Molar heat capacities of seven even-numbered normal alkanoic acids,
J. Chem. Thermodynam., 1982, 14, 771-778. [all data]
Garner and Randall, 1924
Garner, W.E.; Randall, F.C.,
Alternation in the heats of crystallization of the normal monobasic fatty acids. Part I.,
J. Chem. Soc., 1924, 125, 881-896. [all data]
Stohmann and Wilsing, 1885
Stohmann, F.; Wilsing, H.,
Ueber die specifische Wärme und die Schmelzwärme der Myristinsäure und der Laurinsäure,
J. Prakt. Chem., 1885, 140, 80-93. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔcH°solid Enthalpy of combustion of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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