Triacetin
- Formula: C9H14O6
- Molecular weight: 218.2039
- IUPAC Standard InChI: InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3
- IUPAC Standard InChIKey: URAYPUMNDPQOKB-UHFFFAOYSA-N
- CAS Registry Number: 102-76-1
- 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: 1,2,3-Propanetriol, triacetate; Acetin, tri-; Enzactin; Fungacetin; Glycerin triacetate; Glycerol triacetate; Glyceryl triacetate; Glyped; Kesscoflex TRA; Triacetine; Vanay; Kodaflex triacetin; Triacetyl glycerine; Triacetyl glycerin; Triacetyl glycerol; 1,2,3-Propanetriol, 1,2,3-triacetate; NSC 4796; Glycerol, acetylated; 2-(Acetyloxy)-1-[(acetyloxy)methyl]ethyl acetate
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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 |
|---|---|---|---|---|---|
| ΔfH°liquid | -318.1 ± 1.0 | kcal/mol | Ccb | Tavernier and Lamouroux, 1956 | Reanalyzed by Cox and Pilcher, 1970, Original value = -315.77 kcal/mol; Author's hf298_condensed=-320.274 kcal/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1006.6 ± 1.0 | kcal/mol | Ccb | Tavernier and Lamouroux, 1956 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1008.906 kcal/mol; Author's hf298_condensed=-320.274 kcal/mol; Corresponding ΔfHºliquid = -318.07 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 109.5 | cal/mol*K | N/A | Rabinovich, Khlyustova, et al., 1983 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 92.97 | 298.15 | Nilsson and Wadso, 1986 | DH |
| 91.95 | 300. | Rabinovich, Khlyustova, et al., 1983 | T = 9 to 320 K.; DH |
| 96.1 | 298.15 | Fuchs, 1979 | 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.
Tavernier and Lamouroux, 1956
Tavernier, P.; Lamouroux, M.,
Determinations calorimetriques relatives a vingt-six substances organiques,
Mem. Poudres, 1956, 38, 65-88. [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]
Rabinovich, Khlyustova, et al., 1983
Rabinovich, I.B.; Khlyustova, T.B.; Mochalov, A.N.; Kokurina, N.Yu.,
The heat capacity and thermodynamic properties of triacetin in the temperature range 0-320 K,
Zhur. Fiz. Khim., 1983, 57, 2867-2869. [all data]
Nilsson and Wadso, 1986
Nilsson, S.-O.; Wadso, I.,
Thermodynamic properties of some mono-, di-, and tri esters. Enthalpies of solution in water at 288.15 to 318.15 K and enthalpies of vaporization and heat capacities at 298.15 K,
J. Chem. Thermodyn., 1986, 18, 673-681. [all data]
Fuchs, 1979
Fuchs, R.,
Heat capacities of some liquid aliphatic, alicyclic, and aromatic esters at 298.15 K,
J. Chem. Thermodyn., 1979, 11, 959-961. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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