Paraldehyde
- Formula: C6H12O3
- Molecular weight: 132.1577
- IUPAC Standard InChIKey: SQYNKIJPMDEDEG-UHFFFAOYSA-N
- CAS Registry Number: 123-63-7
- 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. - Stereoisomers:
- Other names: 1,3,5-Trioxane, 2,4,6-trimethyl-; s-Trioxane, 2,4,6-trimethyl-; s-Trimethyltrioxymethylene; Acetaldehyde trimer; Elaldehyde; Paraacetaldehyde; Paracetaldehyde; Paral; Pcho; 1,3,5-Trimethyl-2,4,6-trioxane; 2,4,6-Trimethyl-s-trioxane; 2,4,6-Trimethyl-1,3,5-trioxane; 2,4,6-Trimethyl-1,3,5-trioxan; Paraldehyd; Paraldeide; Triacetaldehyde; 2,4,6-Trimethyl-1,3,5-trioxaan; 2,4,6-Trimethyl-1,3,5-trioxacyclohexane; 2,4,6-Trimetil-1,3,5-triossano; Rcra waste number U182; UN 1264; Trimethyl trioxane; NSC 9799
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -152.1 ± 0.7 | kcal/mol | Ccb | Pihlaja and Tuomi, 1970 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 89.5 ± 1.2 | cal/mol*K | N/A | Clegg G.A., 1969 | GT |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pihlaja and Tuomi, 1970
Pihlaja, K.; Tuomi, M.,
Bond-Bond interactions in organic oxygen compounds. Part II. Anomalous stablization in cis-2,4,6-trimethyl-1,3,5-trioxane,
Suom. Kemistil., 1970, 43, 224-226. [all data]
Clegg G.A., 1969
Clegg G.A.,
Thermodynamics of polymerization of heterocyclic compounds. Part IV. The heat capacity, entropy, enthalpy and free energy of paraldehyde,
Makromol. Chem., 1969, 123, 194-202. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
S°gas Entropy of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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