Peroxide, dimethyl
- Formula: C2H6O2
- Molecular weight: 62.0678
- IUPAC Standard InChI: InChI=1S/C2H6O2/c1-3-4-2/h1-2H3
- IUPAC Standard InChIKey: SRXOCFMDUSFFAK-UHFFFAOYSA-N
- CAS Registry Number: 690-02-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Methyl peroxide; Dimethyl peroxide; (CH3O)2
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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 | -30.0 | kcal/mol | Ccb | Baker, Littlefair, et al., 1965 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°gas | -363.0 ± 0.3 | kcal/mol | Ccb | Baker, Littlefair, et al., 1965 | Corresponding ΔfHºgas = -30.0 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 9.610 | 50. | Dorofeeva O.V., 1997 | p=1 bar.; GT |
| 11.94 | 100. | ||
| 13.95 | 150. | ||
| 15.65 | 200. | ||
| 19.3 ± 0.7 | 298.15 | ||
| 19.35 | 300. | ||
| 23.54 | 400. | ||
| 27.531 | 500. | ||
| 31.040 | 600. | ||
| 34.061 | 700. | ||
| 36.656 | 800. | ||
| 38.893 | 900. | ||
| 40.822 | 1000. | ||
| 42.483 | 1100. | ||
| 43.917 | 1200. | ||
| 45.158 | 1300. | ||
| 46.231 | 1400. | ||
| 47.163 | 1500. |
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.
Baker, Littlefair, et al., 1965
Baker, G.; Littlefair, J.H.; Shaw, R.; Thynne, J.C.J.,
1286. The heats of formation of dimethyl, diethyl, and di-t-butyl peroxide,
J. Chem. Soc., 1965, 6970-6972. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°gas Enthalpy of combustion 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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