Methyl peroxide
- Formula: CH4O2
- Molecular weight: 48.0413
- IUPAC Standard InChIKey: MEUKEBNAABNAEX-UHFFFAOYSA-N
- CAS Registry Number: 3031-73-0
- Chemical structure:
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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 | -31.31 | kcal/mol | Eqk | Khursan and Martem'yanov, 1991 | hf from V. P.Komissarov's report; ALS |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.561 | 50. | Dorofeeva O.V., 1997 | p=1 bar.; GT |
10.31 | 100. | ||
11.62 | 150. | ||
12.70 | 200. | ||
15.0 ± 0.7 | 298.15 | ||
15.03 | 300. | ||
17.60 | 400. | ||
20.02 | 500. | ||
22.13 | 600. | ||
23.941 | 700. | ||
25.502 | 800. | ||
26.855 | 900. | ||
28.033 | 1000. | ||
29.058 | 1100. | ||
29.955 | 1200. | ||
30.739 | 1300. | ||
31.422 | 1400. | ||
32.022 | 1500. |
Reaction 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 by: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
CH3O2- + =
By formula: CH3O2- + H+ = CH4O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 374.63 ± 0.76 | kcal/mol | G+TS | Blanksby, Ramond, et al., 2001 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 367.60 ± 0.70 | kcal/mol | IMRE | Blanksby, Ramond, et al., 2001 | gas phase |
Henry's Law 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 by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
310. | 5200. | M | N/A | |
300. | 5300. | M | N/A | This value is a correction of the solubility published by missing citation. |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Khursan and Martem'yanov, 1991
Khursan, S.L.; Martem'yanov, V.S.,
Thermochemistry of the recombination of peroxyl radicals,
Russ. J. Phys. Chem. (Engl. Transl.), 1991, 65, 321-325. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Blanksby, Ramond, et al., 2001
Blanksby, S.J.; Ramond, T.M.; Davico, G.E.; Nimlos, M.R.; Kato, S.; Bierbaum, V.M.; Lineberger, W.C.; Ellison,
Negative-ion photoelectron spectroscopy, gas-phase acidity, and thermochemistry of the peroxyl radicals CH3OO and CH3CH2OO,
J. Am. Chem. Soc., 2001, 123, 39, 9585-9596, https://doi.org/10.1021/ja010942j
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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