Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited

T. J. Wallington, A. R. Potts, Jean M. Andino, W. O. Siegl, Z. Zhang, M. J. Kurylo, R. E. Huie

Research output: Contribution to journalArticle

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Abstract

The kinetics of the reaction of OH radicals with t-amyl methyl ether (TAME) have been reinvestigated using both absolute (flash photolysis resonance fluorescence) and relative rate techniques. Relative rate experiments were conducted at 295 K in 99 kPa (740 torr) of synthetic air using ethyl t-butyl ether, cyclohexane, and di-isopropyl ether as reference compounds. Absolute rate experiments were performed over the temperature range 240-400 K at a total pressure of 4.7 kPa (35 torr) of argon. Rate constant determinations from both techniques are in good agreement and can be represented by k1 = (6.32 ± 0.72) × 10-12 exp[(-40 ± 70)/T] cm3 molecule-1 s-1. (1) OH + CH3OC(CH3)2C2H5 (TAME) → products Quoted errors represent 2σ from the latest squares analysis and do not include any estimate of systematic errors. We show that results from the previous kinetic study of reaction (1) are in error due to the presence of a reactive impurity. Results are discussed in terms of the atmospheric chemistry of TAME.

Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalInternational Journal of Chemical Kinetics
Volume25
Issue number4
Publication statusPublished - Apr 1993

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Methyl Ethers
Ethers
ethers
Kinetics
kinetics
Atmospheric chemistry
Argon
Photolysis
Systematic errors
Ether
Rate constants
Fluorescence
Experiments
Air
atmospheric chemistry
Impurities
Pressure
resonance fluorescence
Cyclohexane
Molecules

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Wallington, T. J., Potts, A. R., Andino, J. M., Siegl, W. O., Zhang, Z., Kurylo, M. J., & Huie, R. E. (1993). Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited. International Journal of Chemical Kinetics, 25(4), 265-272.

Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited. / Wallington, T. J.; Potts, A. R.; Andino, Jean M.; Siegl, W. O.; Zhang, Z.; Kurylo, M. J.; Huie, R. E.

In: International Journal of Chemical Kinetics, Vol. 25, No. 4, 04.1993, p. 265-272.

Research output: Contribution to journalArticle

Wallington, TJ, Potts, AR, Andino, JM, Siegl, WO, Zhang, Z, Kurylo, MJ & Huie, RE 1993, 'Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited', International Journal of Chemical Kinetics, vol. 25, no. 4, pp. 265-272.
Wallington TJ, Potts AR, Andino JM, Siegl WO, Zhang Z, Kurylo MJ et al. Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited. International Journal of Chemical Kinetics. 1993 Apr;25(4):265-272.
Wallington, T. J. ; Potts, A. R. ; Andino, Jean M. ; Siegl, W. O. ; Zhang, Z. ; Kurylo, M. J. ; Huie, R. E. / Kinetics of the reaction of OH radicals with t-amyl methyl ether revisited. In: International Journal of Chemical Kinetics. 1993 ; Vol. 25, No. 4. pp. 265-272.
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