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Products of the gas‐phase reaction of methyl tert ‐butyl ether with the OH radical in the presence of NO x
Author(s) -
Tuazon Ernesto C.,
Carter William P. L.,
Aschmann Sara M.,
Atkinson Roger
Publication year - 1991
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550231105
Subject(s) - chemistry , formaldehyde , methyl formate , ether , formate , nox , acetone , ethyl formate , infrared spectroscopy , gas chromatography , reaction mechanism , absorption (acoustics) , hydroxyl radical , fourier transform infrared spectroscopy , methyl tert butyl ether , diisopropyl ether , radical , methyl acetate , methanol , organic chemistry , combustion , chromatography , catalysis , physics , quantum mechanics , acoustics
The products of the reaction of the hydroxyl (OH) radical with methyl tert ‐butyl ether (MTBE) in NO x ‐air systems were identified and measured by Fourier transform infrared absorption spectroscopy and gas chromatography. The products observed, and their yields, were as follows: t ‐butyl formate, 76 ± 7%; formaldehyde, 37 −1 +6 %; methyl acetate, 17 ± 2%, and acetone, 2.1 ± 0.9%, where the stated error limits represent both random (two standard deviations) and estimated systematic uncertainties. These products account for ca. 95% of the MTBE carbon reacted. Infrared absorption bands which may be due to small amounts of organic nitrate formation were observed, but organic nitrate yields could not be quantified. These data allow a chemical mechanism for the reaction of MTBE with the OH radical in the presence of NO x to be formulated.